Oecophorid (Micro Lepidoptera) diversity from Shivalikhills of northwestern Himalaya

 

P.C.Pathania ¹, Rachita Sood ² & H.S. Rose ³

 

¹ Department of Entomology, Punjab Agricultural University, Ludhiana, Punjab 141004, India

² Department of Zoology, Guru Nanak (PG) Girls College, Model Town, Ludhiana, Punjab 141002, India

3 Departmentof Life Sciences, Lovely Professional University, Jalandhar, Punjab 144003, India

E-mail: ¹ pathaniapc@yahoo.co.in

 

 

 

Date of online publication 26 July 2009

ISSN 0974-7907 (online) | 0974-7893 (print)

 

Editor: R.K. Varshney

 

Manuscript details:

Ms # o1984

Received 23 April 2008

Final received 23 June 2009

Finally accepted 25 June 2009

 

Citation: Pathania, P.C., Rachita Sood & H.S. Rose (2009). Oecophorid(Micro Lepidoptera) diversity from Shivalik hills of northwestern Himalaya. Journal of Threatened Taxa1(7): 385-391.

 

Copyright: © P.C. Pathania, Rachita Sood & H.S. Rose 2009. Creative Commons Attribution 3.0Unported License. JoTTallows unrestricted use of this article in any medium for non-profit purposes, reproduction and distribution by providing adequate credit to the authors and the source of publication.

 

Acknowledgement: We are thankful to the Ministry of Environment and Forests (GOI), New Delhi, and Department of Science and Technology, New Delhi for funding the projects on moths and to the ViceChancellor, Punjabi University, Patiala and Punjab Agricultural University, Ludhiana for providing necessary facilities to run the projects. We also thank to Dr. V.V. Ramamurthy, Principal Scientist, Division of Entomology, I.A.R.I., New Delhi for giving permission to visit National Pusa Collection and valuable suggestions during the course of these studies.

 

 

For Figure – click here

 

Abbreviations: 1A - First anal vein; 2A - Second anal vein; 3A - Third anal vein; 1A+2A - Vein representing fused first and second anal vein; CuA1 - First cubital vein; CuA2 - Second cubital vein; CuP- Cubital posterior vein; M1 - First median vein; M2 - Second median vein; M3 - third median vein; R1 - First radial vein; R2 - Second radial vein; R3 - Third radial vein; R4 - Fourth radial vein;R5 - Fifth radial vein; Rs - Radial sector; Sc - Subcostal vein; Sc+R1 - Stalk of subcostal and first radial vein.

 

Family Oecophoridae belongs to the superfamily Gelechioidea, which includes mostly small moths.  The moths of this family have vertex and frons covered with smooth scales, antenna filiform, longer than half the length of forewing; labial palpus long, upturned; male genitalia with gnathos broader at base, unarticulated, tapering to slender or rounded apex.  The elevation of the Shivalik range extends up to 1500m above m.s.l., and is demarcated by the Kali River in Uttarakhand and the Indus in Jammu and Kashmir (Fig. 1) (Chitkara 1998).  The authors undertook survey-cum-collection tours to localities including Kangra, Palampur, Dharamshala, Tanyhar, Sarkaghat, Baijnath, Andhretta, Solan, Dharampur, Nauni, Sabathu, Renuka lake, Nahan, Paunta Sahib (Himachal Pradesh), Jammu, Katra, MansarLake (Jammu & Kashmir), Dehradun, Haridwar, Vikasnagar (Uttarakhand), Kalka, Pinjore(Haryana), Pathankot, Hoshiarpur,Dasua, Dhar, Roopnagar, Dunera, Mirzapur, Nawanshahar and Anandpur (Punjab) during different seasons from November, 1997 to November, 2001, representing the Shivalikshills of northwestern Himalaya.  The present studies were undertaken to remedy negligence in the study of Microlepidoptera in India due to their small size.

