9O ENTOMOLOGICAL NEWS. [Mar., '06 



close to the anterior margin obsolete, between the sulcations compresso- 

 cristate, but the small crest not elevated above the eyes ; on either side 

 of the base of crest presenting a small tumose eminence ; posteriorly the 

 median carina becomes interrupted, being undulate-subserrulate ; an- 

 terior carince behind the front margin abbreviated but distinct. Elytra 

 oblong subacuminate toward the apex ; wings perfectly explicate, ex- 

 tended backward little beyond the apex of pronotal process. Posterior 

 femora above strongly carinate, provided with a small secondary denticle 

 just above the strongly prominent femoral lobe ; posterior tibiae with 

 both margins sparingly armed with spines ; the first articles of the pos- 

 terior tarsus having the pulvilli of gradually increasing length, from the 

 first to the third. 



Total length, 13 mm.; pronotum, 11.5 mm.; posterior femora, 5.5 mm. 



One female from Callanga, Peru, S. Am. In my collection. 



STENODORSUS gen. nov. 



Characters : Body granulose rugulose. Head not exserted 

 or elevated ; face little oblique ; antennae slender filiform, in- 

 serted between the lower part of the eyes ; ocelli placed bet- 

 ween the middle of the eyes ; eyes moderately small, little 

 elevated but not prominent, viewed from above subreniform, 

 in profile conoidal. Vertex anteriorly truncate, subequal in 

 breadth to one of the eyes, middle indistinctly carinate anteri- 

 orly ; frontal costa narrowly sulcate, the rami almost imper- 

 ceptibly widening forward to the median ocellus ; maxillary 

 palpi slender, the apical article slightly depresso-ampliate. 

 Pronotum anteriorly truncate, posteriorly acute, strongly ex- 

 tended backward beyond the apex of posterior femora ; dorsum 

 very narrow between the shoulders, somewhat flattened ; 

 humeral angles very widely obtuse, the scapular area clearly 

 defined by the presence of humero-apical carinse ; posterior 

 angles of lateral lobes subobtusely rounded. Elytra oblong ; 

 wings perfectly explicate. Superior or elytral sinus much 

 shallower than the inferior sinus. Femoral margins subeutire ; 

 posterior femora slender ; genicular and antegenicular den- 

 ticles small, acute, margins of posterior tarsi minutely serrate 

 and sparingly armed with small spines. First and third 

 articles of posterior tarsi equal in length. 



This genus resembles Allotettix, but differs from that genus in 

 the narrower body, the insertion of the antennae between the 

 ventral part of the eyes, and the situation of the superior ocelli 

 between the middle of the eyes. 



