ROLAND HAYWARD. 43 



ill front; metastermim and nietasternal episterna impunctate ; sides of first two 

 ventral segments finely and rather sparsely punctured. Legs dark rufous. 

 Length .28-.32 inch ; 7-8 mm. 



The above name is propo.^ed in place of septentrionalis Lee. 

 (1<S48), the latter being pre- occupied (Curti.s, Ann. Mag., 1840, p. 

 274). I take plea.sure in dedicating it to Mr. E. A. Schwarz, bv 

 whom most of the specimens in our collections were taken, in 

 acknowledgment of many favors. 



In the males the prosternum has no punctured area or fovea, but 

 in lieu thereof a deep groove extending from the ti|) nearlv to the 

 apical margin. This is represented in the females, but is less 

 marked. 



But slight variation is shown. As in apricaria, the first two 

 joints of the middle and hind tarsi sometimes exhibit faint traces 

 of an external groove. 



It seems most nearly related to latior Kirby, from which it is 

 separable by the [)rosternal characters and by its smaller size. 



Known only from Lake Superior. 



27. A. latior Kirby. — Form obloug-oval, moderately elongate, slightly 

 convex, the elytra more or less flattened ou the disk. Color dark piceous or 

 black, sometimes sliglitly teueous; surface very finely alutaceous in the females. 

 Head scarcely narrower than the thorax at apex ; frontal grooves short, not ex- 

 tending forward on to the epistoma; eyes moderately large, finely granulate ; 

 antennffi slightly shorter than the head and thorax, dark rufous; palpi rufous. 

 Prothorax subquadrate, about one-half wider than long, nearly equally narrowed 

 before and behind, widest about the middle, deeply emarginate at apex ; base 

 truncate ; anterior transverse impression usually distinct, sometimes nearly 

 effaced, the posterior usually feebly marked at middle; median line distinct, 

 abbreviated in front; basal impressions broad, distinctly bifoveate, jiunctate. the 

 inner fovea longer than the outer; sides with the margin narrowly reflexed, 

 arcuate, less strongly so behind, rarely obsoletely sinuate in front of the hind 

 angles, which are obtuse, at most but feebly prominent, and very obtusely cari- 

 nate. Elytra slightly wider than the thorax, subparallel, deeply or moderately 

 deeply striate; stria; entire, varying from distinctly to obsoletely punctate, the 

 punctures becoming evanescent at the sides and towards the tip; scutellar stria 

 long; intervals flat or nearly so. Body beneath dark piceous or nearly black, 

 shining; pro-, meso- and metasterna and side-pieces impunctate; sides of the 

 first two ventral segments sparsely punctured. Legs varying from rufous t(» 

 rufopiceous or piceous. Length .35-. 43 inch ; 8.75-10.75 mm. 



In the males the prosternum has a shallow, oval, ])unctured space 

 at middle, sometimes only feebly indicated by a few small punctures. 



Our largest and best known species of the subgenus, easily recog- 

 nizable by the characters given in the table. 



TRANS. AM. ENT. SOC. X.XXIV. MAECII, 1908. 



