MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 271 



This geiiu.s and AmhlyaspiH are often confused together. If in my 

 definition of Ambhjaspis I liave included both Leptaris and Amhlyaspis, 

 then this genus must be known as Ceratacis Thomson. 



TABLE OF 8PEC1ES. 



FEMALK.S. 



Mesonotal furrows wanting or only indicated jiosteriorly 2 



Mesonotal furrows complete, distinct. 



Head rugose, the thorax minutely punctate, a distinct line on shoulders. 

 Auteuuie and front legs brownish-yellow, club brown black. 



L. UUGICEPS, sp. uov. 



Legs brownisli-piceous, the trochanters, base of tibi.e and tarsi honey-yellow. 



Head closely, finely punctate^ the thorax minutely punccate, no line on shoulders. 



Antenna', brownish-yellow, club brown L. itxctatus, sp. uov. 



Antenna' wholly brown-black L. I'LOKIDAxus, sp. nov. 



2. Frons snu)oth or microscopicallj- punctate 3 



Frons transversely striated; thorax smootli. 



Antenna; aud legs brownish-yellow or i)ale rufous, club l^rown. 



L. STKIATIFKOXS, Sp. noV. 



3. Frons microscopically punctate 4 



Frons smooth; coxie black. 



Abdomen twice the length of thorax, subcompressed. 



L. LONGIVENTRIS, sp. nov. 



Abdomen not longer than the thorax, not compressed. 



L, iJin;vivENTKis, sp. nov. 



4. Cox;e black. 



Legs black or brownish- piceous, trochanters, knees, tips of tibia', and tarsi 



yellow L. c ynii'IPHILUS Ashm. 



Coxie brownish-yellow; legs and antenna', excejit club, yellow. 



L. 1' LAVicoKNis. sp. nov. 



MALES. 



Mesonotal furrows wanting or only indicated posteriorly 2 



Mesonotal furrows distinct, complete. 



Head rugose, thorax minutely punctate L. rcgiceps, sp. nov. 



Head finely punctate, thorax minutely punctate. 

 Antennte and the middle legs brownish-yellow, the hind legs brownish- 



piceous L. PLNCTATus, sp. nov. 



Head and thorax smooth, shining, the parapsidal furrows delicate. 

 Antenna' black ; legs, except trochanters and tarsi, fuscous. 



L. ELORIDANUS, Sp. UOV. 



2. Frons smooth; cox;p black. 

 Legs browuish-piceous. 



Scape aud funicle brownish-yellow, the second fnniclar joint swollen. 



L. BKEVIVEXTIJIS, Sp. UOV. 



Legs brownish-yellow or yellow. 



Flagellum brown-black, the club joints 2i or 3 times as long as thick, much 



narrowed basally L. cvxiPii'Hius Ashm. 



Flagellum yellow, the club joints twice as long as thick, cylindric. 



L. FLAVICOKXIS, sp. uov. 



Frons distinctly punctate. 



Scape, pedicel, aud legs yellow L. prxcTiCEP.s, sp. nov. 



Frons microscopically punctate; coxie black. 



Antenna' aud legs, except anterior tibia> aud tarsi, which are honey-yellow, 

 browuish-piceous or fuscous L. rr bescens, sp. nov. 



