68 



JULY 24th, 1920. 



Field Meeting — Byfleet. 



Conducted bij Stanley Edwards, F.L.S., F.Z.S. 



There was only a small attendance, possibly owing to the 

 previous night having been very wet, as was the early morning. 

 However, the weather clearecf up, and a most enjoyable, sunny 

 afternoon was spent along the canal bank and the adjoining low 

 ground. Insects were decidedly scarce, but many useful species 

 were obtained by the members, and a pleasant tea was obtained at 

 the " Green Room," a private restaurant near the station. 



Mr. Lucas reported : " It was hoped to get Pancrjia cognata, 

 Eamb., which was captured (one female) on a previous excursion 

 (July 23rd, 1904). The date was correct, but the only specimens 

 captured were two females of Paiiorpa coiiiwiinis, Linn. Dragonflies, 

 which were not so much in evidence as they should have been, 

 were: FnaUafiuia ci/athijicyiDii, Charp. (common); lachnitra elecjans, 

 Lind. (rather common) ; Ai/rion imella, Linn, (a few) ; Calopteriix 

 ^plemlens, Harris (one female) ; Aesclma (jrandis, Linn, (only one 

 captured, but apparently others seen) : A.juncea, Linn, (one teneral 

 female). Amongst the plants : A few examples of Inipatiens fulva, 

 Nuttall, were found bearing the brilHant orange blossoms (in the 

 usual .way, practically all the flowers are cleistogamous) ; Erio- 

 phoiiDii vaf/inatiiin, Linn., was obtained in fruit in boggy ground 

 near the cana,! ; PotanioijetoH hetero/Jn/lliis, Schreb., was found in 

 flower, as well as in fruit, in the canal. The three plants named 

 are not of the commonest." 



Messrs. G. S. Robertson and Alfred Sich reported the occurrence 

 of Pieris iiapi, P. brassicae, hlpuieiiJuie tithoniis, P. jnrtina, Plebeius 

 ae(i(>n, Aridalia inornata, Pseudotrnpna prninata, Cosymbia pendu- 

 laria, and larv;e of Cernra vinula, Orgijia antiqua, Loniaspilis 

 marijinata, Cabera pusaria, and Teplirosia piincttilaria, among the 

 Macros. Among the Pyrales were Cranibna idiginosellus (common 

 in the heathery bog), C pascuelliis, C. tristellns, C. cuhnellns, C. 

 inqiiinatellus, Scoparia o)ii})ii/i(aiis, Scopula ferruf/alis, and Hydro- 

 cawpa stagnata (a few). The more notable micros reported were 

 ColeopJiora anatipennella, Tjtlmcolletis alnifoliella, Cerostonia liicella ; 

 mines and larvse of Buccnlatrix frangidella on Rhamnus franyula, 

 and Elachista cerusella larvae mining in leaves of Phraymites 

 coiiniiimis. 



