2-10 MB. E. m'lAOULAN ON A SYSTEMATIC 



vitrese ; striga interrupta in dimidio apicali, punctisque nonnuUia 

 discalibus basin versus, fuscis; pterostigmate albido, intus fusco- 

 notato; venis venulisque plerumque flavis, nonnullis nigris ($)• 

 Long. Corp. 14'"; exp. alar, antic. 47'", postic. 43"'. 



-f- Genus Idhioerus, n. g. 



Wings elongate, rather narrow, slightly dilated in the middle, 

 apex subacute ; anterior pair with a semicircular excision at 

 the extreme base of the inner margin, followed by a small ob- 

 tusely angular dilatation, and afterwards shallowly excised, 

 not appendiculate : network moderately open. 



Antenna shorter than the wings, straiglit ; club very large, 

 broadly and shortly pyriform ; a dense tuft of hairs on the face 

 and between the antennae. 



Thorax very villose. 



Abdomen shorter than the Avings, moderately stout. 



Legs with the spurs of the posterior tibias scarcely equalling the 

 first two tarsal joints. 



Bah. North India. 



Allied to Oormodes, but differing from it in the form of the 



wings, especially at the basal portion of the inner margin, and in 



the longer and loss robust abdomen. 



Species. 



1. I. DECREPiTus, Walker. (Ascal. decrepitus. Walk. Trans. Ent. 

 Soc. Land. ser. 2, vol. v. p. 197-) Frons vertexque cinereo-vil- 

 losa ; pilis inter antennas nigris. Antennas pallide fiavse, nigro- 

 cincta) ; articulo basali clavaqi\e nigris. Thorax niger, antice flavo- 

 varius, supra in medio fusco-villosus, utrinque et infra cinereo-vil- 

 losus. Pedes fusci ; tibiis late flavo-bicinctis, nigro-birsutis ; tarsis 

 nigris, articulo basali ad basin testaceo; unguiculis calcaribusque 

 rufis. Abdomen nigrum, pauUo cinereo-pilosum ; segmentis duobus 

 basalibus supra testaceo-maculatis. Alte vitrei; venis venidisque 

 nigris, nonnullis nigro-marginatis, flavo-interruptis ; pterostigmate 

 brunnescente, nigro-venato. Long. corp. 12-15'"; exp. alar, antic. 

 32-40'". 

 I have examples from North India, taken in May and June by 



Capt. A. M. Lang, E.E. 



"Walker could not have observed the entire eyes, or he would 



never have indicated (I.e.) that the species belongs to the group 



of Ogcogaster (tessellatus, Sec), with which it has no affinity 



whatever. 



