NORTH OF MEXICO. 



361 



clothed as the head; anteriorly feebly emarghiate, angles obtuse, sides feebly rounded, base rounded, angles nearly 

 rectangular. Elytra elongate oval, sub-parallel, apex obtuse, base feebly emarginate, humeri moderately prominent; 

 moderately convex above with stria; of coarse punctures, and clothed as in the head and thorax. Under surface of 

 body finely punctured and pubescent, the under surface of thorax and prothorax more densely. 



Within each hind angle the base of the prothorax is a rather broad impression, ren- 

 dering the middle of the base more prominent; there is also a slight impression opposite 

 the scutellum. The pubescence of the upper surface is uniformly distributed on each of 

 the divisions except on the elytra, where a sub-transverse triangular spot more denuded 

 is seen at the middle of the lateral margin and mid-way between this and the apex. These 

 spots are broadest at the margin and are present on both sides of the two specimens in my 

 possession. As compared with the European species, the thorax is longer, less narrowed 

 behind and feebly emarginate in front; the base slightly narrower than, and the apex 

 equal to, the width of the elytra! base. The ground color of the insect is reddish brown 

 one of the specimens being rather darker. 



Length .12 inch. 



Rare in Owens' Valley, California,, under stones. 



ALAUDES, n. <j. 



Anterior tibise broad, triangular, spurs very large. Intercoxal process of abdomen 

 short, broad, rounded in front. Head transverse, broader behind, emarginate in front 

 sinuate or, the sides. Eyes absent. Antennae ten-jointed, first two thicker, intermediate 

 short, broader than long, compactly placed, last three forming an oval compact club, of 

 which tin; terminal joint is longer. Mention very short, transverse; ligula not promi- 

 nent; palpi very short, Maxillary palpi short, last joint oval, slightly arcuate. Gular 

 region prominent, peduncle of mentum broad, emarginate, angles prominent forward. 

 Prosternum not prominent. Thorax very transverse. Elytra elongate oval, straight on 

 the sides, connate; body apterous. Scutellum transverse. Hind tarsi with the first joint 

 rather shorter than the last. 



The absence of eyes and the form of the intercoxal process of the abdomen will serve 

 to distinguish this genus from any of those with triangular tibia3 and with the last joint of 

 the maxillary palpi oval. The margin of the head is slightly sinuate at the position usu- 

 ally occupied by the eyes, and the anterior and posterior canthi of the eye here are in 

 contact. Beneath the margin of the front the side of the head forms a broad groove, near 

 the anterior limit of which the antenna; as usual, arise. This broad groove may be con- 

 sidered as merely the continuation of that in which the antennae usually arise, owing to 

 absence of any prominence in the region of the eye. The gular region is flat, suddenly 

 declivous on the sides ; the lateral margins converge to the front, where it is deeply emar- 

 ginate, with the angles prominent. The mentum is situated at the bottom of this semi' 



AMERI. I'lULOSO. SOC VOL. XIV. — 01 



