Coleopterological Notices^ VI. "17 



and trapezoidal apical emargination more than twice as wide as 

 deep, the margins of which are narrowly thin, whitish and mem- 

 branous. In the female the fifth ventral is shorter, scarcel}' longer 

 than the fourth and broadly truncate at apex. 



The six specimens in my cabinet show more tendency to vary 

 in color than in vulneratus, in one example the basal pale area 

 spreading feebly along the suture posteriorly, and the pronotum 

 var3'ing from intense black to pale testaceous; the male sexual char- 

 acters and smaller eyes will distinguish it at once from vulneratus, 

 which is the only species which is at all similar. 



39. A. decorelllis n. sp. — SomeAvhat stoat, moderately convex, dull, 

 piceons-black, the bead and elytra blacker than the protliorax; legs pale 

 throughout; antennte fuscous, paler toward base; pubescence short, even, 

 coarse, dense, cinereous and conspicuous, clavate and recurved on the prono- 

 tum and basal parts of the head. Head large, truncate at base, witli a deep 

 canaliculate median impression; basal angles broadly rounded; eyes large and 

 prominent, distinctly longer than the tempora, the latter feebly convergent 

 and arcuate behind them ; disk not coarsely but strongly and densely punctate, 

 the smootli line imperfect; antenuse rather slender and feebly incrassate, barely 

 as long as the head and prothorax, the tenth joint as long as wide. Protliorax 

 small, as long as wide, scarcely three-fourths as wide as the head, evenly con- 

 vex, parallel and broadly rounded anteriorly, Avidest near anterior third, ob- 

 tusely and angularly constricted somewhat before basal fourth; punctures 

 rather fine but deep and extremely dense. Elytra two-thirds longer than 

 wide, nearly two and one-half times as wide as the prothorax, the sides par- 

 allel, broadly, almost evenly arcuate, the apex not very broadly rounded ; 

 humeri widely exposed ; onioplates subobsolete, the scutellar impression rather 

 narrow and distinct; punctures somewhat fine, deep, very dense. Abdomen 

 finely, closely punctate, the legs somewhat long, slender. Length 3.2 mm. ; 

 width 1.15 mm. 



Texas. 



The elytra have each a very large pale spot, extending from 

 near the extreme base to the middle, wliere it is united with an- 

 other large elongate-oval spot extending to apical eighth. The 

 single specimen is a female, separable at once from Junctus by 

 the large eyes, and readily distinguishable from vulneratus, which 

 it more closely resembles, by the relatively smaller prothorax, 

 much denser punctuation throughout, and rather shorter and 

 broader elytra, in addition to the distinct ornamentation. 



40. A. iiaiill«i Lee. — Ann. Lye. Nat. Hist., N. Y., V, p. 15(); Proc. Aciul., 

 Phila., 185:2, p. 101. 



Rather narrow, convex, shining, pale testaceous throughout 



