HEXICOSPILUS. 381 



points ; and the sturap of the cubital nervure, found well developed 

 in OpJiion, is absent. In some cases the smooth space is present 

 without having horny points in it, or they are very faint. In either 

 case I believe it will be found that the base of the cubital nervure 

 is thickened, which is not the case with Ophion, sensu sti: In 

 view of the great similarity of the species of Ophion, it seems to 

 me desirable to adopt Etiicospilus as a distinct genus. Species 

 belonging to it are found in all parts of the world." Later, how- 

 ever (op. cit. 1899, p. 102), he sinks it as a mere submenus of 

 Ophion, from which he regards it as differing in the thickened 

 basal radial abscissa and the corneous plates of the glabrous alar 

 area, or it would be more correct to sav, in the mere possession of 

 such a glabrous area, with or without corneous spots. 



Table of Specie*. 



1 ('2) Cubital cell with four corneous 



marks ceylonicus, Cam., p. 382. 



2 (1) Cubital cell with at most two 



corneous marks. 



3 (18) Cubital cell with two corneous 



marks.* 



4 (9) Base of radius distinctly deflexed 



and slightly thickened. 



5 (8) Mesopleuroeandscutellunistriate; 



bead flavous throughout. 

 C . (7) Stigma, costa, and often sternum 



black nnivittatus, Brul., p. 383. 



7 (6) Stigma and sternum bright 



fulvous flavicaput, Morl.,f p. 384. 



8 (5) Mesopleurse and scutellum finely 



punctate ; orbits flavous rufus, Tosq., p. 385. 



9 (4) Base of radius not deflexed, though 



usually thickened. 



10 (11) Alar corneous marks connected 



by a corneous line unilineatus, Cam., p. 386. 



11 (10) Alar corneous marks with no 



corneous connecting line. 



12 (13) Mesonotum and most of abdomen 



nigrescent or black hariolus, Mori., p. 387. 



13 (12) Mesonotum and most or whole of 



abdomen testaceous. 



14 (17) Third discoidal cell short and 



broad ; stigma not black. 



15 (16) Basal nervure not continuous 



through the median nervure . . reticulatus, Cam., p. 388. 

 1G (15) Basal nervure continuous through 



the median merdarius, Gray., p. 389. 



17 (14) Third discoidal cell normal ; 



stigma black mclanocarpus, Cam., p. 390. 



* These are sometimes absent in H. univittatus, Brul. 



t H.pungens, Smith, differs from this species in not having its discoidal 

 nervure distinctly geniculate, &c. 



