104 THOS. L. CASEY. 



The unique specimen of this species was received too late to admit of ^ 

 figuring ; it is much more robust than T. velox, which it otherwise resem- 

 bles in some respects ; in color, however, it is entirely different. 



After examining all of Grouvelle's recently described species of this 

 genus, without being able to identify it among them, I am quite confident 

 of its being new to science. 



One specimen collected in Southern Arizona by Mr. Morrison. 



I have dedicated this species to the late Dr. J. L. LeConte, as a slight 

 token of regard for this most eminent coleopterist. 



Tribe II. — Cryptamorphini. 

 One genus in which, thus far, but one species has been described. 



CRYPTAIttORPHA Woll. 

 Body elongate, parallel, depressed, similar to Psammcecus. Prothorax sub-cy- 

 lindrical. Scutellum distinct, transverse. Labrum porrected, transverse, ciliated 

 anteriorly. Mandibles distinct, bases broad, tips bidentate. Maxillae bilobed. 

 Last joint of maxillary palpi fusiform and sub-acuminate; truncated at the base; 

 that of labial securiform ; mentum short, transverse. Ligula membranous. Legs 

 cursorial, tibiae unarmed; tarsi heteromerous in the males, pentamerous in the 

 females, pubescent; first joint abbreviated, second and third a little longer and 

 equal, fourth excessively small, and immersed in the lobes of the third, last elon- 

 gated : claws simple. 



1. C DesjarUinsi (Guer). — Form as in preceding genus. Pubescence mod- 

 erately long and abundant on elytra, less abundant on head and prothorax. Punc- 

 tures of head and prothorax rather sinall. shallow, and moderately approximate ; 

 elytra strongly and coarsely punctato-striate; the surface of the thorax exhibits a 

 granular texture. Color testaceous, antennae darker toward the tip; narrow lines 

 of dark castaneous extend on the internal edges of the elytra, from the base to 

 a point slightly posterior to the middle, where they diverge very obliquely toward 

 the exterior edges terminating at two-thirds of the distance, at the same time be- 

 coming broader and somewhat irregular. Head sub-quadrate, two lateral grooves 

 starting at the front extend to within one-third its length from the posterior mar- 

 gin; eyes prominent and convex. Prothorax slightly narrower than width across 

 the eyes, longer than broad ; sides at first parallel and straight, then converging 

 posteriorly : anterior angles rounded ; sides provided with stiff bristles. Elytra 

 broader than head, twice as long as head and prothorax together; sides slightly 

 converging posteriori}^. Antennae perceptibly longer than head and prothorax 

 together; outer joints slightly broader, flattened and truncated transversely behind ; 

 sides sinuate ; first joint enlarged and ovulate. Length 3.8 mm. 



Plate VIII, Fig. 8. Cosmopolitan. 



Resembles Psammcecus but differs in the antennae and oral organs. 

 It is a graceful insect, very rapid in its movements, and similar in its 

 habits to Tdej)hanas. The very few specimens thus far taken in this 



