32 INSECUTOR INSCITI^ MENSTRUUS 



of normal form ; segment 1 broadened at base ; 2 about twice 

 as long as wide; 3 clayate, about 3.3 times as long as wide, 

 inner surface slightly sinuate, outer surface nearly straight; 

 4 and 5 clavate, nearly three times as long as wide ; 6 and 7 

 oblong, pedicellate, three times as long as wide ; 8 three times 

 as long as wide. 



Prothorax about 0.45 as long as head and (inclusive of coxae) 

 about 2.6 times as wide as long ; all usual bristles present, near- 

 ly pointed, midlaterals and the two pairs near the posterior 

 angles subequal and as long as postoculars ; others shorter, 

 the anterior marginals distinctly longer than the anterior angu- 

 lars. Fore wings with about 20 accessory hairs on posterior 

 margin. Fore tarsi unarmed. 



Abdomen about 1.3 times as wide as pterothorax. Tube 

 0.8 as long as head and about 3.4 times as long as basal width, 

 which is about 1.75 times the apical, sides nearly straight. 

 Terminal bristles about 0.8 as long as tube; bristles at apex 

 of segment 9 nearly as long as tube. 



Measurements of holotype : Length 3.26 mm. ; head, length 

 0.426 mm., width 0.245 mm. ; prothorax, length 0.192 mm., 

 width (inclusive of coxae) 0.504 mm.; pterothorax, width 

 0.588 mm.; abdomen, width 0.756 mm.; tube, length 0.342 

 mm., width at base 0.102 mm., at apex 0.058 mm. 



Antennal segments 12345678 



Length (ji) 72 81 129 120 115 106 86 53 



Width (\i) 51 39 39 42 39 35 30 18 



Total length of antenna, 0.762 mm. 

 Male (macropterous). — Much like female but smaller 

 (length about 2.5 mm.) and with more slender antennae. 



Measurements of allotype : Length 2.49 mm. ; head, length 

 0.384 mm., width 0.211 mm. ; prothorax, length 0.174 mm., 

 width (inclusive of coxae) 0.379 mm. ; pterothorax, width 

 0.450 mm.; abdomen, width 0.468 mm.; tube, length 0.307 

 mm., width at base 0.084 mm., at apex 0.049 mm. 



Antennal segments 12345678 



Length (|x), 66 72 117 108 107 99 82 51 



Width (n) 45 35 35 35 34 31 26 17 



Total length of antenna, 0.702 mm. 



