NOTES ON APHIDIDH FOUND IN ANTS’ NESTS. 51 
ground in ants’ nests and become winged, but where the alate 
females go to we do not at present know. 
Genus Hyalopteroides, nov. gen. 
Body elongate oval. Antenne about half the length of the body. 
Head with marked frontal tubercles and a median enlargement. 
Proboscis rather short, not reaching the second coxz. Cauda large 
and bluntly acuminate. Cornicles small, about one-fourth the length 
of the cauda, and with corrugations. A marked space between the 
base of the antennz and the large compound eyes. 
This genus is founded on the apterous viviparous female 
taken in an ant’s nest. It comes very near Hyalopterus, and 
differs from that genus in having the processes on the head. 
P. van der Goot (‘ Overgedrukt nit het Tijdschrift voor Ento- 
mologie,’ deel lvi, 1913, p. 107) forms a genus Longicaudus for 
Koch’s Hyalopterus sphondylii and Walker’s Hyalopterus trichodus ; 
but in both of these species the head is as in Koch’s Hyalopterus, 
so that this subterranean species cannot be included in it. 
Hyalopteroides pallida, nov. sp. 
Apterous Viviparous Female—Pale green; apices of antenne, 
proboscis, and the tarsi smoky. Antenne about half the length of 
the body, thin, arising from small but prominent frontal tubercles. 
Basal segment large and irregular in outline; second small, barrel- 
shaped; third longer than the fourth, with three to four rounded 
A. a aes 
Hyalopteroides pallida, nov. sp. 
A. Head and antenna; al. Sensoria of segment 3; a*. Proboscis. 
B. Cornicle; C. Cauda. 
sensoria near the base; fourth a little longer than the fifth, which 
has the usual subapical sensorium; sixth about as long as the fourth 
and fifth, its basal area not quite half as long as the flagellum. A 
median projection in front of the head. LHyes large, black, situated 
some little distance behind the base of the antennz. Proboscis pale, 
dusky at the apex, not reaching to the base of the second pair of legs. 
Cauda very large, at least four times as long as the cornicles, pallid, 
finely spinose, with four bristles one side, three on the other, and a 
curved subapical dorsal one. Cornicles pale, very small, not one- 
