CEOCISA. 517 



parallel to the curve of the 2nd transverse cubital nervure ; the 

 2nd and 8rd cubital cells each receive a recurrent nervure past 

 the middle. Abdomen conical, sharply acute at apex. 



So far as I know, the Indian species of Crocisa are parasitic in 

 the nests of Aniliophora only. Though comparatively small, the 

 species are very conspicuous even on the wing, from the blue or 

 white banding or spotting of the abdomen. 



Key to the Sjjecies. 



A. Fore wing- fuscous, with a few hyaline spots 



on disc. 



a. Scutellum posteriorly with a shallow .~^- 



shaped emargination ; pubescence bhie . . C. emarfjinata, p. 517. 



b. ScuteUum posteriorly with a deep A-shaped 



emargiuation ; pubescence white. 

 a! . Lateral spot on 2nd abdominal segment 



simple, with no prolongation anteriorly, C. histrio, p. 518. 

 b' . Lateral spot on 2nd abdominal segment 



with an L-sbaped branch prolonged 



anteriorly C, ramosa, p. 518. 



c. Scutellum posteriorly with a regular arched 



and wide emargiuation C. minuta, p. 519. 



B. Fore wing subhyaline, apical margin broadly 



fuscous C. massu7'u, p. 519. 



912. Crocisa emarginata, Lej^el. Hym. ii, p. 449, 5 S ■ 



Crocisa decora, Smith, Trans. Ent. Soc. n. s. ii, 1852, p. 41, $ . 

 Crocisa elegans, S7nith {nee Mocsary), Neio Sp. Kym. B. M. p. 107, 



?• 

 ? Crocisa himalavensis. Had. Bull. Soc. ]\at. Mosc. n, s. vii, 1894, 



p. 171. 



2 . Head, thorax, and abdomen finely and closely punctured, 

 each puncture, except on the front immediately below the ocelli, 

 emitting a decumbent short hair, often in parts abraded ; clypeus 

 slightly convex, the antennal ridge sometimes well developed, some- 

 times small ; the scutellum posteriorly with a -^-shaped incision, 

 sometimes deeper, sometimes shallower, but never A-shaped as in 



C. histrio. Black ; the clypeus, the face on each side between and 

 above the bases of the antennae, the occiput and cheeks, an ill- 

 defined spot on each side of the pronotum spreading on to the 

 mesonotum, a medial abbreviated longitudinal streak on the latter, 

 a spot on each side of it, a bent line over the tegulae (sometimes 

 reduced to a spot) curving round to but not meeting at the apex 

 of the mesonotum, a medial spot above the emargiuation at the 

 apex of the scutellum, or a spot on each side of the emargiuation 

 (these spots in the majority of specimens are absent;, a large 

 square ill-defined patch under and a little before the base of the 

 wings, a stripe on each of the tibiae and tarsi above (the latter stripes 

 very often wanting), two broad lateral spots, emarginate within, 

 on the basal abdominal segment, and elongate macular on each 



