GARDEN NOTES. 33 
specimen only, Lignell told me shortly before bis decease that 
he possessed but a single example, and I have received it from 
no correspondent. Nor have I noticed them anywhere but in 
this district, upon the Boulder Clay. Here it is by no means 
rare, though the imagines are difficult to rear if collected in the 
autumn, since the temperature and humidity must be very 
approximately normal; a gall gathered on October 7th yielded 
but a single imago on the 9th of the following May, and this 
lived till the 15th. But if left till the spring the imagines and 
their parasites emerge freely; three or four galls brought in 
from a garden hut on April 22nd produced fifteen of their 
makers, Diastrophus ruli, Bouché, on the 17th of the following 
month, when they crawled sluggishly about, making no attempt 
at flight and feigning death upon the slightest provocation, 
though several died by the 20th. On 22nd a female Hurytoma 
appendigaster, Swed., emerged and flew about ina lively manner ; 
a second had appeared by the 23rd, and two more by the 24th, 
with a further half-dozen on the 27th. Two cupreous Torymi 
(which I suppose to be Schrank’s 7’. rubi; they are not 
T. macropterus, Walk.) also appeared upon the last date, and six 
more—apparently co-specific, though bright green—were sub- 
sequently bred, along with a further Hurytomus. At Genera Ins. 
1902, Bouché (Naturg. 1834, p. 163) is quoted as author—olim, 
Htg.—and the range of D. rubi extended to nearly all Europe. 
14. Flies eat. Spiders—Thirty years ago it would have 
caused surprise to learn that flies eat spiders; and the popular 
mind is still sceptical, when shown such in the cabinet. About 
that time, however, Fitch published in this magazine a collection 
of facts upon the subject which finally settled the question, and 
we nowadays have ample material of a like sort; but familiarity 
has not bred contempt. One instance is of particular interest 
as confirming a somewhat vague statement made so long ago as 
1874 (Ent. Annual, p. 124). In May | a noticed a spider’s nest 
close to the front door and boxed it, because interwoven upon 
its strands were six ichneumonidous cocoons, and all the 
spider’s eggs were disappeared. From these six subsequently 
emerged four female and one male Hemiteles fulvipes, a species 
most often raised from cocoon-clusters of the braconidous genus 
Apanteles. With specimens so derived I have carefully com- 
pared the present specimens and find them identical in every 
detail, in spite of so different a diet. Moral: Do not extirpate 
spiders ! 
15. An Egg-Sac.—For the last twenty years (ever since I 
first noticed such a ‘‘ common object of the country” in Ipswich 
in 1894) I have been eager to discover the maker of an ochreous 
and finely woolly, circular or subpyriform envelope of 38 mm. 
attached to some firm fulcrum—usually the stout wood of an 
outhouse or paling—by a slender hair-like foot-stalk fully half 
