INSECTS BRED FROM CYNIPS KOLLARI GALLS. 961 
now to be recorded are :—Rhopalum (Crabro) clavipes, L.; three 
specimens by Mr. Bignell, and four by Mr. Weston. Stigmus 
pendulus, Panz.; five by Mr. Weston. Passalecus insignis, Van 
d. Lind; six by Mr. Weston. Cemonus unicolor, Van d. Lind; 
one by Mr. Weston. Psen pallipes, Panz.; two by Mr. Weston. 
Mr. Walker bred one Passalecus gracilis, Curt., in May, 1874. 
Prosopis rupestris, Smith.—This has not again been met with, 
but I think it should be recorded that Mr. Bridgman says of it 
“The Prosopis has the same marked face—three bars of white— 
in the male as P. communis, and I think can only be that species.” 
Mr. Edward Saunders has expressed a similar opinion. When 
we know that Forster has described ninety-four, and thirteen 
doubtful, species of Prosopis as European, many of which occur 
in the neighbourhood of Aix-la-Chapelle, it is difficult to believe 
that our fauna only includes ten species; probably many of the 
smaller species of these rather obscure bees are still unrecognised 
in this country. Breeding from old Kollari galls may possibly 
give us an introduction. 
LEPIDOPTERA. 
The Lepidoptera bred from these galls have already been 
referred to (Entom. xi. 239, xi. 91). Mr. Weston has bred 
Tortriz viridana, E:phippiphora obscurana, Coccyx splendidulana, 
C. argyrana, and Hupecilia maculosana. Dr. Gill bred Hurymene 
dolabraria, Heusimene fimbriana, Catoptria Juliana, Cryptoblabes 
bistrigella, Ephippiphora obscurana, C. splendidulana, H. jfim- 
briana, and Lemnatophila salicella; the occurrence of the 
Geometer is curious, and the life-history of the knot-horn has 
only lately been made known. In May, 1874, Mr. Walker bred 
one specimen each of C. Juliana and Dasycera sulphurella. 
DIPTERA. 
Two species of Diptera were bred by Mr. Weston. They have 
been identified by Mr. Meade as follows. 
Thryptocera setipennis, Fall_—The female of this species was 
bred. It belongs to the T'achinide, a family containing numerous 
species which are mostly parasitic internally on the larve of 
several orders of insects; a few species have been found in the 
nests of various bees, especially the Fossores. 7’. setipennis is a 
species new to Britain, and Mr. Meade has kindly sent me the - 
