MR. W. II. TUCK ON ACULEATE-H YMENOPTERA. 
157 
The most interesting capture to my mind among the Aculeates 
was one of the large family of Ichneumonid® (sub-order Chalcis), 
Smicra sispes. This singular insect is figured and described by 
W. F. Kirby in vol. xv. of the ‘Entomologist,’ and may be known 
by the enormous size of its hind femora. The whole of the 
interesting order of Ichneumonid® are parasitic, attacking the 
larv® of Lepidoptera, Coleoptera, and Sawflies ; also Spiders and the 
grubs of Diptera. In this case Chalcis is parasitic upon the large 
water-fly Stratiomys, of which we have several species. The grubs, 
when full-grown, leave the water to pupate upon the plants above, 
and are then attacked by the parasite. Both the sexes of Smicra 
sispes are fond of the Angelica blooms, which grow near the spot 
they emerge from. 
In Coleoptera the best thing by far 1 had was the Longicorn, 
Phytcecia cylindrica, which is said to be bred in old Willows ; very 
few collectors have seen this beetle alive. I also took Leptacinus 
parampunctatus, which has not occurred since Stephens recorded it 
in the thirties, and Silpha littoralis, which is last heard of in 1862. 
I again record Megarthrus alfinis, and Homalium pygmamm, as 
only again occurring at Tostock, also Choleva Wilkini (new to the 
Suffolk list), and the very local Stenus binotatus. At Lowestoft 
the glossy “ skipjacks,” I’hyllotreta crucifer®, were abundant in a 
market garden near the North Denes, and at Ditchingham (a good 
centre) Coccinella 14-guttata Upon Mousehold I took two 
specimens of that rare Dipteron, Myopa fasciata, which looks like 
a Crabro when at rest upon a flower. At Bungay the fine Trixa 
sestroidea, and at Lowestoft the plumed-fly Anthrax paniscus, both 
I believe new to Suffolk. 
Sawllies were unusually abundant in the early summer, one new 
to the list, Emphytus grossulari® ; also Abia serieea, and Hylotoma 
gracilicornis (Lowestoft). The most striking of these is the Abia, 
which is not uncommon if searched for near the river in wet places. 
The best capture in Hemiptera was the fine Reduvius personatus, 
which flew in to “ light ” in early summer. 
