INSECUTOR INSCITI^ MENSTRUUS 93 



acutely conical and somewhat more heavily chitinized at apex ; 

 iegment 10 longer than 9, divided above; bristles moderately 

 long, pale. 



Measurements of holotype (female): Length 0.893 mm.; 

 head, length 0.052 mm., greatest width 0.093 mm. ; eyes, length 

 0.039 mm., width 0.033 mm.; prothorax, length 0.148 mm., 

 width 0.134 mm.; pterothorax, width 0.174 mm.; abdomen, 

 greatest width 0.204 mm. ; fore wings, length 0.492 mm., width 

 at middle 0.027 mm., near base 0.050 mm. 

 Antennal segments : 12 3 4 



Length (\i) 17 33 34 30 



Width ((.i) 21 20 16 16 



Total length of antenna, 0.193 mm. 



Male (macropterous). — Length about O.S mm. 

 structure essentially as in female, except as follows : Fore 

 tibiae (PI. Ill, fig. 6) slightly prolonged at apex within, form- 

 ing a minute acute tooth. Abdomen with posterior margins 

 of segments 4—8 prolonged into a series of oblique, postero- 

 laterally-directed acute teeth (PI. Ill, fig. 4) ; segment 9 un- 

 armed. 



Measurements of allotype (male) : Length 0.792 mm.; head, 

 length 0.059 mm., greatest width 0.096 mm. ; eyes, length 0.042 

 mm., width 0.033 mm. ; prothorax, length 0.139 mm., width 

 0.145 mm. ; pterothorax, width 0.180 mm. ; abdomen, greatest 

 width 0.195 mm. ; fore wings, length 0.492 mm., width at 

 middle 0.027 mm., near base 0.050 mm, 

 Antennal segments : 12 3 



Length (jx) 18 30 33 



Width ([x) 21 18 15 



Total length of antenna, 0.186 mm. 



Described from 48 females and 2 males taken by T. V. 

 Ramakrishna Aiyar on shoots of Ailanthiis excelsa at Coim- 

 batore, India, in May, 1915'. 



Readily distinguished by the generic characters. The form 

 of the tip of the abdomen of the female is suggestive of 

 Oxythrips. 



