98 INSECUTOR INSCITI^ MENSTRUUS 



greatest width 0.300 mm. ; tube, length 0.120 mm., width at 



base 0.065 mm., at apex 0.033 mm. 



Anteinal segments : 12 3 45678 



Length (|i) 36 46 50 48 47 42 39 25 



•Width (n) 26 26 26 27 23 21 19 11 



Total length of antenna, 0.333 mm. 



Described from 5 females and 3 males taken by T. V. 

 Ramakrishna Aiyar on shoots of Ailanthus excelsa at Coim- 

 batore, India, in May, 1915. 



The species bears a close resemblance to those of the genus 

 Haplothrips, but may be known by the long, pointed mouth 

 cone. 



ARRHENOTHRI'PS, new genus 



Head much longer than wide, vertex broadly rounded in 

 front, not or only slightly produced ; cheeks without spine- 

 bearing warts, subparallel. Eyes rounded, prominent but not 

 protruding. Ocelli anterior in position, the median ocellus 

 overhanging. Antennse eight-segmented ; fifth segment slightly 

 shorter than the fourth and longer than the sixth. Mouth cone 

 acute, surpassing middle of prosternum ; labial palpi much 

 shorter than maxillary palpi. Prothorax enlarged in the 

 female and equal in length to head, shorter and not enlarged 

 in the male ; fore femora of female greatly swollen, those of 

 male only slightly so ; both sexes with tibiae slightly produced 

 at apex within and tarsi with a large stout tooth. Pterothorax 

 narrowed behind. Wings broad and of equal width through- 

 out, closely fringed. Tube long (0.8 the length of head in 

 the genotype). 



Type: ArrJienothrips ramakrishncc, new species. 



This genus is allied to Gynaikothrips and is thus a member 

 of the large Liothrips complex whose species, almost without 

 exception, are phyllophilous. In no genus of this group, how- 

 ever, are the fore legs and prothorax of the female enlarged 

 and swollen ; it is invariably the male which possesses these 

 characters. The presence of the large tarsal tooth in both 

 sexes is another important character. 



