234 ME. R. m'lachla:n" ow kew species etc. oe neitropteea. 



simum, rugulosum, testaceo-fuscum, circum ocellos marginemque 

 anteriorem nigrum ; mandibulis valde elongatis, concoloribus, prater 

 apices obscuriores ; palpis nigris ; ocellis flavis. Prothorax brevis, fere 

 quadratus, supra planiusculus; testaceo-fuscus, flavo maculatus, postice 

 impressus, rugosus. Mesothorax metatboraxque prothorace vix angus- 

 tiores, castaneo-fusei. Alse cinereo-hyalinse : antiese punctis plurimis 

 albis; areacostali pallidiore,apicem versus infuscata; area subcostali fere 

 omnino infuscata ; venulis costalibus albidis, nigro terminatis, apicem 

 versus omnino nigris ; venulis transversalibus nigris ; venis longitudi- 

 nalibus testaceis : posticse vix pallidiores ; venulis costalibus non- 

 nuUisque transversalibus nigris, reliquis testaceis. Pedes flavido- 

 brunnei, tarsis genibusque intense fuscis. Abdomen flavidum ; ap- 

 pendicibus elongatis pilosiuseulis ; superioribus apicibus approximatis, 

 dilatatis, abrupte deorsum inflectis ; inferioribus dimidio et ultra bre- 

 vioribus, cylindricis, sursum incurvatis ( c? ). Long. corp. sine mandib. 

 et append. 1" 10"'; long, mandib. 1" 8'"; exp. alar. 5" 4'". 

 Hab. Texas. In collect, auct. 



Pale brownish testaceous. AntenneB as long as, or longer than, the body, 

 very thick, brown, the sutiu-es of the joints, and the 3 or 4 terminal 

 joints, black ; basal joints very greatly inflated, bulbous ; each of the 

 other joints, excepting those in the basal fourth, furnished beneath 

 with a short straight triangular tooth ; towards the base a commence- 

 ment of this structure is seen in the presence of a tubei'cle only. Head 

 very broad, the tooth at the posterior angles acute ; above flattened, 

 finely rugose, posteriorly with three impressed coarsely reticulated 

 spaces ; deep cavities in front before the base of each antenna ; colour 

 pale brownish testaceous, blackish round the ocelli, and narrowly 

 margined with blackish in front ; palpi black ; ocelli yellow ; eyes 

 brown ; mandibles very long, almost equalling the body, sulcated at 

 the base above, rugose, the roughness occasioned by numerous closely 

 placed transverse series of minute tubercles, the inner edge with small 

 blackish tubercles, colour the same as the head, but darker at the tips. 

 Prothorax nearly quadrate, scarcely longer than broad, hardly per- 

 ceptibly dilated behind ; brownish-testaceous, the anterior margin 

 narrowly blackish ; surface uneven, a lanceolate median longitudinal 

 impression behind, and several raised spaces on each side, which are 

 rather paler than the ground-colour. Meso- and metathorax nearly 

 equal, slightly narrower than the hinder edge of the prothorax, brown. 

 Wings elongate, cinereo-hyaline : anterior wings with numerous small 

 white dots in the cellules ; the pterostigmatical region dark fuscous ; 

 the subcostal area dark fuscous, with paler spaces ; the first 3 or 4 

 costal veinlets and those towards the apex altogether blackish, the 

 rest yellowish white, black at each end; all the transverse discal vein- 

 lets black ; longitudinal veins testaceous : posterior wings scarcely 

 paler than the anterior ; the subcostal area infuscated ; costal veinlets, 

 and some of the discal, black. Legs pale brown, the tarsi, knees. 



