The spermatocyte chromosomes of Anax immaculifrons Rambur from India (Anisoptera: Aeshnidae)

Three mature specimens were collected near the Hathibarkala Estate, Dehra Dun, Uttar Pradesh, September 3, 1978. They were identified on the basis of the paratypes preserved in the reference collection of the Entomology Branch, Forest Research Institute & Colleges, Dehra Dun, India, and are deposited, along with the carbol-fuchsin stained and Euparal mounted slides, in the collection of the second author. n $ = 14, m. — At m I. the bivalents are almost uniform in magnitude save for the very minute m. The latter is slightly smaller or similar in size to X. At diakinesis a single chiasma occurs per bivalent.