NEW SPECIES OF BARK BEETLES—BLACKMAN PAW 
ing sulci shining, confusedly, cribrately punctured as on disk; hairs 
distinctly longer than on disk. 
Male.—Similar to female but somewhat stouter; frons with an arcu- 
ate, transverse carina above, impressed below at each side of a median 
elevation, more coarsely and less closely punctured than in female and 
with shorter hairs. 
Type locality.—Mexico, D. F. 
Host.—Unknown. 
Type material —Holotype, allotype, and seven paratypes, U.S.N.M. 
No. 55990. 
The holotype, allotype, and seven paratypes were taken from the 
bark of “crate wood” (species unknown) at the plant quarantine sta- 
tion at Nogales, Ariz., in two truck shipments originating at Mexico, 
D. F., April 3 and April 29, 1941. 
PITYOPHTHORUS CUSPIDATUS, new species 
Female—Dark reddish brown, 1.7-2.2 mm. long; holotype 2.19 
mm. long, 3.06 times as long as wide. 
Frons flattened on a nearly circular area extending nearly from eye 
to eye, feebly concave in middle, with an indented margin at periph- 
ery, very finely and densely punctured, with fine hairs, long and in- 
curved at outside, shorter and very fine elsewhere. Eye with mod- 
erate facets, nearly half divided by a deep, wide emargination. An- 
tennal club rather broad oval, much longer than funicle, all three 
sutures arcuate, first two partly septate. 
Pronotum considerably longer than wide, widest near base, posterior 
margin weakly arcuate, posterior angles scarcely rounded, sides nearly 
straight and subparallel on slightly more than posterior half, then 
feebly constricted, very broadly rounded in front; anterior margin 
with broad, low serrations; anterior area with nearly regular concen- 
tric rows of moderate asperities; summit moderately elevated, with 
posterior transverse impression rather weak; posterior area weakly 
shining, punctures moderate in size and spacing, interstices reticulate ; 
median line moderately wide, scarsely elevated; hairs scanty and 
minute on disk, slightly larger but still small at sides. 
Elytra scarcely wider than pronotum, about 1.98 times as long as 
wide; sides straight and subparallel on anterior two-thirds, then grad- 
ually narrowed, strongly acuminate at the suture; surface moderately 
shining, strial punctures deep, of moderate size, in nearly regular strial 
rows, first striae moderately impressed, others scarcely at all im- 
pressed ; interspaces narrow, very feebly or not at all convex; scarcely 
rugulose, nearly impunctate on disk, Declivity rather deeply sulcate; 
suture narrow, wider behind, moderately strongly elevated, with mod- 
erately small but distinct granules; punctures of first and second striae 