 

Methodology

Adults were collected during the night time with the help of portable light traps.  Specimens were also collected by hanging a source of light (125 - Watt mercury vapour lamp) on a white sheet or white washed wall.  The collected Oecophorid moths were killed using 1,1,2,2,tetrachloro ethane or ethyl acetate.  The methodology discussed by Lindquist (1956), Tagestad (1974), Zimmerman (1978), Mikkola (1986) and Landry & Landry (1994) was followed for the pinning, stretching and preservation of specimens. For study of wings and genitalia standard techniques given by Zimmerman (1978) and Robinson (1976), respectively, have been followed.  To study the taxonomic descriptions on various morphological characters (Robinson 1976; Park 1995; Hodges 1998), wing venation (Common 1970; Zimmerman 1978) and external genitalia (Klots 1970), were consulted.  Illustrations and diagrams were made using a Camera Lucida attached to a stereoscopic light microscope.  Colour photographs of all the species were taken before dissection.

 

Observations

Preliminary sorting and taxonomic segregation was done with the help of literature (Meyrick 1894, 1905, 1907, 1908, 1908a, 1909, 1910, 1911, 1912-1916,1913, 1914, 1916-1923, 1923-1930, 1930-1936, Fletcher 1921, 1929; Gaede 1937; Diakonoff 1952, 1954;Janse 1954; Roonwal et al. 1964; Clarke 1955,1965, 1969; Gaedike 1967; Hodges 1978; Moriuti et al. 1985; Nye & Fletcher 1991; Robinson et al. 1994; Hampson 1992, 1994, 1995, 1996;Lovovsky 1996; Ueda & Moriuti1996).  Holotypesof the new species have been deposited in the Lepidoptera Laboratory, Department of Zoology, Punjabi University, Patiala.  Taxonomic segregation of moths recorded in this study was based on the morphological details as presented below.

 

Order: Lepidoptera

Superfamily: Gelechioidea

Vertex and frons decorated with smooth scales; labial palpus three segmented, upturned, third segment long, acute; forewing with veins R4+R5 stalked; hind tibia with dorsal surface furnished with long slender scales.

 

Family: Oecophoridae

Oecophoridae Bruand, 1850, Mem. Soc.Emul. Doubs, (1) 3 (5-6): 45 (as Aecophoridae). Type-genus: Oecophora Latreille, [1796], Précis Caractéres genériques insetes: 146.

Vertex and frons covered with smooth scales; antenna filiform, longer than half the length of forewing; labial palpus long, upturned; male genitalia with gnathos broad basally, unarticulated, tapering to slender or rounded apex.

 

Subfamily: Autostichinae

Autostichinae Le Marchand, 1947, Revue fr. Lepidopt., 11: 153.Type-genus: Autosticha Meyrick, 1886, Trans. ent. Soc. Lond., 1886: 281.

Forewing with CuA1 and CuA2 stalked or directed posteriorly from cell or separate, CuP very weak on margin; abdominal tergal setae slender, sometimes deciduous.

 

I. Genus: Apethistis Meyrick

Apethistis Meyrick, 1908, J. Bombay nat. Hist. Soc., 18: 459. Type-species: Apethistis metoeca Meyrick, 1908, ibidem., 18: 460, by original designation.

Vertex and frons dressed with semi-erect scales; labial palpus long, second segment small, scaled, third segment long and acute; antenna long, filiform, about ¾ length of forewing; legs with erect scales on tibia; forewing with veins R1, R2, R3 free, R4+R5 stalked, R4 to costa, R5 to termen, M1 and M2 free, CuA1+CuA2 stalked; hindwing with Rs+M1 stalked, Rs to costa, M1 to termen, M3 and CuA1 connate. Male genitalia with uncus furcate, long, sclerotized, pointed apically; socii absent; gnathostwo arms, apex pointed; saccus absent; valva small, broad, costa with a hook-like process, inner surface of cucullus densely setosed; aedeagus rounded basally, swollen; vesica without any cornutus. Female genitalia with ductus bursae centrally placed; corpus bursaeovate in shape; signum present, kidney-shaped.

Description of species recorded in this study are given below under their respective subfamilies.

 

1. Apethistis insulsa (Meyrick)

Brachmia insulsa Meyrick, 1914, J. Bombay nat. Hist. Soc., 22: 774.

Material examined: 3 males, 2 females, 3.iv.1999; 3 males, 2 females, 22.iv.1999; 12 males, 2 females, 25.iv.1999; 1 female, 17.iv.2000; 11 males, 6 females, 18.iv.2000, Forest Research Institute, Dehradun, Dist. Dehradun, Uttarakhand, 700m; 8 males, 6 females, 26.iv.1999; 2 males, 27.iv.1999, Haridwar, Dist. Dehradun, Uttarakhand, 800m, coll. P.C. Pathania.

