192 Memoirs of the Indian Museum. [Vor VE 
that we found of this species on the peaches as “ return migrants’’ are almost 
exactly similar. however. It is possible, therefore, that at the time Miss Patch 
collected her specimens, those generations were being developed which later fly off 
to other hosts in company with the males. 
The antennal proportions of such a return migrant collected in December are as 
follows :— 
BOR IV VE MI. 
25 18 16 9+33 
Weng ENS 0 710 0°30 0:26 0°'I5+0'55 mm. 
The size is also larger as seen from the body measurements given below :— 
Body Re ar OT SEO Seaton 
Antennae 5 % So mm. 
Wing expanse .. . JAVA S OM 
Cornicle we ae 00200. 
Cauda x se ee OA ER 
The number of sensoria, instead of being 13 or 14, is from 17 to 24 on article III 
and 3 to 4 on IV. | 
The males that were collected on the peach at the same time are much smaller. 
As I am not aware if any description of these males has ever been published I give a 
detailed one below. The oviparous females were not to be found in December ; 
probably they form in January, but observations were not carried on into that 
month. 
The alate male is much smaller and narrower proportionally to the alate vivi- 
parous female, along with which it migrates to the peach plant in December. 
Head pitch black, shining ; about twice as broad as long and broader than the 
prothorax, which has a conspicuous black band on its anterior margin and two spots 
latero-dorsally behind. x 
Antennae about as long as body, black; 3rd article very stout, about half or 
three-fourths of the 6th, with numerous sensoria. 
Length proportions :— 
00ER JO V. VI. 
AX 14 22 6 +28 
LOUIS 2 7035 0'23 0'20 ‘10+0°46 mm. 
The sensoria are scattered all round ; their numbers are 25 on III, 19 on IV and 
8 on V. : 
Thorax and wings similar to alate viviparous female, only smaller in size. 
Abdomen, colour light yellow at margins outside the lateral grooves, in the middle 
dark green ; strongly segmented so that the shining abdominal rings appear green- 
banded. Post-cornicular segments concolorous with the edges. 
The pattern consists only of 3 very faint lateral spots and faint rusty areas 
behind the cornicles. 
The end of the abdomen appears truncated on account of the swollen penultimate 
segment bearing the genital armature. 
ee lé di és = 
