ANTHRIBID ®—TROPIDERINI. 161 
Head much longer than high ; rostrum nearly twice as long as the rest 
of the head, the front border arcuate; antennal scrobes subcircular, sharply 
defined, separated from the tip by less than their own width. Antenne 
fully half as long again as the body, slender, first joint globose, second of 
similar length but smaller, and shaped like the apical portion of the sueceed- 
ing third to ninth joints, which are elongate, subequal, apically clubbed, the 
enlarged apex of the ninth forming with the two succeeding, which are half 
as long again as broad, an elongate oval club about twice as stout as 
the stem of the middle jomts. Eyes small, oval, transverse. Prothorax 
apparently quadrate, slightly tapering, scarcely so broad as long. Elytra 
considerably longer than head and prothorax together, gently arched. Legs 
slender, the front pair similar to the others. 
A single species occurs at Florissant. 
SAPERDIRHYNCHUS PRISCOTITILEATOR. 
Pia Bie 12: 
? oO 
Head (including also at least the basal half of rostrum, prothorax, and 
elytra) uniformly, finely, closely, and rather delicately granulate, the granules 
circular except on the elytra, where they show a tendency to become longi- 
tudinal, the cause perhaps of their presenting a pectinate appearance, 
though this is more probably due to the linear arrangement of the long re- 
cumbent hairs, which lie in series about a fiftieth of a millimeter apart; 
the elytra also show faint moderately narrow ridges about one-fifth of a 
millimeter apart more clearly on one stone than on the other. Antennze 
clothed sparsely with recumbent hairs half as long as the width of the 
joints; the joimts.are better shown on the vertical than on the oblique an- 
tenna on the plate. 
Length of body, 75™"; of head and rostrum, 3""; of elytra, 4:5™"; of 
antenne, 12™"; of one of the middle joints of antennze, 1°6™". 
Florissant, Colorado. One specimen, Nos 6000 and 6001. 
TROPIDERES Schoénherr. 
One of the most extensive genera of the family, having about fifty 
species, of which nearly half are found in America, the others in various 
MON XXI——I1 
