144 General Notes. [ February, 
of interest, therefore, to find that the bee-flies bear a similar rela- 
tionship of parasitism to the latter, and that the characterization 
of the fauna in these two groups is really dependent upon the 
presence of or locusts as well as kee - rich representation of 
e burrowing Hymenop 
EReviedin what had sate “published as to the lar- 
val habits of the true Bombyliids, we concluded that 
while there was strong presumptive evidence that 
they preyed on bee larve, there was yet no proof, 
and that the locust-egg-feeding habit we recorded, 
weakened the presumption. Since the publication 
lius,’ by T. A. Chapman, M.D., in the Extomolo- 
gists’ Monthly Magazine for February, 1878 (Vol. 
/_ ices —Sys- ae p. 196. Mr. Chapman gives abundant pros 
wchus oreas; Of the parasitism of the European, 4. major 
pur (after Ri ae labialis. He records some obasevitics 
oF on the oviposition of Bombylius, the small white egg 
being thrown with a short jerk against the earth.near where the 
food of its future larva presumably occurred. This would also imply 
that, as in the case of the blister-beetles, the newly hatched larva 
must seek its food, and strengthens our suspicion that it will be 
found to be much more active than the mature larva. Mr. Chapman 
very fully describes the 
mature larva and the pu- 
pa, and his descriptions 
show that in all essen- 
tial points the larva of 
Bombylius accords with 
those of Triodites and 
j [the 1st thoracic] and is 
retractile; it is very 
Fic. 3.—Systechus oreas ; ep antenna, side — a center iS Oc- 
view, to left; do. top view, to right cupi Sat by a prominent 
wedge-shaped portion, the point of the wedge being downwards, 
and immediately in front of the mouth. ae beneath 
this are two black, very sharp, setiform jaws (?); on each side is a 
papillary eminence (antenna?) of three joints set in a circle of 
softer tegument, and immediately below project downward on 
each side two large palpi (labrum ?) looking like jaws, but having 
a vertical, not a lateral mobility, on the anterior face of each of 
these there is a palpus of some length, apparently unjointed, set 
in acircle.” It will thus be seen that he homologizes the parts 
