REPORTS. 197 



Les Gendts, Cdteh 



Mr. A. Collenette reports having examined a well on 

 the above estate, which shewed a large vein of thoroughly- 

 decomposed amorphous diorite dipping north-east. The clay 

 resulting therefrom is impervious and retains throughout its 

 blue colour, which, in Mr. Collenette's opinion, indicates 

 that the decomposition took place under water. 



C. G. De La Mare, Sec. Geol. Sect. 



KEPORT OF THE ENTOMOLOGICAL SECTION. 



Owing to wet and stormy weather, the past season has 

 been an unfavourable one for the entomologist. I have no 

 record of the occurrence of Acherontia atropos (Death's Head 

 Moth) and very few specimens of Sphinx Convolvuli (Con- 

 volvulus Hawk Moth) have been seen. 



Many of the commonest butterflies were very scarce, 

 and the Clouded Yellows, C. Hyale and C. Edusa, did not 

 put in an appearance. The larvae of Melitcea Cinxia were 

 not in their usual abundance on the cliffs at Moulin Huet 

 and the Gouffre. On August 16th, I captured a fine female 

 specimen of Gnophria quadra (Four-spotted Footman). It 

 was resting on an ivy leaf on the wall bordering the Vallon 

 Estate. The only previous record of this species is the finding 

 of two larvae about 16 years ago on some old lichen-covered 

 apple-trees, close to the spot where this specimen was captured. 

 The Rev. F. E. Lowe has again been successful in breeding 

 specimens of both Dianthcecia conspersa and D. capsincola 

 from pupae dug up at the roots of their foodplants. Colli- 

 morpha Hera (Jersey Tiger Moth) was unusually late on 

 the wing ; the Rev. F. E. Lowe reports they were still 

 flying on September 19th. 



I am pleased to be able to record the capture of a 

 second specimen of that beautiful beetle Calosoma sycophanta. 

 It was taken by one of Mr. Sharp's schoolboys on July 10th. 

 Mr. E. D. Marquand reports two new stations for that curious 

 marine Hemipterous insect, Aepophilus Bonnairei, viz., Fermain 

 Bay and Grand Havre. 



In last year's report I mentioned the capture of a curious 

 marine fly, of which I had taken specimens both in Jersey 

 and Guernsey, and which had been named Clunio marinus. 

 These may be rightly named as regards the Jersey specimens, 

 but having taken a number of examples in rock-pools at 



