256 GEO. H. HORN, M. D. 



of the segment obliquely plicate each side. Last segment vaguely 

 concave, smooth. Spurs of the hind tibise slender and acute, the 

 inner one-third shorter. 



Female. — Antenual club shorter than the funiculus. Pygidium 

 more elongate, the hind tarsi slightly shorter than the male. 



Variations. — There is no great variation in color in the speci- 

 mens examined ; the sculpture is in some specimens much more ru- 

 gose than in others. 



This species was not ])laced by Dr. LeConte among those with the 

 sides of the thorax subangulate, for the reason that the smaller series 

 of specimens and the fewer species enabled him to draw the line more 

 closely. It is placed in the present series because the thorax is very 

 distinctly narrowed at base, although the prominence of the sides of 

 the thorax is rather rounded than angulate. 



A very close resemblance between this species and rugosa exists, 

 so that it is hardly possible to separate the females, the males may 

 be readily distinguished by the ventral charactei's. 



Occurs in Illinois and Texas. 



41. Ij. scittila; n. sp. — Form rather elongate, elytra widest at middle, chest- 

 nut brown, head and thorax somewhat darker, shining. Clypeus rather deeply 

 emarginate, the border moderately reflexed, densely coarsely punctate, front 

 much more coarsely punctate at middle. Thorax broadest at middle and verj' 

 distinctly angulate, narrowed toward base, sides more oblique in front, apex not 

 much narrower than base, margin crenate, cilipe short, very densely and moder- 

 ately coarsely punctate, the punctures subconfluent in a transverse direction, 

 median line posteriorly cariniform, smoother. Elytra nearly elliptical in form, 

 widest at middle, the sutural costa alone distinct, the others entirely obliterated, 

 punctures moderately coarse and close. Pygidium sparsely punctate female, 

 rugose male. Metasternum densely punctured, the hair moderately long and 

 dense in the male, extremely short and sparse in female. Abdomen sparsely 

 punctate at the sides, the last two segments more coarsely. Claws curved, the 

 tooth strong and median. Last joint of maxillary palpus fusiform, not impressed. 

 Length .70— .78 inch ; 18 — 20 mm. 



Male. — Antennal club a little longer than the stem. Abdomen 

 slightly concave at middle, the penultimate segment (fig. 40) with a 

 triangular depression posteriorly, surrounded by an obtusely elevated 

 ridge. Last segment flattened with rugose punctures. Inner spur 

 of hind tibia elongate triangular and very acute, the outer longer, 

 rather broadly translucent at apical half. 



Female. — Antennal club shorter than the funiculus. Pygidium 

 more elongate, slightly gibbous near the tip. Posterior tarsi not 

 shorter. 



