^ BEETLES. 965 



1S14 ifiTTS). Lachnostekxa pkumxa Lee.. Journ. Phil. Acad. Xat. Sci., 

 III. 1S.56. 251. 

 Oblong-ovate, moderately robust. Dark reddish- or ehestnut-brown to 

 pieeous, the surface usually with a purplish or hoary coating. Clyijeus 

 broadly emarginate. densely punctured, the front more coarsely and roughly 

 Ijunctured. Thorax with niiirgiu serrate, siiarsely ciliate : disli with very 

 coarse, cli sely placed punctures, dense near the front angles, the median 

 line usually smooth. Elytral punctures fine, indistinct, sparsely placed; all 

 the costiv moderately distinct. Jleta.sternum densely punctured, the hair 

 long and dense, male: sparsei- and much shorter, female. Male with an- 

 tennal club a little longer than ttie funicle: abdomen flattened at middle, 

 fifth segment with a strongly elevated, rugcse ridge behind which the seg- 

 ment is rather deeply impressed; last segment irregularly concave, with 

 small granulations. Length 17-il mm. (PI. I, fig. 3TS. » 



Lake and Yigo counties: s(2arfe. -June T-Augrust 11. A num- 

 ber of .specimens have been taken alonsr the beach of Lake ]\Iiehigan. 

 Said to occur on raspberry bushes. Ranges from Ohio and ilichi- 

 gan to Kansas and Texas. 



Group C. 



To this griiup behing- a number of our best known and most com- 

 mon speeics. All agree in having the liody not pubescent above, 

 usually shining, rarely pruinose or iridescfnt; antenna lO-jointed; 

 elypeus usually emarginate; hind tibite truncate at apex, without 

 trace of sinuation at the base of the fixed spur, this spur usually 

 long and straight. Twelve species have been taken in the State, 

 while four otliers perhaps occur. 



KEY TO IXUIAXA SPhi lES OF GBOUP L. 



a. (Jlypeus nnt densely punctiu'ed. its margin moderately reflexed. feebly 



emarginate; side margins of thorax not serrate, disk never very 



coarsely punctured. 



h. Last ventral segment of male with a distinct cup-sliaped deipression: 



fifth segment with a very feeble transverse ridge near the hind 



border; form short and rolmst; color pale clie^tnut brown. 



CEASSISSIMA. 



66. Last ventral segment of male without any well defined concavity; 

 clnieus distinctly emarginate. 

 c. Fifth venti-al se^'ment of male with a semicircular, slightly rugu- 

 Icse depression, without a transverse ridge. 1S15. ixversa. 



ce. Fifth ventral segment of male with a transverse, more or less 

 sinuous ridL'o in front of the hind mar,gin of the segment. 

 d. Surla^re with a conspicuous hoary or pruim^^e coating. 



1 SIC. MICAXS. 



d(l. Surface not at all pruinose. 



