176 ONYCHIA. 



than broad ; cubital cellules incomplete or absent ; apex 

 of the wings not fringed. 



Onychia is found in America and India. 



We find the name of Onychia first mentioned by 

 Westwood in 1833 (Loud, Mag., vi, 494), but it was 

 not defined there, and Gynips ediog aster, Pz., was 

 mentioned, on Haliday's authority, as the type. In 

 1836 (Ent. Mag., iii, 162) it was defined by Walker 

 thus : Antennae mari 14-articulatge corporis longitu- 

 dine, fern. 13-articulatse paullo breviores : thorax 

 obscurus, scaber ; scutellum sulcatum, productum, 

 acuminatum ; petiolus brevis, gracilis : abdomen 

 laeve,nitidum; segmentumprimum reliqua omninoobte- 

 gens : alas mediocres ; nervi spurii fere obsoleti. 

 As type he gives Evania ediogaster, Rossi. In West- 

 wood's Introduction (ii, Ap., 56) the genus is charac- 

 terised by Haliday himself as follows : Abdomen with 

 the third segment very large, concealing all the poste- 

 rior ones ; petiole very short, scutellum channelled 

 throughout ; antennae filiform, 14-jointed <? , 13 ? ; 

 cubital areolets three, subcostal nervure not continued 

 to the rib. 



It is now clear that Walker's Onychia is not the 

 same as Haliday's, as is shown by the words 

 " scutellum acuminatum." There is no satisfactory 

 evidence that Gynips ediogaster is British. It is given 

 as British by Curtis (Guide, p. 126); but the Rev, 

 T. A. Marshall states (Ent. Ann., 1874, p. 120) that it 

 was not in his collection. I cannot make out with any 

 degree of certainty on what species Walker grounded 

 his Onychia; Haliday (West., Int., App., p. 56) states 

 that his Onychia had not as its type ediogaster, the 

 type being a species indicated (1. c.) as biusta. I have 

 not been able to trace this type ; the Rev. T. A. Mar- 

 shall (Ent. Ann., 1874, p. 120) says of it, " I believe 

 I have one in bad condition ; it belongs to Foerster's 

 Homolaspis,"* but if so, then it disagrees with one of 



* Unless there is some mistake about the specimen, this appears to 

 be Anolytus rufipes. Omolaspis is therefore doubtfully British, 



