GARDEN NOTES. 247 
appeared on May 29th, since which date, Mr. Davis tells me, 
another has emerged. The other was winged, and proves to be 
an Ophionid, Canidiella subcincta, Grav., which I have rather 
doubted being a beetle parasite in my British Iechneumons; such 
is thus proved to be the case. The later emerged on May 30th. 
Pezomachus is well known to (at least, sometimes) be hyper- 
parasitic through another parasite, and it may here have been 
so also, though there is at present nothing to confirm such a 
circumstance. 
19. A Disappointed Bug. — Aphidides have been no more 
than normally numerous this year, though they are always all 
too common on rambler roses. On one of these was a nymph 
of Anthocoris sylvestris on July 18th, and an examination showed 
him to be tickling a female of Siphonophora rose with his rostrum. 
But the Aphis was already dead and its skin indurated by the 
enclosed Aphidius larva, who had so thoroughly done its work 
that the bug poked in vain with its rostrum to find a weak spot. 
First it tried point blank upon the dorsum ; next the sides were 
tackled ; and finally the rostrum was pushed as far as it would 
ao beneath the Aphis, while Anthocoris practically stood upon 
his head in his zeal. All was vain; and with a drooping anus 
the bug sought pastures new. His persistency seemed, however, 
to suggest that times were when he had had good meals from 
similar objects, and I accordingly accounted him a friend to be 
fed on unparasitised Aphids. 
20. The Oviposition of Fenus jaculator, L.—Very little of 
the habits of this genus of Hymenoptera, usually placed in the 
Evaniide, is known; nor have I seen the present species here 
before in the course of a dozen years’ residency. In the sixth 
of these notes (‘ Entom.,’ 1914, p. 217) is the account of a dead 
willow; and at this trunk on July 25th last I detected Lissonota 
femorata, Perithous mediator, and Nematopodius formosus, all 
ichneumons bent on laying eggs in Fossors’ nests. With them 
was a single Fenus, whose apically white-banded terebra was as 
long as the whole body. It was minutely investigating all the 
Fossors’ holes in the trunk by flying slowly and steadily up and 
down, obliquely and across, holding its body and terebra hori- 
zontally the while, its anterior legs tucked close to the thorax 
and the hind ones depending nearly vertically. The antennz 
were thrust straight forward from the slightly upturned head, 
and it was perfectly evident that a touch from them upon the 
entrance to the burrows was sufficient to ascertain whether they 
were or were not suitable for its purpose. ‘Two or three times 
the insect settled, detached its spicula from the terebra, and 
thrust the former its full length into a boring, while the valvule 
remained at right angles to the trunk. Once an already sealed 
boring was discovered, and this had to be pierced, a process 
accomplished after some hard pushing, without any of the 
