88 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Maxillary palpi rather long, 4-joiiite(l; labial palpi very short, 2- 

 joiiited. 



jNlaudibles truncate at tips and o-dentate, the outer two conical, 

 equal ; the inner smaller, blunt. 



Thorax subovate; i)rothorax narrowed before and impressed at sides, 

 scarcely as long' as the mesonotum, the anterior margin ridged; meso- 

 notum broader than long, with 2 distinct furrows converging pos- 

 teriorly; metathorax short, ronnded behind, scarcely sculptured or 

 indistinctly areolated. 



Front wings with a moderate sized lanceolate stigma, two basal 

 cells, and an angulated stigmal vein; sometimes one or two discoidal 

 cells are more or less visible, but usually they are wanting or subob- 

 solete. 



Abdomen subovate or oblong oval, ])etiolate, the second and third 

 segments nearly equal. 



Legs moderate; the hind pair the longest, femora obclavate, the 

 tibia? subclavate, the tarsi usually long and slender. 



I am strongly of the opinion that this genus, known only in the male 

 sex, will yet prove to be the oi)posite sex of Gonatopns. It is reared 

 from T)/i)hloci/h(r and other jassids. 



The four species in our fauna nmy be distinguished by the aid ol" the 

 following table: 



TABLE OF SPECIES. 



Ilind logs AMTy long, tbo tibin- very long. 

 Hind tarsi longer than their tibia'. 



Antenna' very long, the flagellar joints nearly 5 times as long as thick. 



Marginal cell open at tip L. LoxtuTARSis, sp. iiov. 



Marginal cell completely closed L. texanus, sp. nov. 



Hind legs not especially long, the tibi.T not long. 



AnteiuKv not longer than the thorax, the flagellar joints lu'vermore than 3 times 

 as long as thick. 



Pedicel and scajte eqnal in length L. nasuti'S Ashni. 



Pedicel twice as long as the scape L. TViMii.ocvn.E, sp. nov. 



Labeo longitarsis sp. nov. 



S. Length 2.C""". Black, shining; head finely closely punctate, 

 the occiput deeply emarginate; eyes large, rouiuled, pubescent. Man- 

 dibles and i)alpi rufous. Antenna' lO-jointed, long, setaceous, pubes- 

 cent; first and last flagellar joints about of an equal length, longer 

 than the scape, the remaining slightly shorter, fcmr tinu^s as long as 

 thick. Prothorax scarcely visible from aboxe; mesonotum with two 

 distinct furrows, converging posteriorly; scutellum with a transverse 

 impressed line at l)ase; metatliorax hmger than high, roundedly trun- 

 cate bchiiul, finely closely punctate, and with a. inedian carina. AVings 

 hyaline, pubescent, the venation distinct, brown; tlie stigma long 



