CHARLES SCHAEFFER. 257 



liachnosteriia arkausaiia n. sp. — Oblong, slightly broader behind, 

 castaneous, shining. Clypeus moderately reflesed, apex distinctly but not 

 deeply eraarginate, surface and front of head coarsely punctuate, the latter more 

 densely than the clypeus. Antennae ten jointed, club as long as the preceeding 

 joints. Thorax broadest at base, obliquely narrowed in front, behind slightly 

 sinuate, margin feebly crenate, more so behind middle; surface coaisely and 

 rather closely punctate, at middle of disk a short, longitudinal, smooth, median 

 space. Elytra rugose, punctuation scarcely distinct; discal costte feebly distinct, 

 the submarginal scarcely visible. Pygidium convex, punctures not densely 

 placed, coarse and partly confluent. Metasternum densely covered with long 

 hairs. Abdomen finely and sparsely punctate at sides, the last two segments 

 more coarsely. Last joint of maxillary palpi elongate, as long as the two pre- 

 ceding joints, not impressed. Claws arcuate, with a strong acute tooth at middle. 

 Length 21 mm. 



3Iale. — Antennse ten-jointed, club as long as the preceding joints. Abdomen 

 slightly flattened at middle, penultimate segment with an arcuate, feebly eleva- 

 ted rugose ridge at middle, behind which the segment is slightly depre.ssed, not 

 emarginate at apex. Hind tibiae squarely truncate at apex, inner spur fixed and 

 one-half as long as the outer spur, which is long and very feebly curved. 



Arkansas. One male from Mr. Chas. Palm. 



This species belongs with fusca and allies, the clypeus being 

 coarsely but not densely punctate, and the thorax widest at base. 

 From all of the species of this group it will be readily distinguished 

 by the more coar.sely rugose elytra, obliterating nearly the punctua- 

 tion. From Linell's kavLskei it differs in being smaller and havino- 

 a different form of ridge of the penultimate ventral segment. The 

 genitalia are also different from any of those described and figured 

 by Prof Smith, but are unfortunately lost. 



Lachiiosteriia pygidialis n. sp.— Oblong, broader behind, brown, 

 shining. Clypeus flat, margin very feebly reflexed, apex distinctly emarginate, 

 surface and front of head coarsely and densely punctate and clothed with erect 

 hairs, which are shorter on the clypeus than on the front. Thorax slightlv 

 broader at base than at middle, narrowing to the front from about middle, behind 

 nearly straight; side margin feebly crenate, basal margin on each side near hind 

 angles impressed ; surface relatively finely and not densely punctate, with rather 

 long fulvous hairs. Elytra much more coarsely and closely punctate than the 

 thorax, feebly rugose and shining, sparsely clothed with shorter recumbent hairs 

 and some longer ones near base; discal cosffe very feeble, submarginal coslse 

 more distinct. Pygidium feebly convex, margin at apex reflesed, surface not 

 densely but asperately punctate and sparsely pubescent with moderate, long 

 hairs. Metasternum densely clothed with long fulvous hairs, pubescence of 

 abdomen much shorter and sparser, last three abdominal segmeiits coarselv and 

 asperately punctate at middle, finer and sparser at sides, penultimate segment at 

 middle not deeply excavated, last segment small, about one-fourth as wide as 

 the penultimate. Hind tibi;e with both spurs free and slender, slightly curved 

 the inner a little shorter than the outer, apex of tibiae truncate; claws feebly 

 curved, the tooth small aud nearer the base than the middle. Length 17 mm. 



TEANS. AM. ENT. SOC. XXXII. (33) AUGUST 1906. 



