THE GEOMETRIDES OF AVIMBLEDON COMMON. 61 



occurrence, as exemplified by Antphidaayx betularia ab. doiibledayaria, 

 Oporabia dilutata ab. melana, Enpithecia rectaiu/ulata ab. nifirosericeata, 

 and, in a less degree, by Fidnnia atnmaria and L'lieunatnbia bniniata. 

 The district is hardly a damp one, but it is no doubt affected by the 

 London smoke to a fair degree. I have found that, by working 

 with light, by far the best results have been obtained, but an objection 

 to thus working is that such a large proportion of males are obtained 

 compared with females. The following list contains all the species I 

 have taken here between 1904 and 1907, with the exception of a few 

 Eupitheciids, which I have not yet properly worked out. 



Urapteri/.c sanibncata, common; Epione apiciaria, one 3' beaten 

 from oak, July 29th, 1906 ; Kiimia crataegata, very common ; some 

 specimens have completely yellow fringes, whilst others have the 

 fringes to all wings dotted with brown. Metrocampa maryaritata, 

 fairly common at light ; Ellnpia prosapian'a, ^ s come to light 

 occasionally; Eurymenedolabraria, three 3 s at light, June, 1906; Selenia 

 bilunaria, one (? at, light, August 18th, 1907; Odnntnpeva bidetitata, 

 three, May 1906, and one, June 1906, these are fairly dark ; Crocallis 

 elinguaria, one at light, August 9th, 1904, and one on paling, 

 August 14th, 1907 ; Ennomns alniaria, fairly common at light ; 

 E. fnsrantaria, one 2 , August 20th, 1906, at light ; E. awjularia, two, 

 August 1906 ; Hiniera pennctria, three, November, 1904 (lines on fore- 

 wings darkly shaded), November, 1906, and November, 1907 ; Phu/alia 

 pedaria ( pilosaria), one on paling at Morden, February 11th, 1906; 

 Amphidasi/fi betularia, fairly common. On the average six typical speci- 

 mens are taken to three ab. doiibledai/aria, and one so-called intermediate 

 (see Ent. Bee, xviii., p. 240) ; Hevierupldla abntptaria, one on paling, 

 May 20th, 1905, and one at light. May 28th, 1906; Boarwia repandata, 

 one .at light, July 4th, 1904 ; rather dark, and might at first glance 

 be taken for B. rhowboidaria. B. rhoniboidan'a. probabl)' the 

 commonest insect at light, and very variable in colour; Tephrusia 

 punctidaria, abundant on birch- and oak-trunks in May and June, 

 occasionally at light ; Psendoterpna ci/tisaria, fairly common at light, 

 but never in good condition ; (reonietra papilinnaria, one fine ^ in 

 good condition at light, July 16th, 1905 ; Ci. vernaria, one fresh 

 specimen at light July 8th, 1905 ; Phorodesma bajnlaiia, one J at 

 light, June 24th, 1906 ; Heviithca thi/niiaria, conunon at light; Addalia 

 bisetata, three at light, August 7tli, 1906, and August 11th and 13th, 

 1907; A. incanaria, fairly common on palings and at light; A. aversata, 

 very common as also its ab. spoliata : A. emarginata, one at light 

 July 26th, 1905 ; Cabera piisaria, common ; C. e.vantJiemaria, 

 occasionally ; Panagra petraria, plentiful amongst undergrowth in the 

 woods; Fidonia atnmaria, very common in June, but restricted to 

 certain places on the Common. Several of the J s show traces of 

 m^anism, the dark colour predominating ; Abraxas grossidariata, 

 common; Lornaspilifi marginata, not very common ; Hghernia progem- 

 maria, not uncommon, specimens fairly dark and variable ; 

 H. dcfoliaria common at light and very variable ; Anisopteryx aescularia 

 common ; Cheimatobia bniiiiata, common on tree-trunks in cop., and <? s 

 at light, some of the specimens are very dark brown ; Oporabia 

 dilutata, common at light, specimens with unicolorous dark-brown 

 forewings (ab. vielana) occur ; Eiipitliecia centaureata common ; 

 E. vuhjata, abundant ; E. expallidata, common at light ; E. rectanyii- 



