440 [ DECEMBER, 
other the lunule is narrow and divided, and the humerus has a distinct round 
white spot; in a third there is no humeral spot, but there is a narrow transverse ° 
line about the middle, and one-third way from the margin to the suture; a small 
spot below and inside of this is obsoletely connected with it; the line joining 
these spots, and which represents the medial band of the elytra, makes an angle 
of about 45° with the suture. This species is very closely allied to C. obsoleta 
Say, and differs from it principally by the thorax being more convex and dis- 
tinctly rounded on the sides. 
' 
TostecorterA Blanch. 
1. T.ventricosa, atra convexa (glabra?) thorace lateribus rotundatis 
serratis medio subangulatis confertim grosse punctato, callo pone medium dor- 
sali levi, disco antice vix obsolete impresso, elytris subsulcatis, confluenter 
minus profunde punctatis, punctis granulo elevato munitis, costis fere ]evibus. 
Long. -9, lat. °57. 
Two females. This species is very different from S. cribosa Lec. (Proc. Acad. 
Nat. Sc. 6, 23), by the punctures of the thorax being smaller and more regular, and 
by the absence of the distinct flattened surface before the middle; the elytra are 
also more distinctly sulcate. Iam inclined to believe that these species are in 
reality furnished with hairs or scales when living, and that the little granule ob- 
served in each of the large punctures of the elytra is the attachment of such 
scales. The fine scattered punctures of the under surface are furnished with 
short hairs, but those of the upper surface are entirely glabrous. 
(2. T.equalis, atra, convexa, thorace lateribus rotundatis vix serratis? 
medio subangulatis, sat dense minus grosse punctato, pilis albidis consperso> 
elytris equaliter sat grosse punctatis, lineis duabus sub-levibus vix distinctis> 
sutura elevata punctis paucis notata. Long. -8, lat. °45. 
One female. Easily distinguished by the absence of any distinct grooves and 
the smaller punctures of the elytra. The punctures of the thorax still retain 
some elongated flattened white hairs, which may originally have been dense; 
the punctures of the elytra furnish excessively short, almost invisible white 
hairs. 
I have adopted this genus, because it has been recently proposed, and because 
I have had no leisure yet to examine critically the group to which it belongs ; 
still, after a comparison between the different species, and some of our common 
species of Phyllophaga Harris, (Ancylonycha Blanch.) I have failed to discover 
any reason why they should be separated. 
A new species from Texas completes the connection, by possessing with the 
thick convex body of Tostegoptera, the exact sculpture of Phyllophaga quercina. 
Erirurpis Burm. 
.) 
1. E.Kernii, nigra, subtus nitida, longe pallide pilosa, supra subnitida, 
antennis rufescentibus, clypeo tenuiter marginato, vix emarginato, thorace lati- 
tudine breviore, lateribus rotundatis basique luteis, disco punctato, breviter 
piloso, linea dorsali sublevi subelevata, calloque utrinque vix distincto, elytris 
plus minusve flavo variegatis, sutura costisque duabus elevatis, interstitis stri- 
gosis et punctatis. Long. -39—-o4. 
Euphoria cernit Haldeman, Stansbury’s Exped. to Salt Lake. 374, tab. 9, fig 10. 
Large numbers of this species have been collected by Lieut. "Haldeman in 
Texas, and by the Boundary Commission at Eagle Pass; the original specimen 
was obtained by the late Mr. R. Kern near Santa Fe. 
The male has the club of the antenne as long as the remaining portion, and 
the anterior tibie armed with two moderate teeth, the third or upper tooth being 
hardly visible. 
In the female the club of the antenne is shorter than the rest; the anterior 
tibie are armed with three teeth, of which the two inferior are longer than in . 
the male. 
In most specimens the elytra are yellow, with the suture, and some spots es- 
pecially near the suture, black; the black spots gradually enlarge until the elytra 
