AMERICAN COLEOPTERA. 85 



Lec, wliile the pubescence of the latter is not uniform, but on the 

 elytra two transverse sinuous bands of darker color are very evident 

 in well preserved specimens. In the present species the third joint 

 of the antennae is very nearly as long as the fourth and fifth together, 

 while in Davidsoni it is but little longer than the fourth. The color 

 of the tegument is also different, that of the present species nearly 

 black, while in Davidsoni it is usually brownish testaceous^ rarely 

 piceous. 



My specimens were collected in the Mariposa district of California, 

 by Mr. Alphonse Thevenet. 



ANORVS Lec. 



Form elongate, linear. Head nearly horizontal. Eyes round, moder- 

 ately prominent. Antennae slender, subserrate. Mandibles prominent, 

 tip acute and suddenly arcuate, behind the tip obtusely dentate, upper 

 edge acute. Frontal suture distinctly impressed, labrum short trans- 

 verse. Mentum transverse, narrower in front, ligula membranous with 

 two moderately long appendages at tip, labial palpi slender, last joint 

 longer than the preceding. Maxillary palpi longer but similar. Pro- 

 sternum moderately long in front of the coxae but not prolonged 

 between them. Anterior coxse conical, prominent and contiguous with 

 a large trochantin. Middle coxse oval, moderately prominent, narrowly 

 separated by the nearly horizontal mesosternum; mesosternal side 

 pieces nearly equal. Metasternal episterna moderate in width, parallel 

 with small epimeron. Posterior coxae contiguous, moderately dilated 

 internally. Legs slender, tibiae with spurs. Tarsi slender, first joint 

 as long as the next three, third with a short lobe beneath, fourth with 

 a deeply divided long lobe. Claws slender, slightly thickened at base, 

 divaricate, and without onychium between them. Abdomen of five 

 nearly equal segments. Body winged. 



The only foreign genus with which this appears to have any affinity 

 is Therius, from which it differs in the form of the mandibles, palpi 

 and tarsi. 



One species occurs in California. 



A. piceus Lec. — Elongate, parallel, piceous or testaceous, finely cinereo- 

 pubesceut, moderately shining. Head moderately densely punctulate. Thorax 

 a little more than twice as wide as long, apex truncate, base bisinuate, sides 

 arcuately narrowing to the front, hind angles rectangular, lateral margin acute 

 but not explanate, apical margin fimbriate, disc moderately convex not very 

 densely punctate. Elytra a little wider than the thorax, parallel, narrowed 

 at apical fourth, surface substriate, vaguely seriately punctate, intervals slightly 

 convex, punctulate. Boily beneath more shining, sparsely punctulate. Length 

 .33— .44 inch 5 8—11 mm. (PI. I, fig. 3). 



