NORTH AMERICAN COLEOPTERA. 277 



The character used to sei)arate (//abricula and fucata does not seem 

 very strong-, Init in nature the difference is very striking, the ventral 

 iiuil'i characters are also different. 



G3. L.. siibiniiCJUa Lee— Ohloiiii, subcyliiulrical. slightly broader behind, 

 facies robust, reddish-brown or rufopiceoiis, surface distinctly sericeous or irides- 

 cent. Head moderately broad, eyes not promiueut, color usually darker. Clypeus 

 flat, eniarginate, niar>;in narrowly reflexed and with the front densely and rather 

 coarsely puuctui-ed. Thora.x narrowed in front, the sides arcuate, margin very 

 feebly crenate by the insertion of distant ciliie. surface equally punctate, with 

 punctures of moderate size not closely placed. Punctures of elytra coar.ser and 

 deeper than those of the thorax, not closely placed, the usual costse distinctly 

 indicated, the submarginal well developed and entire. Pygidium somewhat ir- 

 regular, the punctures coarse, rather clo.se, but shallow. Last joint of palpi 

 fusifm-m, not impressed. Claws arcuate, with an acute tooth near the base, larger 

 in the female. Length .75 — .80 inch ; 19 — 20.5 mm. 



Male. — Club of antenna? shorter than the stem. Abdomen 

 slightly flattened at middle, the hind mai'gin of the penultimate 

 segment (fig. 24) abruptly thickened with acute granulations. 



Female. — Club of antennse shorter than the funiculus. Posterior 

 tarsi a little shorter than in the male. 



Variations. — Numerous specimens have been seen, but no varia- 

 tion worthy of mention has been observed. 



This species is one of the few in which the surface is sericeous or 

 slightly iridescent. In this form of surface, immersion in alcohol 

 does not seem to injure the lustre, while in those truly pruinose, like 

 micaiis and prunhia, the coat is often entirely removed. 



In perfectly fresh specimens the punctures of the elytra bear an 

 extremely short, recumbent hair as in pruminadina, but in the great 

 majority of specimens these are not seen. 



Occurs quite commonly in western Texa.s, taken by Belfrage at 

 Waco. 



64. L.. i^labricula Lee. — Oblong, subcylindrical, slightly broader behind, 

 rufotestaceous or slightly darker, surface moderately shining, not iridescent. 

 Head moderately broad. Clypeus eniarginate, rather concave, the margin re- 

 flexed, moderately coarsely not densely jjunctate, front more densely. Thorax 

 distinctly narrowed in front, sides arcuate, margin entire, sparsely fimbriate, 

 disc evenly punctate, the jjunctures coarser and moderately close. Elytra with 

 punctures as coarse as those of the thorax, less densely placed, less deep near the 

 apex, the surface somewhat wrinkled ; sutural costa well marked, the discal and 

 submarginal almost entirely obliterated. Pygidium more finely punctured than 

 the thorax, the punctures rather irregularly placed. Metasternum closely punc- 

 tate, the hairs moderate, not dense Abdomen shining, sjjar.sely punctate, with 

 short hairs at the side. Last .joint of maxillary palpi fusiform, not impressed. 

 Claws arcuate, the tooth moderate in si/.e. near the basal dilatation. Lengtli .55 

 — .65 inch ; 14 — 16.5 mm. 



