CERAMBYCID^E 199 



inent and finely faceted, deeply emarginate eyes, the much retracted 

 tempora arcuately and feebly converging behind them to the obtuse 

 angles at the deep and strong constriction extending equally across the 

 base, the surface equally and rather strongly but not densely punctured 

 throughout; antennae slender, filiform, deep black excepting the moder- 

 ately stout basal joint, extending to apical fourth of the elytra, the third 

 joint but little longer than the fourth, the fifth as long as the two pre- 

 ceding combined; prothorax fully a third longer than wide, strongly 

 constricted at apex, very feebly at base, strongly and obtusely tuber- 

 culate at the sides just before the middle; base just visibly arcuate and 

 much wider than the apex, the surface evenly convex, with moderate and 

 shallow, well separated punctures, each bearing a very small fulvescent 

 hair; scutellum small, nude, rather longer than wide, obtuse; elytra recti- 

 linearly subparallel, four-fifths wider than the prothorax, two and three- 

 fourths times as long as wide, very feebly narrowing and slightly arcuate 

 at the sides in about apical fifth to the broadly rounded apices, the sutural 

 angles right and blunt; surface even, polished, very coarsely, deeply punc- 

 tate, a little less coarsely apically, the punctures everywhere well separated 

 by fully their own diameters, each bearing a short, stiff suberect and f usco- 

 cinereous hair; under surface sparsely cinereo-pubescent, the abdomen 

 polished, finely punctate, closely so basally, very sparsely apically, the 

 last ventral in the type evenly rounded, as long as the preceding; legs 

 rather short, not very slender, the tarsi nearly as in Pyrotrichus. Length 

 7.3 mm.; width 1.8 mm. California (Marin Co.). 



The type seems to be a male and differs from Acmceops lisa in 

 having only the first antennal joint pale, the pronotum sparsely 

 punctate throughout above, not densely punctured with a small 

 smooth space near the base as in lisa, and in the widely separated 

 elytral punctures, these being almost confluent basally in lisa, also 

 in the black and sparsely, feebly setulose elytra, these being rufo- 

 testaceous and clothed with fine golden pubescence in lisa. It is 

 somewhat evident, however, that lisa also may be a Thesalia and I 

 am unable to account for its assignment to Acmceops, in view of its 

 deeply emarginate eyes, disagreeing thus with the most important 

 distinguishing character of the genus Acmtzops. 



The genus Thesalia, of which the type is the above described 

 rubriceps, evidently comes between Pyrotrichus and Encydops, 

 having the general form and sculpture of the elytra and legs of the 

 former and the more salient characters of the head, antennae and 

 prothorax of the latter. Leptalia, on the other hand, is so close to 

 Toxotus in general facies and structure, that the two could very well 

 be united, were it not for the normal tibial structure of Leptalia, 

 the singular tibial apex of Toxotus being wholly unsuggested, but 



