—-  - lh eile et ae 
194 THE ENTOMOLOGIST. 
April 28th.—Picked up a larva of the glow-worm on the 
Ormes Head, Llandudno. It fed on the mucus and exuvie 
extruded by a snail (Helix), assuming pupahood at the close of 
May. ‘The colours of the pupa-case showed more of rose on the 
under side, blended with the grey. It continued to emit light, 
which became intensified as it assumed the imago stage of exist- 
ence on the 6th of June. 
May 14th.—The first carrot-fly (Psila rose, Fabr.) emerged 
to-day from its pupa-case. It had remained in the soil, under a 
bell-glass, since August of the previous year. The pupa-case is 
pale brown, small and shining, obliquely truncated at one end. 
Dr. Meade tells me that “‘the carrot-fly was named Musca rose 
by Fabricius, who seems to have known nothing of its early 
history.” Meigen says the Psile are found on bushes in hedges, 
but that nothing is known of their life-history. Dr. Meade 
observes further that probably Fabricius may have captured the 
fly on a rose, and therefore he named it after that flower. Curtis, 
I believe, is the first to mention that Psila rose feeds on the 
carrot in the larva state. 
May 16th.—Vinegar-flies (Drosophila fenestrarum, Fallen) 
appeared in all their stages in a vinegar cask. All the Drosophile, 
not a numerous family, breed in sour vegetable matters. The 
most common (Musca cellaris, Linn.) is found in our beer cellars, 
and closely resembles D. fenestralis, but is larger; and has the 
“transverse veins of the wings further apart,” writes Dr. Meade. 
May 22nd.—Collected a handful of disembowelled humble 
bees under sycamore trees. The abdomen is nearly always more 
or less eaten away—probably by the common shrew? I am told 
that Darwin mentions the circumstance of our humble bees being 
decimated every year by mice. I never find the moss bee or the 
red-tailed bee so mutilated. 
May 27th.—The Cardamines, both C. pratensis and C. amara, 
had their flower-buds strangely distorted by the little red larvee 
of Cecidomyia cardaminis, Winnertz. In very swampy places, 
among Sphagnum moss, scarcely a plant escaped. I failed to rear 
the gnats in April from larve collected in May, 1882. Winnertz 
tells us that he bred this little Cecid after repeated failures. I 
trust to be successful another year. 
June 25th.—F lights of glow-worms attracted to our lamps, as 
many as eighteen appearing at one window. Such flights look 
