OO- [.Taniiarr, 



Lminn Isles. Mr. Carv, pupae <<{ tlu* clieese-fly, Plophila cdsei (Dipt.). 

 Mr. Biinnett, tlie black ubernition of Cuccinella hierofjIypJnca (Col.) from 

 Kfstou with tlie type. 



S.-plember ■2Snl, 1923.— Mr. K. G. Blair, B.Sc, F.E.S., President, in the 

 Chair. 



An Exhibition of Lantern Slides. Mr. Tonge, the resting' habit of 

 several British Geometers. Mr. Main, season.al forms of Fieria iiapi, stages and 

 jiupal chamber of Timrtrcha laem/ata (Col.), ravau:es and metamorphoses of 

 i)o/2 7c/asp. (Col.). Mr. Bedford (Eastbourne), rare species (Lep.) captured in 

 Sussex, local birds, rare and Lical orchids, abnormal growths, etc. Mr. VVilhy- 

 combe, Ciirysopd, Kfiw.nibins, Si/rphui^ and Stratloinys. Mr. Colthru]), 

 positions of rest of butterfii -s and moths, and habits of birds. Mr. Grosvenor, 

 many species and forms of the genus Terias from India. Mr. Bowman, a bred 

 8 'ries of Tricopteryx carpinata from Oxshott, with numerous forms having 

 w-11-emphasised transverse lines on the fore-wings. Mr. H. J. Turner, three 

 sp 'cies of Uac'es (Lap. Het.), E. iinperialis, New York, E. yrdndis, Sa > Paulo, 

 a id E. <p.? from Cordoba, Argentine, sent by Mr. Liudeman, with coloured 

 jihotograplis of the larva'^ of tlie two last. 



Oduber Uth, 19i>0. -The President in the Chair. 



Mr. J. B. Farmer prfsented a hex of British (^donata to the S'n(it1_>'s 

 collection. Mr. Ililey, on behalf of Mr. South, for Mr. Daltoii, abiaTations of 

 (I) Ayriades curidon, between ab. albicans and var. aprnniiia ; [2) Ili/iPiiiia 

 leiicopJiaearia, conspicuous wavy lines on a clear ground ; (u) dark grej'-browu 

 liuDulus piniaria. Mr. Turner, a small race of Zyyaena filipcndulae from Box 

 Hill, with (jth spot very feebly developed, including ab. cytisi and other 

 aberrations. Mr. Newmui, living full-l'ed larva oi Jlyh^icus pinasfri from 

 Suffolk. Mr. Ij. S. Williaius, three Flrris rapae showing a discai spot on the 

 hind-wings, and a striate asymmetrical form of Bumieui phlaeas. JMr. Johnson, 

 banded females of I'ieris 7iapi from Ireland, one being yellow-suffused ; confluent 

 Zyyaena trifolii from Folkestone, and a gynandromorph of P. rapae. 

 Mr. Grosvenor, Pleris canidia (various forms), P. krueperi, and P. rapae from 

 India. Mr, Mera, Pulia c/u' closely approaching form olicacea. Mr. Blenkarn, 

 ( V//7//>«s M^Ye/w and other Coleoptera from Poole. Seasonal notes from several 

 meaihers. — IIv. J Turxkr (Hon. Editor of Proceedinys). 



E-ESTING POSITIONS OF SOME NEMATOCEEOUS DIPTERA. 

 BY F. AV. EDWARDS, B.A., F.E.S. 



All students of Diptera and of Medical Entomology are familiar 

 with the fact that many Hies, such as the malarial and non-malarial 

 moscpiitoes, the tse-tse Hies, and some otliers, may be recognised in life 

 at a glance by the positions in which they hold their wings and legs 

 when in a state of rest. Systematists have made some use of these 

 points, Meigen in many of his generic diagnoses laying great stress cux 



