328 G. H. HORN, M. D. 



Tlie two spcciPS differ especially in the form of the hinder thoracic an- 

 i^les and base of thorax. In Menctriesi, the angles arc acute, slightly 

 prominent externally and the base of the thorax slightly prolonged, 

 while in the present species the angles are strictly rectangular and the 

 base truncate. This species must be placed near the one just cited in 

 my table of our species (Trans. Ent, Soc. Phil. 1868, p. 126) in which 

 however a clerical error occurs, in the first line the word " elytra" 

 should be used for " thorax". Two species have been described by 

 by Motschulsky that have not been recognised in this country striatm 

 and venfricosus, (Etudes Entom. 1862, pp. 41, 42) both are small spe- 

 cies, the former with deeply punctured striae and the latter with faint 

 ly punctured striae, both have the hind thoracic angles rectangular 

 and in the first species slightly produced. 



The new species above described is the most slender in form of any 

 in our cabinets. 



A. eremita, n. sp. — Pale rufo-testaceous feebly shining. Head oval, arcu- 

 ately biimpressed impressions moderately deep, intervening space feebly con- 

 vex. Thorax wider at widest portion than long, sides moderately rounded in 

 front gradually narrowed to base hind angles rectangular, base truncate and as 

 wide as length of thorax ; disc feebly "convex, median line distinctly impressed, 

 basal transverse impression moderate. Elytra oval, less shining than thora.x 

 and sparsely clothed with very short erect pubescence ; striae obsolete ; three 

 dorsal punctures on the line of the third stria. Length .20 inch ; 5 mm. 



One specimen of this species was collected with preceding in Wy- 

 andotte Cave, by Prof Cope. 



The only species with which it might be confounded is that pre- 

 viously described by me under the name pusio, and although differing 

 very notably on comparison in their general aspect, the points of dif- 

 ference are not easily made plain in a description. The present spe- 

 cies is in all respects broader and less depressed without being convex 

 as in Menetriesi ; the thorax is broader, less narrowed behind and the 

 sides more rounded. The elytra are less shining and the pubescence 

 more distinct although in both species the pubescence can only be ob- 

 served by holding the specimen between the eye and the light and 

 then only with a good power. In the three species at the head of the 

 accompanying tabJe, no signs whatever of pubescence can be observed 

 The elytral striae are here also entirely obliterated, faint traces are dis- 

 cernible only at the base. The basal margin is not prolonged. The 

 few remarks on the comparison of tenuis with the two as yet unknown 

 species described by Motschulsky apply equally to this one. 



