224 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
two sutures weakly arcuate, strongly, not completely septate; third 
suture more strongly arcuate, indicated by row of setae nearly parallel | 
to distal outline. 
Pronotum 1.24 times as long as wide, widest behind middle, posterior 
outline weakly arcuate, posterior angles rounded; sides nearly evenly 
arcuate from base to anterior, lateral constriction, very broadly rounded 
in front, anterior margin with broad serrations; anterior area with 
broad, rather low asperities In irregular concentric arrangement, with 
rather long, fine hairs; summit low, transverse impression very indis- 
tinct; posterior area shining, punctures rather fine, moderately spaced ; 
median line impunctate, very feebly elevated; disk subglabrous; ante- 
rior area with hairs longer than usual. 
Elytra as wide as pronotum and 1.29 times as long, 1.63 times as long 
as wide; sides subparallel on anterior three-fourths, then broadly 
rounded but with the suture slightly extended to form a subacuminate 
apex; surface shining, with coarse, deep, confused punctures, only 
first strial row impressed; punctures on sides less confused than on 
disk; hair scanty on anterior disk and sides. Declivity originating 
considerably behind middle, steep; suture elevated, rather narrow at 
summit but widened toward apex, with a few granules on posterior 
third; with a distinct sulcus at each side, involving first and second 
striae and intervening second interspace, strongly, deeply confusedly 
punctured; lateral elevations strong, higher than suture above, with 
several moderate granules; sides strongly punctured ; with conspicuous, 
erect, rather numerous hairs. 
Male—Similar to female in habitus; frons shining, broadly trans- 
versely impressed below, convex above, with a rather weak, arcuate, 
transverse carina, punctures coarser, deeper, and not so close as in 
female, with a few moderate hairs; pronotal asperities slightly coarser 
than in female; elytral declivity with sulci deeper, lateral elevations 
higher, and bearing larger granules. 
Type locality —Brazil. 
Host—Undetermined wood. 
Type material—Holotype, allotype, and two paratypes, U.S.N.M. 
No. 56018. 
The type series, consisting of three females and one male, were taken 
at quarantine, April 22, 1936, in a shipment from Brazil in the bark of 
undetermined wood. 
PITYOPHTHORUS SHANNONI, new species 
PLATE 22, FIGURE 36 
Female—Light reddish brown (probably somewhat immature) ; 
1.73 mm. long, 3.10 times as long as wide; with apex of elytra rather 
weakly acuminate. 
