APHIDID OF CEYLON. 71 
Notes on the above-mentioned Aphidide. 
Macrosiphum minutum, nov. sp.— 
Apterous viviparous female-——Examples of some measure- 
ments :— 
Length of body .. 2°34 mm. | Lengthofsiphunculi 0-63 mm. 
Breadth of body .. 1°17 mm.| Length of cauda .. 0°45 mm. 
Length of antenne. . — 
Colour.—Body brownish. Eyes black. Antenne yellowish- 
brown, darker towards the tip. Legs yellowish-white ; 
the tarsi, the tip of the tibiz, and the greater part of the femora 
blackish. Cornicles and cauda black. (Notes from specimen 
preserved in alcohol.) 

Fie. 1.—Macrosiphum minutum, n. sp. 
HINDER PART OF ABDOMEN OF WINGLESS FEMALE (UPPER SIDE), 
Morphological Characters—Body ovate, the dorsum with 
transverse rows of spiny hairs, which do not arise from tuber- 
cles ; the hairs are mostly slightly knobbed at the apex. 
Antenne partially broken off in all specimens examined, 
with a few stout spines. The third antennal joint bears only 
a single sensorium near its base. Frontal tubercles strongly 
developed. 
Rostrum reaching to the third coxe. 
