LOCUSTID*;. 437 



Female. Body stout, tawny. Head smooth; fore part punctured ; 

 two little keels between the sockets of the antenna? converging and con- 

 nected near the lanceolate part of the front. Eyes round, prominent. 

 Prolhorax mughly tuberculate, with an impressed longitudinal line, which 

 is between the two strongly impressed transverse lines; of these the hinder 

 one is curved; fore border and sides nearly straight; hind border rounded, 

 its tubercles prolonged into spines. Oviduct curved, a little longer than 

 the abdomen. Legs ihick, punctured, with strong spines, those on the 

 hind femora especially large. Fore wings as long as the abdomen, with 

 large irregular areolets; veins blackish. Length of the body 15 lines. 



The hind tibia? are shorter and thicker than those of P. tuberculata, 

 and have stouter spines. 



a. Ega. From Mr. Bates' collection. 



Genus 133. SEXAVA. 



Foem. Corpus longum, sat gracile. Caput glabrum, longiusculum, 

 cornu antico porrecto brevi conico sulcato; frons suliobliqua, transverse et 

 subtilissime striata. Oculi fere rolundi, valde globosi. Palporum articulus 

 3us 4o valde longior ; 5us fere linearis, 3o vix longior. Antenna? graciles, 

 longae ; arliculus lus longus, crassus. Prothorax subtiliter rugulosus, 

 lateribus subrotundatis, margine postico fere recto lateribus incisis. Ovi- 

 ductus arcuatus, abdominis trienti aequilongus. Pedes longiusculi, sat 

 graciles, femoribus anticis uniseriatitn spinosis, femoribus intermediis iner- 

 mibus, femoribus posticis et libiis quatuor anterioribus biseriatim spinosis, 

 tibiis posticis quadriseriatim spinosis. Ala? abdomen longe superantes. 



Female. Body long, rather slender. Head smooth, rather long, with 

 a short conical horizontal furrowed horn between the antennae; front 

 slightly oblique, transversely and very finely striated. Eyes nearly round, 

 very prominent. Third joint of the maxillary palpi much longer than the 

 fourth ; fifth hardly clavate, hardly longer than the third. Antenna? 

 slender, very much longer than the body; first joint long, very stout. 

 Prothorax finely rugulose, with two transverse furrows, between which there 

 are two short oblique furrows and a short longitudinal furrow ; sides slightly 

 rounded ; hind border excavated on each side, nearly straight in the middle. 

 Oviduct curved upward, about one-third of the length of the abdomen. 

 Legs rather long and slender; fore femora with three minute spines beneath 

 near the tips; hind femora with eight minute spines on the outer side and 

 with eleven on the inner side; fore tibia? and middle tibia? with two rows 

 of eight minute spines; hind tibia? with two rows of numerous rather long 

 and stout spines above and with two rows of minute spines beneath. 

 Wings extending much beyond the abdomen. Fore wings thickly and 

 irregularly reticulated. 



1. SEXAVA LANCEOLATA. 



Fcem. Testacea ; abdomen subtus fulvum ; alee anticce viridi submar- 

 ginatce ; alee posticce diaphance. Var. /3. Prothorax viridis ; abdo- 

 men fuscum, segmentorum marginibus posticis maculisque lateralibus 

 testaceis ; alte anticce fulva. 



Locusta lanceolata ? Stall. Saut. et Grill, pi. 10, f. 39, 40. 



