242 GEO. H. HORN, M. D. 



28. li. bipai'tita n. sp. — Oblong, slightly oval, castaneons to piceous, mod- 

 erately shining. Clypeus broadly, but feebly emarglnate, margin moderately 

 reflexed, the punctures coarse and rather close, front more coarsely and densely 

 punctured. Thorax moderately convex, narrower in front, sides posteriorly 

 nearly straight and parallel, anteriorly arcuately and obliquely narrowing to the 

 front, the margin crenate and with short cilife, the punctures coarse and moder- 

 ately close, near the sides somewhat larger and more distant, median line usually 

 smooth, a slight impression of the basal margin each side. Elytral punctures as 

 coarse and close as those of the thorax, indistinct and rugulose each side of the 

 suture, the sutural and first discal costte fairly distinct, the others very indistinct 

 or entirely wanting. Pygidium sparsely indistinctly punctate. Metasternum 

 densely punctured, the hair moderately long and dense, less dense in 9 ■ Ab- 

 domen sparsely punctate. Claws arcuate, the tooth median and strong in both 

 sexes. Last joint of maxillary palpi very slightly fusiform, not impressed. 

 Length .GO — .75 inch ; 15 — 19 mm. 



Male. — Antennal club as long as the stem. Abdomen slightly 

 longitudinally impressed at middle, penultimate segment (fig. 26) 

 with a moderately acutely elevated, transverse carina at middle di- 

 vided into two parts by the longitudinal impression, an acute emar- 

 gination of the posterior edge of the segment closed with membrane, 

 last segment slightly concave, a faint longitudinal impression, with 

 few granules, the apical border acutely emarginate. Inner spur of 

 hind tibi?e half the length of the outer and not stouter. 



Female. — Antennal club shorter than the funiculus. Last ven- 

 tral segment sinuate each side of middle so that the middle portion 

 projects in the form of a broad triangular tooth. Hind tarsi slightly 

 shorter than the male. 



Variation.s. — The median smooth space of the thorax is not 

 always distinct. The elytral costse may vary in distinctness, but not 

 to any great degree. In the male the transverse ridge of the penul- 

 timate ventral varies in development, so that at times the free edge 

 projects in the form of an overhanging lobe. This is the only species 

 known to me in which the penultimate segment is formed in this 

 manner. 



Occurs in Kansas, Louisiana and Texas. 



29. li. niicailS Knoch. — Oblong, slightly broader behind, brownish-black, 

 surface with a pruinose coating and consequently opaque. Clypeus concave and 

 feebly emarginate, the border moderately reflexed, surface rather coarsely not 

 very closely punctate, front similarly punctate. Thorax nearly parallel behind, 

 arcuately narrowed in front, margin entire or sometimes slightly crenate poste- 

 riorly, basal marginal channel feeble, surface with moderate punctures, sparsely 

 and somewhat irregularly placed, median line smoother, the punctures somewhat 

 finer near the apex than at base. Elytra punctured similarly to the thorax, the 

 punctures equal in size and not very closely placed, sutural costa distinct, also 

 the first discal. the others indistinct or wanting. Pygidium opaque, shining at 



