igiy.\ P. VAN DER GooT ; Notes on Indian Aphides. 



179 



The species described above shows much resemblance to the 

 genus Greenidea, Schout., especially by the broad body and the 

 short cornicles. The absence of an acute point to the last abdo- 

 minal segment, however, necessitates it being placed in Trichosi- 

 phum (Perg.) v. d. G. 



Trichosiphum montanum, sp. nov 



Alate viviparous female. 

 Measurements. 



Length of body 



Breadth of body 

 Length of siphunculi 

 Expanse of wings 



Colour. — Head and thorax dark brown : 

 yellow. Eyes red ( ? ). Antennae blackish. 



305 mm. 

 I-I5 ,, 



1-98 „ 

 8-10 „ 



abdomen brownish- 

 Legs light yellow, 



Fig. 3. — Trichosiphum montanum, sp. nov. 

 Hind part of abdomen of alate female (dorsal view). 



X 2i,. 



tarsus and tibia dark brown. Shiphunculi dark brown. Cauda 

 brown. Pterostigma of forewings brown. (Notes from specimen 

 in alcohol). 



Morphological characters. — Body elongate ovate; head, thorax 

 and margin of abdomen with long and fine hairs, the dorsum of the 

 abdomen with shorter hairs. 



Antennae broken off in the specimen examined. The third 

 antennal joint bears some 17 sensoriae on its basal three-fourths; 

 the sensoriae are broadly oval, occupying nearly half of the anten- 

 nal circumference. 



Rostrum reaching to the third pair of coxae. 

 '; *i> Siphunculi very long, thin, cylindrical, with many long hairs 

 and with distinct " spinule-rows " only on the extreme tip. Cauda 

 nearly obsolete, broadly rounded, slightly conical. 



Wings with normal Trichosiphum venation. Hooking-hairs 

 3-5 in number. 



