166 THE ENTOMOLOGIST. 
European Leprpoprera.— Mr. Alfred Jahn, Attorney, 
Rudolstadt, Germany, writes :— ‘‘ Every year I breed various 
species of Lepidoptera of Germany and Dalmatia, and should be 
glad if you can induce any of your readers to communicate with 
me, with a view to my exchanging eggs, caterpillars, chrysalids, 
or imagines with them.’ This we with pleasure insert, as 
another stepping-stone on the way to breaking down insular pre- 
judice among British collectors of insects.—Joun T’. CARRINGTON ; 
May, 1886. 
APHILOTHRIX RADICIS, Fab.—I had the pleasure of taking 
several walks with my friend Mr. C. G. Barrett during his short 
stay in Plymouth in 1884, and on three occasions we found 
Aphilothrix radicis galls. The first time was at Radford on the 
13th May, when on passing a grand old oak Mr. Barrett drew my 
attention to a swelling of the bark about three feet from the 
ground; the gall evidently was in a state of growth. I marked 
the spot, in my mind, with the intention of removing the galls. 
In September I duly visited the tree for that purpose, but was 
very disappointed to find, after a four miles’ walk, that a wood- 
pecker had forestalled me. On the 20th May we visited 
Mount Edgeumbe Park, and in our route to join my wife and 
children at the keeper’s cottage, near Picklecombe Fort, near 
which cottage Mr. Barrett observed another tree with two 
galls on it; these were between four and five feet from the 
ground. Again, on the 2nd June, in passing through the 
Walkham valley, we saw three or four galls on one fine old tree ; 
these were over six feet from the ground. Knowing I should not 
walk so far again that season I removed them, and bred the gall- 
maker in April following. It appears by this that A. radicis 
requires one year to mature; this being the agamous form of 
Andricus noduli (= trilineatus), it would require two years to 
complete the cycle.—G. C. BianrLti; Stonehouse, Plymouth, 
February 5, 1886. 
SYNERGUS INCRASSATUs, Hart.—These inquilines I bred in 
April and May from galls of Aphilothriv radicis, taken on the 
2nd June previously.—G. C. BignetLi; Plymouth. 
ToryMus ERUCARUM, Sch.—This very handsome parasite I 
bred from the galls of Aphilothrix radicis, but cannot say 
whether they were parasites on the gall-makers or on the 
lodgers, Synergus incrassatus, —G. C. Bianett; Plymouth, 
