NORTH AMERICAN COLEOPTERA. 41 



In the males the anterior tarsi are dilated as usual, and the last 

 ventral segment einarginate. The markings vary somewhat on the 

 elytra, but not greatly from that described. 



Occurs from Canada to Virginia and Missouri. The males seem 

 the more rare. 



H. VaiKloiiei'i Muls. (Phheotrya), Col. Fr. Barbip. p. 79, pi. i, fig. 11 ; fiisca 

 Lee. [Dircsea), Proc. Am. Pliilos. Soc. 1878, p. 619. — Elongate, cylindrical, slightly 

 depressed, dark brown, feebly shining, sparsely clothed with short brown pnlies- 

 ceuce. Antenuie slender, ferruginous, outer joints all longer than wide. Front 

 moderately closely punctate. Thorax usually a little longer than wide, apical 

 margin usually paler, surface densely punctured, opaque, more or less rugulose, 

 sometimes slightly confluent transversely, the basal impressions wanting or very 

 vague. Elytra with very vague costal, the surface less coar.sely punctured than 

 the thorax, except near the base, toward the apex the punctures become rapidly 

 finer and the surface more shining. Body beneath moderately coarsely punc- 

 tured, the abdomen more densely and finely. Legs reddish-brown. Length 

 .28 —.37 inch ; 7 — 9.5 mm. 



In the males the anterior tarsi are dilated, the last ventral segment 

 emarginate. Segments 2-3-4 of the abdomen have at middle a 

 transverse space of denser punctuation and pubescence. 



By means of a specimen kindly sent me by Mr. Fauvel I am ena- 

 bled to realize the identity of our species with that previously de- 

 scribed by Mulsant in Europe. 



This species seems very rare in Europe, and is by no means com- 

 monly met with here, although widely diffused, and differs slightly in 

 the various localities. In some specimens the thorax is very dis- 

 tinctly rugulose, almost finely granulate, in others the punctuation 

 is almost simple. As a general rule the larger specimens have the 

 rougher thorax, the costaj of the elytra more distinct and the basal 

 foveie of thorax more evident. 



From a study of my specimens and a reading of Duval's account 

 of the differences between Vaadoiceri and Stephemii, it seems that 

 these should be carefully studied before further continuing them as 

 distinct. 



Our species extends across the continent from Nova Scotia to 

 California, and as far south as North Carolina. 



H. concolor Lee. (Dircsea) New Species, 1866, p. 149. 



Very similar in form and color to the preceding species, but much 

 smaller, differing especially in the folhnviug particulars : 



Antennae very little longer than the head and thorax, piceous, the three basal 

 joints testaceous, joints 6 — 10 not longer than wide. Legs fuscous, the tarsi 

 paler. Length .25 inch; 6 mm. 



TRANS. AMER. KNT. .IOC. XV. (6) APRIL, 1888. 



