New species of the Syrphid genus Callicera. 327 
rather less dense; on the hind femora mainly on the front part, 
but some beneath near the base, and there are some black hairs 
beneath about the tip; the tiny pubescence on the tibiae and tarsi 
is all orange, even on the black joints of the tarsi, but the soles of 
the anterior tarsi bear several short black bristles and there are a 
few on the soles of the hind tarsi, after the basal joint and the base 
of the second joint; claws black at the tip; pulvilli dull glassy 
yellowish. 
Wings with an orange tinge on the base and the fore part, and 
the stigma orange though blackish at its extreme base; veins on 
the basal half orange, and the costal vein orange almost to the tip 
of the subcostal vein, other veins blackish; cubital vein slightly 
arched; upper marginal cross-vein never far from the wing-margin, 
but about twice as far at its slight bend as at its top or bottom, and 
ending in the cubital vein at an acute angle near the wing-tip; 
discal cross-vein placed before the basal third of the discal cell and 
moderately sloping. Squamae dark glassy yellow, with a yellow or 
orange margin, the alar pair with a short dense matted yellow or 
orange fringe, the thoracal pair with a long orange or dark orange 
fringe and with some rather long orange pubescence on the outer 
part of the disc. Halteres small, brownish-orange. 
Length without antennae about 12 mm. Antennae 35 mm. 
Four female specimens of this beautiful fly were taken 
by Col. J. H. Yerbury near Nethy Bridge in Inverness, from 
August 8th to 21st 1904.* Altogether he saw about ten 
specimens, but found them very difficult to follow with the 
eye when they were on the wing; he saw the first specimen 
on August 3rd, but only as a strange reddish insect paying 
fleeting visits to the pine-stumps; this insect, however, 
attracted him so much that he made special search for it, 
and on August 8th after a long day’s work he was returning 
home, and while hesitating about taking shelter from a 
shower under a big pine-tree he became aware that an 
Eristalis-like fly was flying up and down the trunk; after 
one abortive attempt at capturing it, the fly returned and 
was boxed while sitting on the trunk; on August 16th 
he missed two specimens which appeared to be yellower 
in colour and which might have been males, but he took 
another female. He mentions in a letter to me an in- 
teresting chain, “ hunting for the headquarters of Laphria 
flava showed me where Xylota florum occurred in numbers, 
* At the same locality, on August 9th, 1911, Col. Yerbury took 
two more females.—J. EH. C. 
