54 ENTOMOLOGICAL SOCIETY 
alescingwith the larger elevated ones. Tibiae densely fimbriate with long 
hairs. 
cT. Ventral concavity shallower than in pertinax, more sparsely punc- 
tate, punctures shallow along the middle; metasternum with a few minute 
hairs each side along posterior margin; first abdominal segment apparently 
without hairs. 
California: Los Angeles (Koebele) ; Long Beach, July; S. 
Monica and Riverton, May 24 (Fall); Reno, Nev., July 2 
(Wickham). 
Type. No. 8221, U. S. National Museum. 
Reared from roots of Typha latifolia, September, 1886, at 
Los Angeles by Mr. Albert Koebele. 
I have designated this form as a variety, since there is some 
doubt of its specific distinctness. It is certainly entitled to 
racial rank, or might more properly be classed as a subspecies. 
Sphenophorus abrasus, new species. 
Form like that of pertinax, with which it closely agrees in many charac- 
ters which will, therefore, not be repeated; color moderately shining black, 
with dark gray alutaceous coating, very sparse, visible on the thorax only 
at the sides and at middle of base and in portions of the elytral intervals. 
Rostrum two-thirds as long as thorax, feebly punctate even at base. Tho- 
rax, except a small strip at sides and a very small space each end of middle, 
which are coarsely punctate, nearly uniformly smooth, sparsely and finely 
punctulate; vittse strongly confluent, nearly obsolete, surface having the 
appearance of being abraded. Elytral intervals alternate in width, but less 
in convexity, discal ones, 2, 4, and sometimes 6, more covered with elevated 
black areas than with gray alutaceous deposit ; 7 and sometimes 6 less con- 
vex and more nearly covered with deposit. Lower surface very sparsely, 
finely and somewhat indistinctly punctate, scarcely more coarsely on last 
segment. 
d\ Ventral concavity shallow, as in typha; apex of pygidium more 
rounded at sides; anterior and middle femora sparsely fimbriate on inner 
surface ; posterior femora subglabrous. 
9 . Abdominal surface very finely and sparsely punctate; pygidium 
with apex more narrowed, sides distinctly curved inward; anterior femora 
nearly glabrous, posterior glabrous; middle femora with very minute short 
hairs. 
Length 12 mm., width 4.5 mm. 
California (itf, i$, Coll. Roberts). 
Type. No. 8222, U. S. National Museum. Types kindly 
presented by Mr. C. H. Roberts. 
More nearly related to pertinax than to typhtz, and quite dis- 
tinct from either by the nearly obsolete vittae which are more 
strongly confluent than in extreme forms of ludomcianus or 
maidis. 
