LOCUSTIDJE. 185 



55. GRYLLACBIS VENOSA. 



Fcem. Rufescente fulva ; prothoraeis sulcis duobns angulosis longitudin- 

 alibus ; oviductus subarcuatus, abdomine tequilongus ; pedes bre- 

 viusculi; alee albidce ; alee anticce nigro venosce, venulis transversis 

 plurimis bene determinatis ; alee post icee fusco venosce. 



Female. Reddish tawny, smooth, shining. Head very little broader 

 than the prothorax, prominent and not furrowed between the sockets of the 

 antennae. Eyes prominent. Fifth joint of the maxillary palpi sub- 

 clavate, somewhat longer than the fourth ; third joint of the labial palpi 

 clavate. Prothorax transverse, with a zigzag furrow on each side; fore 

 border and hind border slightly reflexed. Oviduct slightly curved, as long 

 as the abdomen. Legs rather short; hind femora with nine minute spines 

 on the outer side and with twelve on the inner side ; four anterior tibia? 

 with rather shorter teeth than those of the more typical species ; hind tibiae 

 with four rather short spines on each side and with two apical spines. 

 Wings whitish. Fore wings as long as the hind wings ; veins black ; twelve 

 longitudinal veins, a few of them forked; transverse sectors very numerous, 

 nearly all regular. Hind wings with brown veins; eight lines of transverse 

 sectors, those towards the base irregular. Length of the body 13 lines; of 

 the wings 27 lines. 



The more regular and less oblique transverse sectors distinguish it 

 from most species of the genus. 



Sarawak. In Mr. Saunders' collection. 



56. GRYLLACBIS GRACILIS. 



Mas. Pallide lutea, gracilis ; caput prothorace vix iatius, inter oculos 

 subprominulum, vertice piceo bimaculato ; palporum articulus 5us 

 apice piceus et incrassatus ; prothorax sulcis duobus obliquis, lituris 

 duabus nig r is fere V-formibus ; pedes sat graciles^femorlbus posticis 

 biseriatim quadrispinosis, tibiis posticis biseriatim sexspinosis ; alee 

 diaphance, corpore duplo longiores, venis pallide testaceis, apud costam 

 basifulvis. Fcem. Vertex macula trans versa, fascia arcuata inter- 

 rupta guttisque duabus anterioribus nigris ; oviductus rectus, corpore 

 vix brevior ; alee corpore paullo longiores. 



Male. Pale luteous, slender, smooth, shining. Head hardly broader 

 than the prothorax, slightly prominent between the eyes ; vertex with a 

 piceous spot on each side. Eyes piceous, prominent. Palpi pale yellow ; 

 fourth joint longer than the third; fifth hardly shorter than the fourth, 

 piceous and incrassated at the tip. Prothorax transverse, with an oblique 

 furrow and a black nearly V-shaped mark on each side ; borders slightly 

 reflexed. Legs rather slender, moderately long; hind femora black 

 beneath towards the tips, with four minute black spines on each side 

 beneath ; hind tibiae with six minute black-tipped spines on each side : 

 tarsi tawny, broad. Wings pellucid, about twice the length of the body; 

 veins pale testaceous. Fore wings with a slight testaceous tinge in the 



2B 



