158 
BRITISH APHIDES. 
garnet-red. Dorsum convex and ringed, without 
markings or tubercles. Cornicles long, thin, black, 
and usually carried at right angles to the body. 
Cauda yellow and long. Legs pure yellow, with dark 
femoral and tibial points, tarsi black. Wings large, 
somewhat fuscous. Insertions yellow. Cubitus, 
costa, and stigma, pale brown. Other veins stout and 
black. 
The male. 
Indies. Millimetres. 
Expanse of wing 0*210 5*33. 
Size of body 0*040x0*020 1*01x0*50. 
Length of antennas 0*080 2*02. 
„ cornicles 0*012 0*30. 
This sex is remarkably small. Colour uniformly 
umber-brown. Legs and cornicles ochreous. The 
femoral and tibial points darker brown. Antennae long, 
and placed on projecting but not conspicuous tuber- 
cles. Wings very delicate, with grey stigmata and 
veins. Found indiscriminately mixed with the above 
viviparous females. 
Oviparous apterous female. 
In company with the above males some small cin- 
namon brown insects, with broad heads and short, 
stout, yellowish legs were observed. These probably 
were the true females, although no ova could be detected 
within. This absence of eggs might be due to the 
early time of year, viz. the first week in July. This 
species was feeding on the flower-stalks of Lactuca 
muralis at Weycombe, Haslemere. Koch states that 
his Siphonophora lactucw is without tubercles or tufts 
of hair, and also states that it has a dark dorsal patch 
and spots surrounding the nectaries. Thus, not- 
withstanding the similarity of the food-plant I am 
compelled to consider this insect distinct. The trivial 
