202 Records of the Indian Museum. [Vol. III. 



cells of the wing disc broad 



and venation open, net-like Synthochrysa, gen. nov. 



Type H. stigma, Girard. 

 bb. The first series of gradate 



veins parallels the radial 



sector for much of its length 



and anteriorly joins the 



second series; all cells of 



the wing disc and outer 



margins are narrowl}^ trans- 

 versely linear . . . . Apochrysa. 

 aa. Of the cells in the basal part 



of the main fork of the 



median vein the third is 



differentiated, appearing to 



be transversely or obliquel}" 



divided. 



b. Apparently about equally 



divided . . . . Nothochrysa. 



bb. Very unequally and obliquely 

 divided. 



c. Gradate veins distributed irre- 



gularly over the wing disc, 

 not in regular series. Basal 

 segment of the antennae 

 enormousl}^ enlarged . . Tumeochrysa. 



cc. Cross- veins of the fore wing 

 forming two rather regular 

 gradate series. 



d. Basal part of the costal space 



narrow, gradually widened 

 towards the middle of the 

 wing. 



e. With a single gradate series in 



the hind wing . . . . Eremochrysa. 



ee. With two gradate series in the 



hind wing . . . . Chrysopa. 



dd. Costal space of the fore wing 



suddenly and greatly dilated Ancylopteryx, 



Nothochrysa robusta, sp. nov, 



A single female specimen (the type) from Sibsagar, Assam 

 (5. E. Peal) (Reg. No. -^F), and a single male that I take to belong 

 to the same species, from Darrang, western base of Dafla Hills, 

 also in Assam {Godwin- Austen). 



lycngth of female 19 mm. Antennae 16 mm. additional. 

 Expanse of wings 62 mm. 



Colour tawny yellow, including the legs; the top of the thorax 

 and the eyes with coppery reflections. Antennae brownish, paler 



