369 
Trichothrips buffe sp. nov. (Fig. 5). 
Female—Length about 1.9 mm. General color black; antennal 
segments 1-3, tarsi, and articulations of legs, usually yellowish brown. 
Head nearly as wide as long, broadly rounded in front; cheeks slight 
ly converging posteriorly; lateral and dorsal surfaces noticeably trans 
versely striate, sparsely, briefly, and scarcely visibly spinose; postocula1 
bristles blunt, slightly longer than eyes. Eyes almost one-third as long 
as head. Ocelli anterior; anterior ocellus scarcely overhanging. An- 
tennz slightly more than twice as long as head, faintly reticulate; seg- 
ments 4—8 concolorous with body; 1 and 3 usually slightly paler, dark- 
ened laterally, the latter pale yellow at extreme base; 2 brownish yellow, 
darkened laterally and basally; sense cones long, slender; segment 3 with 
one on outer apical surface; 4-6 each with one on either side of apex and 
5 and 6 each with a rudimentary additional one on dorsum; 7 with a long, 
sub-apical one on dorsum. Mouth cone long, attaining base of prosternum. 
Prothorax about as long as head, and (including coxz) slightly more 
than twice as wide as long; all spines present, blunt, the pair at the 
posterior angles longest. Pterothorax 
rectangular, shghtly wider than protho- 
trax, and about one and one-third times 
as wide as long. Wings short, attaining 
base of abdomen. Fore femora not en- 
larged; fore tarsi unarmed. 
Abdomen large, heavy, 1.3 times as 
wide as prothorax, narrowing roundly 
from segment 6 to base of tube. Tube 
slightly shorter than head, tapering 
evenly from base to apex. 
Measurements:—Total length 1.87 
mi; head; lenpth .2{- mm., width .20 
mm.; prothorax, length .19 mm., width 
(including coxz) .42 mm.; pterothorax, 
width .43 mm.; abdomen, width .54 
mm.; tube, length .20 mm., width at 
base .094 mm., at apex .042 mm. An- mies 
tenn: 1, 30 w; 2, 56 w; 3, 64 w; 4, 63 Bs — Trichothrips buffe. female, head and 
BO2 f5).6) 63 02-7, 622: 8; 42> total, prothorax. (J. 1 del.) 
.44 mm. 
Male.—Similar to female, but smaller (length 1.5 mm.). Prothorax 
and fore femora not enlarged; fore tarsi unarmed. 
Described from several brachypterous specimens of both sexes taken 
under bark on soft maple trees at Decatur, Homer, and Urbana, Illinois. 
I name this species for Dr. Pietro Buffa, of the Royal University 
of Pisa, Italy. 
