Water striders, the genus Cylindrostethus Mayr (Insecta: Heteroptera: Gerridae) from India with a new record

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E. Eyarin Jehamalar
Kailash Chandra
G. Srinivasan


The genus Cylindrostethus Mayr, 1865 from India is studied.  Prior to this study C. productus (Spinola, 1837) and C. scrutator (Kirkaldy, 1899) of Cylindrostethus were known from India.  The record of C. scrutator (Kirkaldy, 1899) from India is doubtful.  Study of gerrid specimens from Andaman Islands revealed one more additional species, C. costalis costalis Schmidt, 1915 new to Indian fauna.  So, presently two species of this genus are known from India namely C. costalis costalis and C. productus, both belonging to the C. costalis species group (Polhemus 1994).  A detailed study has been made of the male and female genitalia of Cylindrostethus known from India. 


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E. Eyarin Jehamalar, Zoological Survey of India, Prani Vigyan Bhawan, Block M, New Alipore, Kolkata, West Bengal 700053, India

Zoological Survey of India

Kailash Chandra, Zoological Survey of India, Prani Vigyan Bhawan, Block M, New Alipore, Kolkata, West Bengal 700053, India


G. Srinivasan, Zoological Survey of India, Marine Biology Regional Centre, Santhome High Road, Chennai, Tamil Nadu 600028, India



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