'I'lii: i.AMKT-Tjronx '!i:i"I'M':s. :»<m 



nil. 'I'Ihu'iin less (Icnscly ;iii(l not coiitliiciit ly imiid iircd, willHuil ;iii clc- 

 v.-ilcd iiicdiMii line. 

 (;. I'illli vciitr.il <;!' iii.ilc deeply coiicnve .-nid ;,'r;imdate lielniid the 

 middle, with ai: (iliii(iiie rid,i,'e earli side; liierax coarsely and 

 raliier elesely imncfate. tiie median line smixitli. 



iSlTi. Kl COSA. 



tx). l-'ifdi venlral i>\' male willi a strongly elevated. n\-erliani,Miii,' 

 curved ridi^'e. sumetinies (li\ideil at middle; llierax mure tiiiely 

 and irregularly jiunctured. liavinu- smonlli spaces Imt nn sniodtli 

 median line. \s-2i\. iiou.Mi. 



L. irassissiiiKi lUancli., leniith l.l-'il iiiiii., is known ffoiii New 

 Vofk, Illinois, K;msiis jind Texas. 



isir> (10,2:55). Laciinostkrn.x invkksa Hern, Trans. Amer. Fiiit. Soc., XIV. 

 1SS7. 241. 

 (>hl(in,^-((val. scarci'ly broader behind. Keddish- or chestimt-l)ro\vn, mod- 

 er.itely shiuiiii^. Clyiieus feebly eniaririnale, rather closely punctate. Tho- 

 rax with sides nearly parallel behind, slij^htly curved in front of middle, 

 margin entire, sparsely ciliate; surface with moderately coarse punctures 

 not closely placed. Elytra 1 punctures more closely placed than those of 

 thorax, distinctly ruynlose alonj; the middle; discal and submarginal costa' 

 very feeble. Male witli antennal clnb nearly as long as the stem; last ven- 

 tral segment broadly and transversely imi)ressed ; inner spur of hind tibia' 

 broad, short and dhluse. Length 1.")-1S mm. (PI. II, fig. 3S.3.) 



Vii;o ami Knox counties; Si-arce. May 9-^Iay 29. Taken at 

 electric light, iu'scitililes //^sYY/ Intt shorter, more slender and witli 

 the elytra more distinctly i-ui!:nl()se or wrinkled; the male ventral 

 characters also widely different. 



1810 (.57»il). r.AcnxosTF.RNA MicANs Kuoc!)., New Beytr., ISOl, 77. 



Oblong, slightly broader behind. P.rowinsh-black, surface with a hoary 

 coating. Clypens concave, very slightly emarginate, its surface rather 

 coarsely, not closely punctate. Thorax with margins entire or nearly so; 

 surface rather coarsely, sjuirsely and irregularly punctured, the median line 

 smoother. Elytr.a jmnctured similarly to thorax. Metasternum densely 

 punctured, the hair rather long and dense. Male with anteimal chib shorter 

 than stem; tifth ventral with a feebly elevated curved ridge at middle; last 

 segment irregularly concave; inner spur of hind tibiic lialf the length of 

 outer, slender and slightly curved outwardly. T>engtli l.')-17 mm. (IM. I. 

 tig. 3S2.) 



.Monroe, Lawrence, Oibson and Perry cinintie-;; ffeiiiicnt. May 

 Ki-June 21. ()n(> of our smaller species, easily known by the hoary 

 coating'. AVlien this is removed the coloi- is dark i-eddish-hrown. 



