N... 1310. NORTH AMERICAN THYSANOPTERA— HINDS. 201 



thorax and segments one, three, four, and five of the abdomen; head 

 and other abdominal segments brown. Body apparently weaklj'^ 

 chitinized. 



Head nearly one and one-third times as long- as wide, narrowed in 

 front; cheeks moderatel^^ full and set with a few small spines borne 

 upon small warts; head appears constricted close behind the e^'es, and 

 slightly so at neck; post-ocular bristles well developed: front of head 

 between eyes developed into a prominence bearing the antennaj; ver- 

 tex produced into a sort of hump, which, however, does not overreach 

 the insertion of the antennte. Eyes small, finely faceted, dark pur- 

 plish red, surrounded by pale yellow margins; ocelli present, subap- 

 proximate, borne well forward upon the hump, the front ocellus being 

 upon its vertex; pigmentation around ocelli l)right red. Mouth cone 

 moderatel}" long and slender; labrum aliruptly constricted and sharply 

 pointed at tip. Antennje approximate at base, almost twice as long as 

 head; relative lengths of segments as follows: 



_1_ _§_ _A_ A^ _L iL A^ ^ 

 9.8 13.5 18.1: 16.5 15.8 13.9 12.4 11.4 



Basal segments large, truncate-conical, placed divergently; three 

 clavate; from three to eight the segments become gradually more nar- 

 row. Antenna nearly uniformly brown, except three, w^hich is yel- 

 lowish brown; spines and sense cones quite long, but slender and light 

 colored, so inconspicuous. 



Prothorax about two-thirds as long as head and across outer angles 

 of coxa3 about twice as wide as long. All the usual prominent pro- 

 thoracic spines well developed, but light colored; hind margin not 

 sharply defined. Pterothorax in iniddle slightly narrower than width 

 across fore coxaj; mesothorax short, slightly narrower than metatho- 

 rax and slightly brownish yellow in color. Wings reduced to ver}^ 

 small pads, each fore pad bearing three quite long, blunt spines. Legs 

 of medium length and middle and hind pairs quite slender; fore coxee 

 projecting considerably beyond thorax; fore femora slightly thickened 

 and tarsi armed with a small tooth. All legs pale yellow or pale 

 r)rownish yellow with prominent brown spot within tip of tarsus. 



Abdomen about one and two-fifths times as broad as metathorax, 

 quite stout to eighth segment, then sides converging to l)ase of tu]>e. 

 Tube a})out three-fourths as long as head and one-third as wide at mid- 

 dle as long; sides straight, tapering slightly; terminal spines about as 

 long as tube; spines on sides of al)domen pale, ])ut quite prominent in 

 reduced light. Segment one is concolorous with metathorax; three to 

 five are clear, bright yellow; two, six, seven, and eight are yellowish 

 brown, darkest on sides; nine and tube are darkest brown. 



Described from four females. 



Coff/pe.— Cat. No. 6333, U.S.N.M. 



