34 AMERICAN COLEOPTERA. 



that species, while tiiere is a specimen of elongata in the LeConte 

 collection labelled in Dr. J. L. LeConte's handwriting "A. (C.) 

 hyperborea Dej. f. Putzeys." 



It is known to nie from Lake Superior, Ungava Bay and Fort 

 Simpson, Canada, and Labrador. 



18. A. penu^ylvanica Xobis. — Form nearly oblong, moderately convex. 

 Color piceous or nearly black, shining, the inflexed portion of the elytra usually 

 paler. Head slightly narrower than the thorax at apex ; frontal grooves short, 

 deep, not extending on to the episterna; antennse slender, shorter than the bead 

 and thorax, rufous; palpi rufous. Prothorax subqnadrate, less than one-balf 

 wider than long, distinctly wider at base than apex, widest slightly in front of 

 middle, impunctate at apex, punctate at base; apex emarginate, the anterior 

 angles rounded, slightly prominent ; transverse impressions feeble ; median line 

 distinct, slightly abbreviated in front; basal impressions broad, deep, bifoveate, 

 the fovese coarsely punctured and more or less confluent; base truncate; sides 

 with the margin narrowly retlexed, arcuate, sinuate in front of the hind angles, 

 which are rectangular and carinate. Elytra together scarcely wider than the 

 thorax and more than one-half longer than wide, deeply striate; humeri suban- 

 gulate ; striae deeply punctate, more finely toward the apex, the scutellar stria 

 moderately long, the eighth with the row of ocellate punctures widely interrup- 

 ted at middle; intervals slightly convex. Body beneath piceous or rufopiceous ; 

 meso- and metasternal episterna, sides of metasternum and of the first two ven- 

 tral segments coarsely punctate. Legs rufous; inner margin of middle and hind 

 femora with two setigerous punctures ; tai'si without external grooves. Length 

 .40-. 47 inch ; 10-11.75 mm. 



The middle tibioe are normally dentate in the males. 



The name fulvipes assigned to this species by Putzeys being pre- 

 occupied (Serville, Fauna France, 1821), that of pennsylvanica is 

 proposed in its pkice. 



One of our most easih' recognizable species, differing from all 

 the others in our fauna, except elongata, by the prothorax verv 

 distinctly wider at l)ase than apex, while from the last named 

 it is readily distinguishable by numerous characters mentioned 

 above. 



Its distribution is interesting. It is the only species of the sub- 

 genus occurring in the more eastern United States south of the 

 Lake Superior region, except at high altitudes. Specimens are 

 known to me from New Jersey, Pennsylvania, District of Cohunbia, 

 Ohio, Illinois, Tennessee, Alabama, Missouri, Nebraska, Kansas, 

 Iowa, Wyoming, Texas and New Mexico, and also from Ontario, 

 Canada. It was apparently taken in great numbers near Alle- 

 ghanv, Pa., by the late Dr. Hamilton. 



