CHETSOGONA. 431 



Key to the Genera*. 



a. First discoldal cell in fore wing absent or 



incomplete Chiivsogona, p. 4;J1. 



b. First discoidal cell in lore wiii^' present, 



complete. 

 a'. Of large size, f\ice elongate; sides f)f head 

 below eyes subparallel and prolonged into 

 somewhat of a beak shape : apical margin 



of abdomen dentate .Stii.bum, p. 4'^>2. 



b' . Size variable, sides of head not prolonged 

 into a beak shape ; apical margin of abdo- 

 men entire or dentate or serrate. 

 «-. Apical margin of abdomen with not 



more than 6 teeth Chry.sis, p. 4-"!4. 



V^. Apical margin of abdomen serrate, with 



numerous uneven teeth Euchrceus, p. Ai^A. 



Genus CHRYSOGONA. 



Chrv.sogona, Fiirsfer, Verh. nat. l^er.jyreuss. RheinL x(185;3), p. 327. 

 Chrysis, pt., iJahlb. Hym. Eur. ii (1854), p. 187, pi. x, fig. lOG. 



Type, C. f/racillima, Forst,, from Europe. 



Range. Both hemispheres. 



$ 6' Very close to and resembhng the genus Chri/sis, Linn. 

 Differs chiefly in the neuratioii ot" the fore wing, in which the 

 discoidal cells are entirely wanting, or occasionally the 1st discoidal 

 is outlined faintly with brown lines ; the costal and medial cells 

 only are complete, the former very narrow : the radial cell is 

 always open at the apex, sometimes very incomplete ; the 1st and 

 2nd submedial cells incomplete, the rest of the cells entirely 

 obsolete ; the legs and tarsi are normally constructed, the clan's 

 simple. Abdomen very nearly as in Chrysis ; the transverse 

 auteapical series of fovese on the 3rd segment very distinct in the 

 Indian species. Only one species has so far been recorded from 

 within our limits. 



512. Chrysogona pumila, Kluy, Symh. I'hysk. pt. 5 (1845) Ins., 

 pi. 45, tig. 13 ; Mocs. Mm'i. C'hrys. 1889, p. iS^,, pi. i, hg. 38. 



Chrysis assimilis, Dahlb. (nee Spinola), Hym. Uiir. ii (18o4), p. 201. 



Chrysogona assimilis, du liuyss. Jour. Bomb. JV. II. iSoc. x (1890), 

 p. 467, pi. ii, tig. 8. 



$ . Greenish blue, the discs of the 2nd and lird abdominal 

 segments darker blue, on the 2nd almost black ; antennte dusky 



* Founded on a table of genera bv du liuyssoii in the Jour. Bomb. IS'. H 

 See. X (1896), p. 467. 



