a75 



OUR ANTS. 



By Robert Charles Wroughton, f.e.s., Deputy Conservator 

 of Forests, Poona. 

 Part II. 

 With Plates C and D. 

 {Read before the Bombay Natural History Society, 15th Ajxril, 1892.) 



DORYLID^. 



Gen. 26. Dorylus (Fab.). 

 Pedicle with one knot; antennae 12-jointed. 

 104. D. juvenculus (Shuck.). 

 Poona Dists. ( ^ ). 



Bombay, through H. M. Phipson {$ ). 

 Among the Dorylidce the various sex-forms are so astonishingly 

 different, and, owing to their subterranean and nocturnal habits, have 

 so seldom been taken together, that the described species contain only 6 

 or 5 , never both ; for a long time indeed the § Dorylus was placed in a 

 separate genus, Typhlopone. Jerdon and others, however, took Dorylus 

 and Typhlopone in the same nest, and it is now generally admitted that 

 they are one genus. Yet another genus Dickthadia, which contains 

 two species (one specimen of each species has been taken) of most 

 extraordinary looking apterous insects, is conjectured to be the 9 

 of Borylus-Typhlopone. Until the c^ and § can again be taken 

 together and examined by an expert, they must remain as at 

 present different species. D. juvenculus is the commonest species; 

 he is well over an inch long, a very large part being abdomen, which 

 is so unwieldy that it is not ' carried ' but ' trailed ' by its owner. 

 They come freely to the light at night. E. H. A., in his " Tribes on 

 my Frontier ,'' describes a * flight ' of this insect which emerged in 

 his bath-room. These flights, I have reason to believe, occur frequently 

 in Bombay, and I would ask members, should they be present at such 

 a flight, that they will secui'e and send me some specimens of the S 

 together with the 5 which invariably come out to see them off. 

 This species is also found on the Mediterranean littoral. 

 105. D. loiu/icornis (Shuck.). 

 Poona Dists. { S ). 

 Calcutta G. A. J. Rothney ( d ). 



