161 [July. 



In 1887-8 he took a prominent part with the late Prof. Eiley in the con- 

 ti'oversy respecting the Hessian Fly. In connection with this he made obser- 

 vations on the insect's lift^-history and its numerovis parasites; one very 

 important diseoveiy being that it remained sometimes for two or more years in 

 the pnpariiim (Proc. Ent. Soc. Lond., 1887, pp. xxxix-xlii). In 1909 he discovered 

 and worked out the life-history of an allied pest, Clinodiplosis equestris (Ento- 

 mologist, 1909, p. 217). 



For some years past Enock has been a well-known lecturer on entomological 

 subjects, and although these were cast in a popular form, they bi-ought to notice 

 many scientific facts as to the structure and habits of the insects dealt with 

 which were of great interest. His observations on trap-door sjjiders, the meta- 

 morphoses of Cicindela, Aeschna, Gonepteryx, etc., mainly made during his 

 residence at Woking, are the result of extraordinary patience, often involving 

 all night sittings and watching, in which Mrs. Enock sometimes took part. 

 Some of his lectures he gave in a modified form at the Koyal Society soiree, and 

 before the Linnean and Entomological Societies. He was elected a Fellow of 

 the Entomological Society of London in 1886, of the Linnean Society in 1892, 

 and of the Royal Microscopical Society in 1900. He joined the Birmingham 

 Natural History Society in 1863 or 1864, and remained a member to the last, 

 being for the last few years the " father" of the Society. 



Enock had a very good general knowledge of British plants. He was elected 

 a Fellow of the Royal Horticiiltural Society in 1897. Latterly his health failed 

 somewhat, and this, together with the anxiety caused by the loss of lecturing 

 engagements owing to the war, brought about his end somewhat unexpectedly. 

 He will be greatly missed by a large circle of friends. He leaves a widow, bvit 

 no family. 



STUDIES IN HELOPHORINI. 



BY D. SHARP, M.A., F.B.S. 



10.— HELOPHOEUS (continued from p. 130). 



31. — Helopliorus fulgidicollis Motscli. ? 



The H. fulgidicollis of Motschulsky cannot be identified from liis 

 brief remarks, but Eey and Kuwert have applied his name to a species 

 from Southern France, which may be the one I have before me, though 

 even this is somewhat doubtfuL 



Closely allied to H. mulsanti, but readily distinguished by the less deep 

 striae, so that the interstices are very slightly convex, and but little inequal ; 

 the first one is indeed feebly depressed, and the second somewhat elevated when 

 close to the dark mark across the suture. The sculpture of the clypeus is rather 

 fine and that of the thorax more obsolete. The setosity of tlie upper surface is 

 greatly diminished, so that the insect has a smooth appearance. The thorax is 

 rather short, not curved at the sides, brilliant, dark metallic on the disc, with 

 the grooves, the sides, and the front margin of a yellowish tint passing into 



