316 G. ir. HORN, M. D. 



coarsely and densely punctured. The thorax is longer than wide in 

 i)i/nscatm. nearly sijuare in occidenfalis, and more convex. L. coit- 

 similis, Walker, Nat. in Vancouver, II, p. 325, is from the notes 

 furnished me by Dr. Leconte, identical with L. w/ascaius, 3Iotsch. 



L. maculicollis, Motsch. Bull. Mosc. 1859, IV, p. .372.— .Eneous black, feebly 

 shining, margin above and below and base of thorax also tibise and tarsi rufo- 

 testaceous. Head coarsely and densely punctured almost cribrate. Thorax 

 nearly square, slightly longer than broad, and slightly narrowed at apex and 

 base, sides feebly rounded, basal angles slightly oblique and not carinate, disc 

 convex, faintly canaliculate. Elytra punctato-striate, interstices flat, rugosely 

 punctured and sparselj' cinereo-pilose. Body beneath sparsely punctured an 1- 

 pilose. Prosternal sutures and apex of lobe rufo-testaceous. Length .26 inch : 

 (;.5 mm. PL. IV, fig. 17. 



Resembles in many of its characters, L. nimbatns, Lee, near which 

 it should be placed in systematic arrangement, differs in its larger size, 

 darker color and has the antenna) and femora totally black. 



On account of the rarity of the insect and the difficulty of obtaining 

 access to the description, this short notice has been introduced. 



The unicjue in my cabinet is from the Coast Range, of California, 

 south of San Francisco, collected by IMr. Gabb. 



L. discicollis, Cand. Mem. Bolg. 1865, p. 49. ^L. maculicollis, Motsch. Bull. 

 Mosc. 1859, IV, p. 372. — Specimens are before me, through the kindness of Mr. 

 H. Edwards, of San Francisco, agreeing with the descriptions of both the 

 authors above cited. The former differs from the latter in having the lateral 

 yellowish-red thoracic space much broader so that the black discal space is 

 reduced to a fusiform stripe. In every other respect they agree. The species 

 is very closely allied to nimhatus Say, {infernus, Lee.) and differs by its black 

 color and by the hind thoracic angles being obliquely truncate. 



L. humeralis, Cand. Monog. Ill, p. 402.= L. ornatulus, Lee. Pacif. R. R. Jour. 

 App. I, p. 46, 1857. 



This species is very variable in its coloration, some specimens hav- 

 ing the elytra in great part yellow. In the variety described by Can- 

 deze, the yellow space is reduced to a minimum and consists only of a 

 small spot at the middle of the base of each elytron, and in one speci- 

 men before me this is almost totally obsolete. 



ATHOUS, Esch, 

 A. axillaris, n. sp. — Pale yellowisli ferruginous, feebly shining, antenna?, 

 median space of thorax and elytra (except humeri) brownisli, surface sparsely 

 clothed with j'ellowish pubescence. Head yellow ferruginous, densely punc- 

 tured deeply concave, front truncate. Antennae brownish, second joint of an- 

 tennpe one-half the length of third, third somewhat shorter than fourth, joints 

 from tliird feebly serrate, last joint cylindrical slightly longer than the preced- 

 ing. Thorax slightly longer than broad gradually narrower in front, si(ie.-4 

 nearly straight, anterior angles prominent but obtuse, hind angles not carinate, 

 obtuse at apex and with a very slight emargination in the lateral margin ini- 



