30 INSECUTOR INSCITI.^ MENSTRUUS 



coxae) about 1.8 times as wide as long, surface smooth; an- 

 terior marginal bristles minute, barely distinguishable; mid- 

 laterals small but much longer than anterior marginals, 

 pointed ; the three remaining pairs of bristles blunt, anterior 

 angulars shortest, twice the length of midlaterals ; posterior 

 marginals about three times as long as midlaterals, slightly 

 shorter than posterior angulars. Wings distinctly narrowed 

 at middle ; fore wings clear, with a slight brownish cloud at 

 extreme base and with about eight accessory hairs on posterior 

 margin. Tarsal tooth short, slightly curved, arising at right 

 angles. 



Abdomen slightly wider than pterothorax; tergite 1 with 

 about a dozen anastomozing lines converging to anterior mar- 

 gin ; tergites 2-6 closely transversely striate, the distal tergites 

 very indistinctly so. Tube slightly expanded basally, about 

 five-eighths as long as head, twice as long as basal width, and 

 twice as wide at base as at apex. Abdominal bristles pointed, 

 colorless; terminal bristles brown, slightly longer than tube. 



Measurements of holotype: Length 1.73 mm.; head, length 

 0.230 mm., width 0.187 mm. ; prothorax, length 0.174 mm., 

 width (inclusive of coxae) 0.312 mm.; pterothorax, width 

 0.384 mm. ; abdomen, width 0.420 mm. ; tube, length 0.144 mm., 

 width at base 0.072 mm., at apex 0.037 mm. 



Antennal segments 1 2 3 4 5 6 7 8 



Length (n) 38 51 50 57 54 46 45 32 



Width (\i) 31 31 29 33 29 26 22 14 



Total length of antenna, 0.373 mm. 



Male (macr apterous). — Much like female but smaller 

 (length about 1.5 mm.), and with more slender antennae. Fore 

 legs often swollen ; tarsi strongly toothed, the stoutness of the 

 tooth varying with the degree of enlargement of the fore leg. 



Measurements of allotype : Length 1.51 mm. ; head, length 

 0.210 mm., width 0.172 mm. ; prothorax, length 0.150 mm., 

 width (inclusive of coxae) 0.312 mm. ; pterothorax, width 

 0.329 mm.; abdomen, width 0.322 mm.; tube, length 0.127 

 mm., width at base 0.062 mm,, at apex 0.034 mm. 



