148 the entomologist's record. 



district, on May 5th. May 21st. — Melanippe fluotuata was the special 

 feature of the evening, and series from various localities were exhibited 

 by members ; ab. costovata, Haw., was sparingly represented in most 

 of the series, showing that the form is generally distributed, but does 

 not seem to show any tendency to form a local race. Mr. J. A. Clark 

 exhibited a particularly fine series, including most of the named, and 

 some as yet unnamed, aberrations, and Mr. Prout showed this and 

 allied species from all parts of the world. Other exhibits, were 

 Polia cm, larva? in last stadium, from Yorkshire ova, Mr. S. J. Bell. 

 Aleucis pictaria, bred from ova laid by an Epping Forest $ , Mr. J. 

 A. Clark. Gonepteryx rhamni ova, in situ, Dr. G. G. C. Hodgson, who 

 observed that it is to be generally found in groups of three or more 

 on a single leaf. As he found that these batches usually hatched 

 simultaneously, he suggested that the female evidently lays more than 

 one ovum on a leaf, this being, he believed, contrary to the general 

 impression. Dryas paphia, larvae in penultimate stadium, bred from 

 ova. Aporia cRATiEGi, pupae bred from Kent ova, Mr. L. W. New- 

 man. Polia flavicincta, almost fullfed larvae, Mr. J. Riches. 



Entomological Society of London. — May 1st, 1907. — Exhibits. — 

 Mimetic resemblance in Coleoptera. — Coleoptera collected in Pahang, 

 showed some interesting cases of mimicry between weevils of the 

 genus Episomus and Longicorns of the genus Niconia. Also a speci- 

 men of a Cicindelid, Collyris apicalis, which closely resembles the 

 Heteromerous insect Styrax tri condyloid es : and lastly, a Longicorn of 

 the genus Zelota, apparently a new species, which resembled a species 

 of Amphisternus of the family Endomychidae, Mr. C. 0. Waterhouse. 

 Quedius riparius and Trypodendron quercus. — Specimens of Quedius 

 riparius, Kell., and Trypondendron quercus, Eich., taken at Porlock, 

 Somersetshire, on April 16th and 17th. The former insect was found 

 somewhat sparingly in flood refuse caught by fallen logs lying in one 

 of the mountain torrents which came down from Exmoor; it was to 

 be found only in flood refuse actually over the surface of the water — 

 apparently when the flood refuse is deposited on the banks the insect 

 very quickly leaves it. There are only records of the capture of this 

 insect, by Mr. Kidson Taylor, in Derbyshire, one specimen, and by 

 Mr. Chitty in flood rubbish on the river Beauly, Invernessshire, since 

 Mr. Blatch discovered it at Porlock, in 1896. The Trypodendron was 

 found in the bark and in the solid wood of a small oak bough ; there 

 are few records of its capture outside the Sherwood Forest district. 

 Also Hydro vatus clypealis, Shp., taken on April 14th, at Worle, near 

 Weston-super-Mare. This very local little water-beetle is only recorded 

 from Portsmouth, by Fowler, but has since been taken at Sandown, 

 Isle of Wight, by Professor Beare, and in the New Forest by 

 Dr. Sharp; Mr. Donisthorpe. Dipteron associated with ants. — The 

 larva and pupa of a Dipteron of the genus Microdon, taken in a nest of 

 Formica fusca, at Porlock, last month. A number of larvae were 

 taken, and one of the nests in which they occurred. The ants are 

 stated to nurse the larvae as they do their scale insects (Coccidae), 

 Mr. Donisthorpe. 



