368 MEMOIRS ON THE COLEOPTERA 



fifth, an entire narrow fascia, which is anteriorly angulate with that on the 

 other elytron at the suture, the apices not densely pubescent; legs slender, 

 the posterior long, with the femora extending well behind the elytra. 

 Length (cf) 9.8 mm.; width 2.6 mm. Texas. 



This species is frequently confounded with the northern longipes 

 of Kirby, but differs in its more laterally rounded and less slender, 

 more coarsely sculptured and more definitely triserially carinulate 

 prothorax and decidedly in the disposition of the elytral fasciae; 

 in longipes the base is loosely pubescent, the suture has near basal 

 third a small rhombus and near the sides a small spot, wholly 

 absent in fulguratus, and, just behind the middle and very much 

 posterior to the zig-zag fascia of the latter, a transverse fascia which 

 is much less angulate on each elytron ; the posterior fascia is nearly 

 as in fulguratus but rather more oblique anteriorly to the suture, 

 finer and not extending to the sides. 



Neoclytus inf ans n. sp. Form very slender, cylindric, black throughout 

 and dull, the legs and antennae piceo-testaceous; antennae (cf) very 

 slender, slightly thickened apically, nearly three-fifths as long as the 

 body, the second joint half as long as the third, which is a little shorter 

 than the first, the latter unusually slender; prothorax distinctly elongate, 

 arcuate at apex, with the sides parallel, evenly and distinctly arcuate 

 throughout; surface with only extremely small and scarcely observable 

 hairs, densely, finely punctate, with a broad lateral area having scattered 

 granules and a median line of transverse carinules; scutellum small, 

 nearly nude; elytra as wide as the middle of the prothorax, two and one- 

 half times as long, perfectly parallel and straight at the sides, rounding 

 at apex to the distinct external angle of the oblique truncature, having 

 each, of dense white pubescence, a narrow juxta-sutural line in fully 

 basal fourth, curving outwardly briefly and more diffusedly at base, 

 a small sublateral point at basal third, an oblique line just behind the 

 middle and not attaining side or suture and another oblique line near the 

 apex, attaining the suture but not quite the sides; under surface sparsely 

 punctulate and pubescent, with white condensation on the mes-epimera, 

 posterior half of the met-episterna and lateral part of the apices of the 

 first two ventral segments; legs very slender, the posterior femora ex- 

 tending distinctly behind the elytral tips. Length (cf) 6.8 mm.; width 

 1.7 mm. California (Siskiyou Co.), Koebele. 



Belongs near muricatulus but differs in the more slender and less 

 claviform basal joint of the antennae, relatively longer second joint, 

 more elongate and more medially carinulose prothorax, more slender 

 legs and very much longer and more slender basal joint of the hind 

 tarsi. 



The following may be considered a subspecies or variety of luscus: 



