36 O. H. HORN, M. D. 



arcuate and slightly broader than the apex, sides very feeblv arcuate, margin 

 thickened and soinewliat reflexed, surface shining, sparsely and evenly punc- 

 tured. Elytra as wide at base as thorax, parallel, moderately deeply striate, 

 striaj coarsely and subseriately punctured, intervals moderately convex, 

 sparsely punctulate. Body beneath paler than above, very sparsely and finely 

 puiiclulate. Length .12 inch ; 3 mm. 



The appearance of this snsect is that of a miniature but rather con- 

 vex Uluma It resembles also Dioedus more closely, but differs in 

 having the last three joints of the antennae thickened, while Dioedus 

 has but two. 



Speciiues collected in Oregon were kindly given me by Mr. A. S, 

 Fuller, 



5ii€APIII»E!»IA, Redt. 

 S. pictiiin, n. sp — Oval. Head black, surface s,eneous sparsely punctate. 

 Thorax nearly twice as wide as long, sides in front feebly arcuate, posteriorly 

 nearly straiglit and slightly divergent, hind angles rectangular, color black, 

 surface aeneous sparsely punctate, basal impressions extending nearly to mid- 

 dle. Elytra at base broader than the thorax, moderately convex, sides moder- 

 ately arcuate, surface striate, strisB 6nely punctured, intervals flat, biseriately 

 finely punctulate an<i obsoletely reticulate, color yellowish testaceous, with 

 basal black band broad at middle, an irregular sinuous transverse band at 

 middle cotnposed of lines of variable length on the intervals but shortest at 

 the suture, and a subapical ova! spot, apical margin piceous. Epipleurre pale. 

 Body beneath piceous slightly aeneous, sparsely punctulate and shining. Fo- 

 mora piceous, tibiae and tarsi paler. Length .14 inch; 3.5 mm. 



The form of this species is broader than aeneolam and resembles 

 more nearly that of the European species. 



Occurs in Oregon. Henry Edwards. 



IIELOPJi, Fab. 

 II. arizoiieUNi.S, n. sp. — Form rather slender, apterous, black, opaque. 

 Head coarsely and rather deeply punctured. Antennae nearly half the length 

 of the body, outer joints slightly c unpressed, very slightly shorter. Thorax 

 slightly wider than long, sides feebly arcuate, margin obtuse, apex truncate, 

 base feebly arcuato, hind angles slightly prominent, disc moderately convex, 

 densely and coarsely punctured and opaque, beneath punctured as above. 

 Elytra oblong, humeri obtuse, surface deeply striate, strise coarsely punctured, 

 intervals convex and finely granulated. Body beneath black, slightly more 

 shining than above, raeso- and metasteriiura coarsely punctured, abdomen 

 finely rugulose and more sjjarsely and finely punctured. Length .34 inch; 

 8.6 mm, 



\iy the character given in the table (Revis. Tenebrionidaa, p. .392) 

 this .opecies should be placed near atifcipennis, but by its opaque sur- 

 face and deeply sulcate elytra it differs from every other species in our 

 fauna. 



Specimens from Arizona were kindly presented by Mr. C. V. Kiley. 



