GRANARY WEEVILS: S. GRANARIUS AND S. ORYZA. 47 
of development, which belongs to the genus Piezostethus, but 
does not agree with any of the British species, though it is 
nearest P. rufipennis, Duf. (= ? cursitans, Fall.). As might be 
expected, innumerable Acaride occurred; one very fine, dull 
brown, beetle-like Gamasid was very conspicuous, but was only 
found in the Stambourne store. There is certainly much yet 
left to repay a detailed study of Calandra and its surroundings, 
both as to which of the above-mentioned species are sitophagous 
and which predatory, also as to parasitism. 
The increase of these Calandrid@é and their allies is naturally 
limited by internal Hymenopterous parasitism. I have met with 
two (probably three) species of Chalcidide, and Curtis knew another. 
Abouta dozen Cerocephala formiciformis, Westw., W1k. (= cornigera, 
W1k. = Lesthia vespertina, Curt., Hal. = Epimacrus rufus, Wik. = 
Lagynodes pallipes, V oll.), or a very closely allied species, were bred. 
This is very interesting. Walker says of this, the only species of its 
genus, “‘ It is semi-domestic and of rare occurrence, and may be 
parasitic on a house insect. I have seen it on paper at Killarney, 
in North Devon, in Lancashire and near London.” (Entom. vi. 
250). Haliday’s figure of the species with details is there given, 
as also it was at ‘Entom.’ vol. i., pl. n., fig. 4, and in Part vi. of 
Walker’s ‘Notes on Chalcidiz.’ In this figure the female is 
represented as wingless; my specimens are of both sexes, and in 
all the wings are fully or partially developed. According to 
Forster, Ratzeburg’s Sciatheras trichotus is a synonym. This 
is described and partly figured in ‘ Die Ichneumonen,’ vol. ii., 
p- 209, pl. 11, fig. i. Ratzeburg remarks on its rarity; he only 
knew a single specimen, which being bred from worm-eaten ash 
was probably parasitic on Hylesinus fraxini. This specimen was 
a winged female, and the remarkable tuft of hairs on the wing is 
well figured. Although Dr. Mayr had not the species, I am 
indebted to him for the identification. The other chalcidideous 
parasite, of which I have over fifty examples, is a species of 
Pteromalus. Dr. Mayr writes me that he has over 10,000 
specimens, mostly bred by himself, but the elucidation of such 
material is a work of long time and of great labour. Indeed, the 
Pteromalide seem beyond all control. Walker described upwards 
of 600 species, and I now have a number of his unpublished 
manuscript descriptions, mostly species of Pteromalus, which are 
quite useless, or rather would serve to make confusion worse 
