288 
HORN EXPEDITION—COLEOPTERA. 
Another species of inconspicuous appecarance, but which is evidently distinct 
from any Leptops previously described. Its general aspect is very uneven and 
rough, but none of the tubercles on its elytra are very large. All the elytral 
interstices are furnished with tubercles, which in the front part of the elytra are 
close-set knobby inequalities rather than defined tubercles. The tubercles of the 
seventh interstice (the insect being viewed from above) seem to project laterally, 
forming a wavy edge to the elytra, and of these the third from the base is a little 
more ])rominent than the rest. The conical tubercles are as follows :—The sutural 
interstice has a conspicuous one at the summit of the posterior declivity and a very 
small one close in front of it; the third interstice has two conspicuous ones in 
front of the posterior declivity, and two very small ones on the face of the 
declivity ; and tlie fifth interstice has two conspicuous ones in front of the posterior 
declivity (the hindmost of these two close to the summit of the declivity). The 
antenme are more slender than those of the preceding species, the basal two joints 
of the funiculus almost equal to each other in length and evidently longer than the 
rest. 
Storm Creek, Stevenson Creek. 
CATASARCUS. 
C. farinosus, sp. nov. (2). Sat breviter ovalis (minus breviter quam 
C. transversalis^ Germ.) ; niger, antennis pedibusque piceo-rufescentibus ; squamis 
albis vestitus ; I’ostro carina mediana nitida instructo ; fronte inter oculos impressa ; 
funiculi articulo basali quam 2^'® breviori ; prothorace brevi crasse vermiculato- 
ruguloso ; .scutello vix manifesto ; elytris seriatim foveato-punctulatis, interstitiis 
(priesertim 4° 7° 8° O'’ 10° que) anguste convexis et interrupte rugulosis (fei'e 
subtuberculatis). Long, (rostr. inch) 5—6 1. Lat. 2|—34 1. 
This species belongs to the section of Cntasarcus, having elytra devoid of 
spines or well-marked tubercles. Even the posthumeral tubercle is scarcely 
marked. In one example it is apparently absent, being so slight as to be concealed 
by the scales; in the other (which is more abraded) the lateral edging of the elytra 
ceases a little below the shoulder abruptly, thus forming a feeble tooth. Probably 
a perfectly fresh specimen is densely covered with white scales ; both the specimens 
before me are abraded and their scales are irregularly patchy. The rostral carina 
runs back to the level of the front of the eyes, and the rostrum is somewhat slender 
and elongate for a Catasarcus. The scrobes are sinuous and well-defined, being 
less deflexed than in most Catasarci and more like those of a Leptops, to which 
genus I should be disposed to refer this insect were it not that its claws are those 
