100 INSECUTOR INSCITI^ MENSTRUUS 



subangulate at inner surface of apex ; fore tarsi with a stout 

 and nearly straight tooth which is usually longer than width 

 of tarsus. 



Abdomen formed as in Liothrips, about equal in width to 

 mesothorax. Tube about 0.8 as long as head and about 2.7 

 times as long as basal width, which is 2.1 times the apical. 

 Lateral abdominal bristles dilated at apex, light brown in 

 color, those on segment 9 pointed and nearly as long as tube ; 

 terminal bristles two-thirds as long as tube. 



Measurements of holotype (female): Length 2.52 mm.; 

 head, length 0.353 mm., width behind eyes 0.214 mm., width 

 at base 0.187 mm. ; eyes, length 0.114 mm., width 0.071 mm., 

 interval 0.0G8 mm. ; postocular bristles, length 0.084 mm. ; 

 prothorax, length 0.336 mm., width (inclusive of coxae) 0.562 

 mm. ; pterothorax, length 0.492 mm., width 0.552 mm. ; ab- 

 domen, greatest width 0.569 mm. ; tube, length 0.276 mm., 

 width at base 0.102 mm., at apex 0.048 mm. 

 Antennal segments : 12 3 



Length (\i) 69 72 99 



Width (|x) 51 44 39 



Total length of antenna, 0.575 mm. 



Male (macro pterous). — Length about 2 mm. Color and 

 structure essentially as in female, except as follows : Fore 

 femora concolorous with prothorax and distinctly darker than 

 head. Head 1.5 times as long as wide, cheeks distinctly 

 rounded ; antennge about 1.7 times as long as head. Prothorax 

 only about three-fourths as long as head and nearly 1.9 times 

 as wide as long. Pterothorax distinctly wider than prothorax. 

 Fore femora equal in length to and distinctly narrower than 

 head ; tarsal tooth shorter than width of tarsus. Abdomen 

 narrower than mesothorax. Tube nearly three times as long 

 as basal width, which is nearly twice the apical. 



Measurements of allotype (male) : Length 1.98 mm.; head, 

 length 0.288 mm., width behind eyes 0.190 mm., width at base 

 0.156 mm.; eyes, length 0.100 mm., width 0.061 mm., interval 

 0.059 mm. ; postocular bristles, length 0.076 mm. ; prothorax, 



