AMERICAN COLEOPTERA. ooT 



longer than all the other joints taken together and last joint of max- 

 illary palpus feebly impressed and nearly cylindrical. Harold (Catal- 

 oiius, 1241) place this species in synonymy with Melohntha annularis 

 Knoch. Neue. Beitr. I, p. 89. The description does not seem to bo 

 applicable to our species. 



C. longula, Lee. New Species, p. 79. 



This is our most elongate species and has the eyes more convex and 

 apparently larger than any other in our fauna. The antennal club is 

 much longer than all the other joints taken together, and the last 

 joint of maxillary palpus fusiform and rather deeply impressed. The 

 jirosternum in front of coxai is compressed but less acutely carinate 

 than in srditiosa. 



C. elegans, n. sp. — Moderately elongate, rufo-castaneous, elytra yellowish 

 testaceous. Head sparsely punctured feet black clypeus hemi-hexagonal 

 brownish, nearly truncate in front, anterior angles obtusely rounded, sides 

 slightly arcuate, margins feebly reflexed. Thorax sparsely punctured, sides 

 moderately rounded and gradually broader to base, hind angles broadly rounded 

 color rufo-castaneous. Elytra yellow testaceous, with coarse punctures ar- 

 ranged in nearly regular rows. Body beneath and legs castaneous. Posterior 

 proslernal protuberance distinctly visible, obtuse at tip and transversely emar- 

 ginate, prosternum in front compressed not acutely carinate. Anteunal club 

 short, last joint of maxillary palpus fusiform and impressed. Anterior claw of 

 anterior tarsus ^ deeply divided, the portions widely divergent. Length .46 

 ^—..549 inch; 1L5— 13.5 mm. 



Two specimens from Lower California and one from Indian Terri- 

 tory. Abundantly distinct from all our species in its color and the 

 form of the anterior tarsal claw. 



COTALPA, Burm. 

 C. consobrina, n. sp. — Sides of thorax more feebly arcuate and slightly ex- 

 jUanate at hind angles margin broader and more distinctly reflexed. Elytra 

 relatively longer and less rounded on the sides. Mandibles with a broad tooth 

 beneath from the middle of the free edge in front. Tarsi % very stout, anter- 

 ior tarsi with joints broader than long, the first joint not longer thavi the second, 

 last joint finely strigose at lowor margin. Apical tooth of anterior tibise short. 

 Length .78— .90 inch : 20—23 mm. 



Closely allied to lanif/era, in color and sculpture but more elongate 

 and less robust. 



All our species (puncfiroUiii, Lee. is not before me) have the mandi- 

 bles laminiform and the tarsal joints longer than wide and the first 

 joint as long as the two following. The present species has the men- 

 tum broadly rounded in front and in all the others it is emarginato 

 and in fjranicoUis deeply impressed. 



Occurs at Fort Whipple, Arizona. 