Distribution: India, Pusa (Bengal) (Clarke 1969); Dehradun,Haridwar (Uttarakhand) (present work).

Larval host plant: Unknown

 

2. Apethistis metoeca Meyrick

Apethistis metoeca Meyrick, 1908, J. Bombay nat. Hist. Soc., 18: 460.

Material examined: 1 male, 23.iii.1998; 1 male, 16.iv.1998; 2 males, 11.iii.1999; 1 male, 15.iii.1999; 1 male, 24.iii.1999;  3 males, 2 females, 25.iii.1999; 3 males, 3 females, 27.iii.1999; 1 male, 28.iii.1999; 1 male, 29.iii.1999; 1 male, 1 female, 30.iii.1999; 1 female, 31.iii.1999; Punjabi University, Patiala, Dist. Patiala, Punjab, 250m; 1 female, 6.iv.1999; 1 male, 17.viii.1999; 1 male, 19.viii.1999; 2 males, 24.viii.1999; 1 female, 29.viii.1999; 1 male, 27.ix.1999; 1 male, 12.x.1999; 2 males, 18.x.1999; 1 male, 21.iii.2000; 2 males, 29.iii.2000, Anandpur Sahib, Dist. Ropar, Punjab, 400 m; 2 males, 16.x.1999, Forest Rest House, Chohal, Dist. Hoshiarpur, Punjab, 400m; coll. P.C. Pathania; 3 males, 1 female, 9.xi.2001, Jammu University Campus, Dist. Jammu, Jammu and Kashmir, 350m, coll. P.C. Pathaniaand H.S. Rose.

Distribution: Maskeliya (Ceylon) (Clarke 1969); Patiala, Anandpur Sahib, Hoshiarpur(Punjab); Jammu (Jammu & Kashmir) (present work).

Host plant: Unknown

 

Subfamily: Xyloryctinae

Xyloryctinae Meyrick, 1890, Trans. R. Soc. S. Aust., 13: 23 (as Xyloryctidae).

Type-genus: Xylorycta Meyrick, 1890, Trans. R. Soc. S. Aust., 13: 25 (key), 57.

Antenna simple; forewing with CuA1 and CuA2 stalked, forewing with CuPabsent; abdomen with band of spiniform setae on posterior part of terga two to six.

 

II. Genus: Cophomantella Fletcher

Cophomantella Fletcher, 1940,Entomologist’s Rec. J. Var., 52: 17.

Vertex and frons beset with smooth scales; labial palpuslong, second segment scaled, third segment long and acute; antenna filiform, long, longer than ¾ length of forewing; abdomen with band of spiniform setae on posterior part of terga two to six, metathoracicleg with small hair like scales on hind tibia; forewing with veins R4+R5 stalked, R5 to  costaor apex, R3 absent, M2 absent, CuA1+CuA2 stalked; hindwingwith Rs+M1 stalked, Rs to costa, M1 to termen, M2 absent, M3 +CuA1 stalked, CuPpresent or vestigial; male genitalia characteristic uncussomewhat thorn-like, long or small; socii absent; gnathos long, apically pointed; saccusabsent; juxta concave or parallel distally; valvae elongate, inner surface densely setose;aedeagus long and broad; vesicawith multishaped cornutuspresent or absent; female genitalia characteristic anterior apophysesrod-like; antrum broad; ductus bursae centrally broader, sclerotized, coiled near corpus bursae; ductus seminalis open near coiling of ductus bursae; corpus bursae ovate or subovate; signumpresent.

 

3. Cophomantella pumicata(Meyrick)

Cophomantis pumicata Meyrick, 1929, Exot. Microlepid., 3: 525.

Material examined: 1 male, 22.ix.1999; 2 males, 2 females, 23.ix.1999; 3 males, 18.iv.2000; 4 males, 19.iv.2000, Forest Research Institute, Dehradun, Dist. Dehradun, Uttarakhand, 700m, coll. P.C. Pathania.

Distribution: Bombay, Poona (Clarke, 1965); Dehradun (Uttarakhand) (present work).

Host plant: Unknown.

