"^30 GEORGE H. HORN, M. ]). 



In the male the head is hirger than in the female, the eves more 

 prominent and the mandibles stouter and more prolonged. The first 

 joint of the front and middle tarsi are distinctly dilated. 



This species is the largest and most robust in facies of the three 

 here descril)ed. The surface is darker than in the other species. A 

 specimen is before nie with the elytra greenish like the thorax, usu- 

 ally the colors are as described above. 



Occurs in Texas, Big Springs (Wickham). 



C TJritliniicaiis u. sp. — Form sliglitly oblong, couve.x, above bricrht greeu, 

 beneath piceons, .slightly seneous, le.ss testaceous. Antennse darker testaceous 

 at base, outer five joints piceous. Head slightly alutaceous. sparsely irregularly 

 punctate, clypeus broader at base, the apex triangularly eniarginate with the 

 angles more or less prolonged. Thorax ai)out one-half wider at base than long, 

 sides arcuately convergent in apical half only, hind angles rectangular, disc 

 convex, equally punctate, the [junctures niodeiate in size and not closely placed. 

 Elytra more coarsely punctate than the thorax, the punctures rather irregularly 

 placed with but a faint trace of a strial arrangement. Body beneath smooth, 

 abdomen finely alutaceous, with but few fine punctures. Length .16 inch. ; 4 mm. 



I'he sexual characters are as in opucicollis. 



This species, in its form, resembles some Cryptocephali. It may 

 be at once known by the pale legs and the form of the clypeus. 

 Occurs in Arizona and New Mexico (Wickham). 



XODONOTA Lef. 



This name was suggested by Lefevre for those species separated 

 from Colaspis by Chapuis under the preoccupied name JVoda. 



Both Chapuis and Lefevre place the genus in the Iphimeites, 

 which is separated from the Colaspites by the feeble and not always 

 existing character of undulating sides of the thorax in the latter 

 group and entire in the former. 



As in Co[aspis, the third joint of the antennae in Nodonota is 

 notably longer than the second, and the first joint of the hind tarsus 

 as long as the next two. 



Nodonota is closely related to Chrysodiiia and Metaparia ; from 

 the first it is known by the presence of the basal marginal line of 

 the thorax and from the second by the longer third antennal joint. 



It is hard to understand why Crotch should have united all the 

 forms known to him under one name as there was no scarcity of 

 material. There seem to be ft)ur well-defined species at present in 

 collections separable by cliaracters by no means difficult of appre- 

 ciation. They are as follows: 



