130 Journal New York Entomological Society. [Voi. xxiii. 



the head, the pedicellate eighth antennal segment, the reduced an- 

 terior marginal bristles, and the color. 



Trichothrips terminalis new species. (Plate IX., fig. 2.) 



Female (brachypterous). — Length about 1.9 mm. Color brown; head, 

 apical abdominal segments, and legs except for basal half of mid and hind 

 femora, nearly yellow ; antennae at base concolorous with head, gradually 

 darker to segment 5 which, with 6-8, is blackish brown. Hypodermal pig- 

 mentation bright carmine. 



Head slightly longer thaia wide, truncate in front, constricted behind to 

 within a short distance of the hind margin, thence slightly widened ; posterior 

 part with faint anastomozing lines of sculpture and a few short, stout pines ; 

 postocular bristles about half the length of head. Eyes small, external margin 

 only equal to one-fourth the length of the head. Ocelli present but indistinct, 

 the anterior one directed forward, the two posterior just in front of the middle 

 of the eye. Antennee slightly more than twice the length of the head ; segment 

 I long, slightly tapering; 2 longer and narrower; 3 the longest, widest in 

 its apical fourth, wider than 2 ; 4-7 subclavate, 8 distinctly separated from 

 7 and with a broad pedicel; sense cones: 3, 1-2; 4, 2-2; 5, 1-1+^; 6, 1-1+^; 

 7 with one on dorsum near apex. Mouth cone rounded, reaching about 

 half way across the prosternum ; labrum slightly surpassing labium. 



Prothorax about .84 as long as head and (inclusive of coxte) about 2.4 

 times as wide as long ; all usual bristles present, pointed ; posterior laterals 

 about as long as postoculars ; anterior laterals and anterior marginals about 

 half as long ; 5 coxal bristles, the anterior being fully three times as long as 

 the others and equal in length to the anterior laterals. Pterothorax narrower 

 than prothorax, sides irregular but more or less arcuate. Wings reduced to 

 very small pads. Fore tarsus with a stout, slightly curved tooth. 



Abdomen large. Tube .8 the length of head, twice as long as basal 

 width, and slightly more than twice as wide at the base as at the apex ; color 

 yellow, tipped with gray. Terminal bristles brown, the longest about three- 

 fourths the length of the tube; other abdominal bristles yellow. 



Measurements of holotype : Length 1.88 mm.; head, length 0.228 mm., 

 width 0.223 mm.; prothorax, length 0.192 mm., width (inclusive of coxae) 

 0.456 mm.; pterothorax, width 0.432 mm.; abdomen, width 0.541 mm.; tube, 

 length 0.182 mm., width at base 0.09 mm., at apex 0.044 nun.. 



Antennae : i 2 



Length (fi) 48 55 



Width (ix) 48 36 



Total length, 0.457 nim. 



Male (brachypterous). — Slightly smaller than female (length about 1.6 



mm.). Coloration similar. Prothorax distinctly longer than the head and 



(inclusive of coxae) twice as wide as long. Median line heavilj cbitiniztd 

 in basal five-eighths. Fore tarsal tooth stout, triangular. 



