MONOGKAPU OF THE NORTH AMERICAN PliOCTOTKYl'ID.E. 271 



This geuus ami Amblyaspi>i are often coufused together. If iu my 

 detiuitioii of AmbbiuspiH I have inchided both Leptaris and Amblyaispitf^ 

 theu thiiS geuus must be kiiowu as Ceratavis Thomson. 



TABLE OF SPECIES. 



FEMALES, 



Mesonotal furrows ■wanting or only iiuUcuted iiosteriorly 2 



MesoUotal furrows completi', disstinct. 

 Head rugose, the thorax miiiiitt'ly jtiiuctatc, a distinct line on shoulders. 

 Anteuuuj aud front legs browuisb-yellow, club brown black. 



L. uudicEi'S, 3]>. nov. 



Legs brownish-piceons, the trochanters, base of tibia' aud tarsi buney-yellow. 



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



Antennae brownish-yellow, club brown L. rrNiTATU.s. sp. nov. 



Antenna' wholly brown-black L. klokidants, sp. nov. 



2. Frons smooth or micro8coi)icallj' punctate 3 



Frons transversely striat«'d; thorax smooth. 



Antenna; aud lej; 'jwuisU-ycUow or i)alo rufons, clul» brown. 



L. s riuATiFUoxs, sp. nov. 



3. Frons microscopically punctate 4 



Frous smooth; coxa' black. 



Abdomen twice the length of thorax, subcompressed. 



L. LONGIVENTKl!?, sp. nov. 



Abdomen not longer than the thorax, not compressed. 



L. UKEVIVENTKIS, Sp. DOV. 



4. Coxa' black. 



Legs black or brownish- piceims, trochanters, knees, tij)s of tibia-, and tarsi 



yellow L. cvNii'iPiaLUS Ashm. 



Coxas brownish-yellow; legs aud anteaniu, except club, yellow. 



L. i-LAVicoKXis, sp. nov. 



MALES.' 



Mesonotal furrows wanting or only indicated posteriorly 2 



Ml sonotal furrows distinct, com))lete. 



Head rugose, thorax minutely punctiite L. ulgiceps, sp. nov. 



Head iinely X)unctate, thorax minutely punctate. 

 Antenna' and the middle legs brownish-yellow, the Iriud legs brownish- 



l)iceou8 L. I'lNCTATis, sp. nov. 



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

 Antenna' black; legs, except trochaut^-TS and tarsi, fuscous. 



L. I'LOHiDAXL'.s, sp. nov. 

 2. Frons smooth; coxa' black. 

 Legs brown isli-])iceous. 



Seapo and funicle brownish-yellow, the second funielar joint swollen. 



L. IJKKVIVEN'IHIS, sp. nov. 



Legs brownish-yellow or yellow. 



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



narrowed basally L- cynu'H'IIIUS Ashm. 



* Flagellum yellow, the ulub joints twice as long as thick, cylindric. 



L. KLAVIK)«M8, sp. nov. 



Frons distinctly punctate. 



Scape, pedicel, and legs ,ellow L. rrxcTicEP.-*, sp.nov. 



Frons micro8coi)ically ])uuctate; coxie black. 



Auteume .•ind legs, except anterior tibia' and tarsi, which are lioney-yellow, 

 browuish-piceous or fuscous L. itue.s*. ens, sp. uov. 



