196 THE entomologist's kecord. 



scolitrforwe was caught amongst a number of males attracted to a 

 virgin female, though unfortunately its sex was not noticed until after 

 it had been killed. It seems doubtful if such cases are exactly parallel 

 to the one we report, as there is no evidence published to show if the 

 attracted female is a virgin. 



j^CIENTIFIC NOTES AND OBSERVATIONS. 



Resting habit of Pykameis cardui, Colias edusa, and Pieris napi. 

 — On July 26th, 1912, in the late afternoon I watched separately, two 

 $ C. edusa dawdling along on the Downs near Beachy Head, evidently 

 in search of something. Eventually, they came to a straggling 

 bramble, and after examining one or two leaves, finally took up a 

 position for the night under one of them, resting head downward. 



On July 28th, 1912, at Abbott's Wood, I saw a specimen of P. napi 

 flying in a short interval of sunshine. Suddenly the sun became 

 obscured and a few spots of rain fell. Instantly the P. napi flew to a 

 bramble bush and took up a position of shelter, head downward under 

 a bramble leaf. 



On August 16th, 1912, in the late afternoon while sitting on the 

 shore under Beachy Head my attention was drawn to a specimen of 

 F. cardui flying about the face of the cliff searching for something. I 

 watched it for ten minutes entering a number of crannies, until at 

 last it found one which suited its purpose and there settled for the 

 night. I put these on record for what they are worth, and may have 

 occasion to refer to them later.— C. W. Colthrup, 141, East Dulwich 

 Grove, S.E. 



Irregularity of hatching of ova of Ennomos erosarja. — In 

 " Practical Hints for the Field Lepidopterist," Part 3, page 15, the 

 late J. W. Tutt refers to the irregularity of hatching of the ova of 

 various species, and remarks on the few reliable recorded observations 

 on the point. It may be as well therefore to record that from a batch 

 of ova laid by a 'i E. eromria, which I took in the New Forest in 

 November, 1911, the first hatched on April 8th, 1912, and the others 

 continued to do so up to June 22nd. The first larva pupated on June 

 9th, and the first imago emerged on June 22nd, the same day that the 

 last ova hatched. — Id. 



Fertility of Liparis dispar. — At the beginning of June 1912, on 

 leaving home for a time, I left a number of pupag of Liparis dispar in 

 a large cage. On overhauling them on August 1st after my return, I 

 found that twelve ^ s and 44 ? s had emerged and that at least 43 

 batches of eggs had been laid. 



The remains of 2 moths shewed 42 that had certainly laid all their 

 eggs, the bodies being shrivelled and the apical wool expended, several 

 that were perhaps less shrivelled than the rest were found, however, 

 to contain no eggs. In two cases the apical wool was more or less 

 present, and the bodies of these two specimens contained eggs. 



On June 3rd, 1913, practically all the young larvje had hatched 

 and it was found that of the 43 batches of eggs 42 had been completely 

 fertile, whilst one small batch contained a good many apparently 

 unfertilised eggs. 



I put this observation on record as such data are sometimes asked 

 for. Of various points it may help to elucidate, it bears on the pro- 