 

4. Cophomantella juxticata Rose and Pathania

Cophomantella juxticata Rose and Pathania,2003, Pb. Univ. Res. J (Sci.), 53: 107-108.

Material examined: 1 male, 2 females, 3.iv.1999; 3 males, 4.iv.1999; 2 males, 5.iv.1999; 1 female, 11.iv.1999; 2 males, 2 females, 12.iv.1999, RenukaLake, Dist. Sirmour, Himachal Pradesh, 740m, coll. P.C. Pathania.

Host plant: Unknown.

 

5. Cophomantella lysimopa (Meyrick)

Cophomantis lysimopa Meyrick, 1933, Exot. Microlepid., 4: 357.

Material examined: 2 males, 10.ix.1998; 3 males, 2 females, 11.ix.1998; 7 males, 11.ix.1999; 5 males, 2 females, 12.ix.1999; 1 male, 14.ix.1999, University of Horticulture and Forestry, Nauni, Dist. Solan, Himachal Pradesh, 1360m; 2 females, 16.ix.1999, Dharampur, Dist. Solan, Himachal Pradesh, 1500m, coll. P.C. Pathania.

Distribution: Bombay, Mahableshwar (Clarke 1965); Nauni,Dharampur (Solan) (present work).

Host plant: Unknown.

 

6. Cophomantella myadelpha (Meyrick)

Onebala myadelpha Meyrick, 1910, J. Bombay nat. Hist. Soc., 20: 459.

Cophomantis myadelpha Clarke, 1965, Cat. Type Specimens Microlepid. BMNH described by Edward Meyrick 5: 16.

Material examined: 2 males, 5.vii.1999; 1 male, 11.vii.1999, Tanyhar, Dist. Mandi, Himachal Pradesh, 1120m, coll. P.C. Pathania.

Distribution: Khasi Hills (Assam) (Meyrick1910); Tanyhar (Himachal Pradesh) (present work).

Host plant: Unknown.

 

Subfamily: Depressariinae

Depressariinae Meyrick, 1883, Trans. ent. Soc. Lond., 1883: 123 (as Depressariidae).

Type genus: Depressaria Haworth, 1811, Lepid. Br., 505.

Forewing broad, veins CuA1 and CuA2 stalked; hindwing subquadrate, discal cell usually closed, veins Rs and M1 arising separately from cell.

 

III. Psorosticha Lower

Psorosticha Lower, 1901, Trans. R. Soc. S. Aust., 25: 91.

Type-species: Psorosticha acrolopha Lower, 1901, ibidem, 25: 92, by monotypy.

Vertex and frons decorated with erect scales; labial palpus long, recurved, second segment long, third segment small and acute; antenna long, filiform, longer than ¾ length of forewing; metathoracic leg with erect scales on hind tibia, forewing with veins R1, R2, R3 free, R4+R5 stalked, R5 to costa, M1, M2, M3 free, CuA1+CuA2 stalked; hindwing subquadrate, with vein Rs to costa, M1 to termen, M1, M2 free, M3+CuA1 stalked; male genitalia with uncus bilobed, broader at base; sociiabsent; gnathos turned towards inner surface; tegumen broad, sclerotized; valvae long and broad, setose, sacculus beset with a hook-like process; aedeagus broad; vesica with cornutus present; female genitalia characteristic papillae anales small, sparsely setose; ostium bursae open at side; ductus bursae long, weakly sclerotized; corpus bursaeglobular in shape; signum lacking.

 

7. Psorosticha zizyphi (Stainton)

Depressaria zizyphi Stainton, 1859, Trans.ent. Soc. Lond., (2) 5: 115.

Psorosticha acrolopha Lower, 1901, Trans. R. S. Aust.,25: 92.

Depressaria angusta Walsingham, 1886, in Moore, Lepid. Ceylon, 3: 508.

Material examined: 1 male, 9.viii.1998; 1 male, 12.iv.1999; 2 females, 4.ix.1999; 1 male, 5.ix.1999,  RenukaLake, Dist. Sirmour, Himachal Pradesh, 740m; 1 female, University of Horticulture and Forestry, Nauni, Dist. Solan, Himachal Pradesh, 1360m; 1 male, Forest Research Institute, Dehradun, Uttarakhand, 700m, 2 males, 12.viii.1999, Punjabi University, Patiala, Dist. Patiala, Punjab, 250m; 2 males, 23.x.2001, Forest Rest House, Dhar, Dist. Gurdaspur, 700m, coll. P.C. Pathaniaand Rachita Sood.

