134 GEO. H. HORN, M. D. 



The antennre are rather longer than our other species, exceeding in 

 lengtli the head and thorax by nearly one-half. 



Gr. OBLITERATUS Lec. — Numerous specimens of this species were 

 found in (3\ven's Yalley by Dr. Cronkhite and myself on willows, 

 they do not appear to differ specifically from those found by Gen. Pope 

 in Texas. 



For convenience, I add a table of our species of the genus. 

 Hind tarsi witli first joint equalling joints 3 and 4 together. 

 Epistonie broadly eraarginate. 



Elytra obliquely grooved planicosta Lec. 



Elytra striato-punctate, rugose obliteratus Lec. 



Epistoine truncate. 



Thorax not rounded oti the sides cuneatus Horn. 



Hind tarsi with first joint slightly longer than second. 



Epistorae deeply emarginate sphenicus Lee. 



Epistome broadly emarginate caelatus Lee. 



The first three species have the hind tarsi not only long but also 

 compressed, while the last two have robust, rather flattened tarsi. G. 

 cuneatus appears to combine the form of the second group with the 

 peculiar tarsal characters of the first with the form of epistome pecu- 

 liar to itself. 



CYMATODERA Gray, 

 C. californica, elongate, dark castaneous, shining. Head finely and rather 

 densely punctured, thorax cylindrical, twice longer than broad, slightly nar- 

 rower behind, slightly constricted in front and behind the middle, surface 

 feebly punctured and very sparsely clothed with yellowish hairs. Elytra elon- 

 gate, subparallel, three times longer than broad at base, base truncate, humeri 

 distinct, obtuse, apex sinuate, with suture toothed, surface with striae of coarse 

 punctures, becoming obsolete towards the apex, sparsely clothed, with very 

 short suberect hairs, and with an indistinct pale transverse narrow fascia at 

 middle. Surface beneath and legs ferruginous. Length .76 inch. 



For this insect, as well as others that have been and others that will 

 hereafter be described. I am indebted to my friend Mr. Wm. M. Gabb, by 

 whom this insect was collected in the southern Coast Range of Calif »riiia. 

 This is the largest species of the genus in our fiiuua. Its thorax 

 is more nearly cylindrical and much less narrowed behind than any 

 other of our species, and the sides of elytra more nearly parallel. The 

 pale fascia is nearly straight, not undulate, and continuous. The api- 

 ces of the elytra are sinuate and prolonged at the suture. 



ATJLICUS Spin. 

 A. nero Sjiin. Clerit. I, p. 3.31, pi. 58, fig. 1. 



I quote this species merely to note its addition to our fauna, speci- 

 mens having been collected by Mr. Gabb in the southern Coast llauge 

 of California. 