Distribution: India, Sri Lanka, W. Malaysia, Java, Australia (Robinson et al. 1994); Renuka,Nauni (Himachal Pradesh), Dehradun(Uttarakhand) (present work).

Host plants: Zizyphus jujuba, Citrus, Murraya koenigii(Robinson et al. 1994).

 

Subfamily: Stathmopodinae

Stathmopodinae Janse, 1917, Check-List S. Afr. Lepid.Heterocera: 190 (as Stathmopodidae).

Type genus: Stathmopoda Harrich-Schäffer, 1853, Syst. Bearbeitung Schmett. Eur., 5(14) key, 54; 1894, ibidem, 6: Microlepid; pl.9 figs 1722, included in Fletcher 1929 within the Schreckensteiniidae.

Abdominalterga with spiniform setae on posterior margin of each segment; wall of aedeaguswith ventro-distal, sclerotizedprojection in male genitalia.

 

IV. Stathmopoda Herrich-Schäffer

Stathmopoda Herrich-Schäffer, 1853, Syst.Bearbeitung Schmett. Eur., 5: 14 (key), 54; 1849, ibidem, 6: Microlepid. pl. 9 figs. 17-22.

Type-species: Phalaena pedellaLinnaeus, 1761, Fauna Suecica (Edn 2): 367, by subsequent designation by Meyrick 1914, in Wytsman, Genera Insect., 165: 10.

 

8. Stathmopoda auriferella (Walker)

Gelichia auriferella Walker, 1864, List Specimens Lepid. Insects CollnBr. Mus., 30: 1022. Stathmopoda adulatrix Meyrick, 1917, Exot. Microlepid., 2: 61.

Stathmopoda cirrhaspis Meyrick, 1922, Exot. Microlepid., 2: 585.

Stathmopoda  crocophanes Meyrick, 1897, Proc. Linn. Soc. N.S.W., 22: 324.

Stathmopoda  divisa Walsingham, 1891, Trans. ent. Soc. Lond., 1891: 121.

Stathmopoda  ischnotis Meyrick, 1897, Proc. Linn. Soc. N.S.W., 22: 324.

Stathmopoda  tharsalea Meyrick, 1914, Ann. Transvaal Mus., 4: 199.

Material examined: 2 males, 10.ix.1998, University of Horticulture and Forestry, Nauni, Dist. Solan, Himachal Pradesh, 1360m; 2 males, 2 females, 16.ix.1999, Dharampur, Dist. Solan, Himachal Pradesh, 1500m; 2 males, 17.vii.1999, Tanyhar, Dist. Mandi, Himachal Pradesh, 1120m; 1 female, 15.vi.2000, Youth Hostel, Ropar, Dist. Ropar, Punjab, coll. P.C. Pathania and Rachita sood.

Distribution: W. Africa to Australa, Thailad, W. Malaysia, Java, Philippines (Robinson et al. 1994); Nauni, Dharampur, Tanyhar (Himachal Pradesh), Ropar (Punjab) (present work). China, Korea, Japan, Sri Lanka, Russia (Far East).

Host plants: Cocos nucifera, Albizia altissiunum (Robinson et al. 1994).

 

9. Stathmopoda balanarcha Meyrick

Stathmopoda balanarcha Meyrick,1916-1923,Exot. Microlepid., 2: 461.

Material examined: 2 males, 24.iii.1998; 1 male, 2.iv.1998; 1 male, 5.ix.1998; 1 female,  15.ix.1998; 1 male, 26.ix.1999; 1 female, 5.x.1999; 1 male, 7.x.1999; 1 female, 24.x.1999; 1 male, 4.v.2000, Punjabi University, Patiala, Dist. Patiala, Punjab, 250m, coll. P.C. Pathaniaand Rachita sood.

Distribution: Assam, Shillong (Meyrick 1916-1923); Patiala (Punjab) (present work).

Host plant: Unknown 

 

Subfamily: Oecophorinae

Oecophorinae Bruand, 1850, Mem. Soc. Emul. Doubs(1) 3 (5-6): 45 (as Oecophoridae).

Type-genus: Oecophora Latreille [1796], Précis Caractéres genériques Insectes: 146.

Labialpalpus often very slender, long; abdominal terga without spiniform setae or spiniform setae in broad band when present; male genitalia with aedeagus wall without any sclerotizedprojection.

 

V. Genus: Tonica Walker

Tonica Walker, 1864, List Specimens lepid. Insects CollnBr. Mus., 29: 788.

Type-species: Tonica terasellaWalker, 1864, ibidem, 29: 788, by monotypy.

Vertex and frons studded with semi-erect scales; labial palpus small, upturned, second segment small, scaled; third segment long; antenna long, filiform, about ¾ length of forewing; abdominal terga without spiniform setae; legs with erect scales on hind tibia; forewings with a sinuous costa and scattered tufts of raised scales, vein R2 absent, R3+R4+R5 stalked, arising from a common stalk, R5 arising at the stalking of R4+R5, R4 to costa, R5 to termen, M2 absent, M3+CuA1 stalked; hindwing with Rs+M1 stalked, Rs to costa, M1 to termen, M2 absent, M3+CuA1 stalked; male genitalia characteristic uncus long; socii absent; gnathos present; vinculum U-shaped; saccus absent; valvaesmall and broad; sacculus prominent, sclerotized, dorsomedially with Y-shaped process; aedeagus broad, sclerotized,vesica with cornutus; female genitalia characteristic papillae analeslarge, setose; corpus bursaelarge, irregular in shape, sclerotized; signum present.

 

10. Tonica niviferana (Walker)

Binsitta niviferana Walker, 1864, List Specimens Lepid. Insects CollnBr. Mus., 29: 832.

Material examined: 4 males, 26.vi.1999, Norha Richard Holiday Home, Andhretta, Dist. Kangra, Himachal Pradesh, 900m, coll. P.C. Pathania.

Distribution: Dehradun, Pusa (Roonwal et al. 1964); Andhretta (Himachal Pradesh) (present work).

Host plant: Bombax malabaricum (Fletcher 1921).

 

11. Tonica zizyphi (Stainton)

Depressaria zizyphi Stainton, 1859, Trans.ent. Soc. Lond., (2) 5: 115.

Depressaria angusta Walsingham, 1886, in Moore, Lepid. Ceylon, 3: 508.

Psorosticha acrolopha Lower, 1901, Trans. R. Soc. S. Aust.,25: 92.

Material examined: 2 males, 4 females, 4.ix.1999; 2 males, 4.x.1999; 2 males, 6.x.1999; 1 female, 4.xii.1999, Renuka Lake, Dist. Sirmour, Himachal Pradesh 740m; 2 males, 12.ix.1999, University of Horticulture and Forestry, Nauni, Dist. Solan, Himachal Pradesh, 1360m; 1 female, 17.vi.1998, Dharamshala, Dist. Kangra, Himachal Pradesh, 1200m; 1 female, 21.x.1999, Youth Hostel, Ropar, Punjab, 350m, coll. P.C. Pathania.

Distribution: India, Ceylon (Fletcher 1921); Renuka, Nauni,Dharamshala (Himachal Pradesh), Ropar(Punjab) (present work).

Host plants: Citrus, zizypus and Murraya (Fletcher 1921).

 

VI. Genus: Periacma Meyrick

Periacma Meyrick, 1894, Trans.ent. Soc. Lond.: 21.

Type-species: Periacma ferialis Meyrick,1894, ibidem: 21,  by original designation.

Vertex and frons decorated with semi-erect scales; labial palpus two segmented in male, upturned, second segment exceptionally long and acute; antenna long, filiform, longer than ¾ length of forewing; legs with semi-erect scales on tibia; forewing with veins R4+R5 stalked, R5 to termen or apex, M1 and M2 free, CuA1 and CuA2 free; hindwingwith Rs to costa, M1 and M2 free, M3 and CuA1 connate, 1A+2A forked at base; male genitalia with uncuslarge, broader apically, narrowed basally, sclerotized;socii absent; gnathos with well developed ventral plate, with minute spines; tegumensmall or broad, saccus absent; valvaewith costa distinct, sclerotized,sacculus prominent with processes distally, cucullus with long, dense setae; aedeagussmall, with spine apically, coecum present, vesica without cornutus; female genitalia characteristic papillae anales large, setose; ostium bursae broad, centrally placed; ductus bursae small; corpus bursaelarge; signum present.

 

12. Periacma circumclusa Meyrick

Periacma circumclusa Meyrick, 1916-1923, Exot. Microlepid., 2: 546.

Material examined: 8 males, 16.vii.1999, Tanyhar, Dist. Mandi, Himachal Pradesh, 1120 m; 4 females, 23.x.2001, Forest Rest House, Dhar, Dist. Gurdaspur, Punjab, 700m, coll. P.C. Pathania and Rachita Sood.

Distribution: Assam, Sadiya (Meyrick 1916-1923); Tanyhar (Himachal Pradesh), Dhar(Punjab) (present work).

Host plant: Unknown.

 

13. Periacma continuata Meyrick

Periacma continuata Meyrick, 1916-1923, Exot. Microlepid., 2: 546.

Material examined: 2 males, 24.vi.1999; 2 males, 27.v.2001, Krishi Vishwavidyalaya, Palampur, Dist. Kangra, Himachal Pradesh, 700m; 2 males, 27.vi.1999, Norha Richard Holiday Home, Andhretta, Dist. Kangra, Himachal Pradesh, 900m, Coll. P.C. Pathania.

Distribution: S. India, Palni Hills (Meyrick 1916-1923); Palampur, Andhretta (Himachal Pradesh) (present work).

Host plant: Unknown

 

Discussion

Meyrick (1908) proposed the genus Apethistis with A. metoeca Meyrick as its type-species from Ceylon (Maskeliya) in the family Gelechiidae, which was transferred to the family Oecophoridae by Hodges (1978).  Out of fourteen species otherwise recorded in this genus, eight i.e., Apethistis sitiens Meyrick (southern India), A. cenchritis Meyrick,A. consummata Meyrick,A. inspersa Meyrick(Assam), A. officiosa Meyrick(Madras), A. purificata Meyrick(Sikkim), A. superans Meyrick(Kumaon) and A. insulsa(Meyrick) (Pusa, Bihar) have been captured from the respective areas of India (Gaede1937; Clarke 1965).  In fact, none of the species has so far been reported from the Shivaliksin North-West India, from where besides the type-species i.e., A. metoeca Meyrick another species i.e., A. insulsa (Meyrick) have been collected for the first time.

According to Gaede (1937) and Clarke (1965), the genus Cophomantella Fletcher is represented by fifteen species i.e., elaphopis Meyrick(Khasi Hills), lysimopa Meyrick (Bombay, Mahableshwar),myadelpha (Meyrick) (N. Coorg), osphrantica (Meyrick) (Madras, PalniHills), pumicata Meyrick(Bombay, Poona), bythota (Meyrick) (Aburi, Goldcost), eremota (Meyrick) (Ceylon), syngonarcha Meyrick(Uganda, Masaka), bifrenata Meyrick (Africa), crypsizyga Meyrick (Nyassaland), cubiculata Meyrick (Seychellen), ephanozona Meyrick (Transvaal), homogramma Meyrick (Natal) and lychnocentra Meyrick (Australian), out of which the former five species belong to India. In the present field surveys, four species have been captured  andreported.

The Oecophorid genus, Periacma Meyrick proposed on the basis of the type-species P.ferialis Meyrick by Meyrick (1894) is unique in having two segmented labial palps in the male. It is mainly distributed in the Oriental Region (Moriutiet al. 1985; Ueda & Moriuti 1996).  While reporting this genus as new to the fauna of Nepal, the latter authors could not get sufficient material as the latter species has been named and described on the basis of a lone male specimen. In the current work, the congeneric nature of the presently studied two species could not be made out on the basis of their female genitalia, as the same has been examined only for one species i.e., P. circumclusa Meyrick, yet it can be safely stated that it broadly conforms to that of P. himalayanesis Ueda & Moriuti(Ueda & Moriuti 1996).  Both the species i.e. P. himalayanesis and P. continuata  are closer to each other in view of structures such as the lamella antevaginalis, the ductus bursae and the ductus  seminalis which originates 1/3rd posteriorlyfrom the ductus bursae in the female genitalia.

 

Referemces

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