104 the entomologist's record. 



There may be a village, but I have never discovered it. It is situated 

 on the borders of the Swiss Jura, just where the rail, by a tunnel, 

 passes through some low hills, which separate the valley of the Orbe 

 from the valley of the Venoge. The hill which is thus pierced is 

 splendid hunting-ground, traversed by rough tracks through scrub of 

 beech and oak, between rocks and boulders. It can be reached by a 

 path which ascends to the left of the tunnel's mouth, from the station 

 platform. For about three-quarters of a mile on either side of the line, 

 which runs in a valley, the ground is nearly level, the hills rise gradually, 

 and are well clothed with woods, composed chiefly of oak and beech, with 

 a considerable sprinkling of aspen-poplar. These woods extend for 

 miles, and are known by various names ; they are the favoured haunts 

 of the glorious IAmmitis populi, Apaturids, and the large Satyr — 

 Satyrus circe. In 1905 and 190G I spent several days in making 

 expeditions to this locality, either from Lausanne or Yverdon, and 

 captured, besides poor specimens given liberty, some fineL. populi, all 

 tending towards var. tremulae, and about 50 Apaturids — Apatura iris 

 and var. iole, A. ilia and var. clytie and ab. iliades, and about half a 

 dozen Satyrus circe, but this latter was only just emerging. One day 

 in particular, July 8th, 1905, I was fortunate enough to secure three 

 A. ab. iole. A. clytie, or possibly the form here should be assigned to 

 ab. eos, Rossi, was decidedly commoner than A. ilia type. In two in- 

 stances I took interesting aberrations of A. iris besides those known 

 by names. One is on the upper ab. iole $ , but it is remarkable from 

 the fact that the broad white stripe is absent from the underside as 

 well as the upperside of the hindwings, so that the dark chocolate 

 fascia is undivided. This is not the rule with ab. iole, as might be 

 supposed. The other specimen is a typical A. iris $ , on the upper 

 side, but the white stripe is absent beneath, on left secondary, as in the 

 former example, but typical on the right side. In 1905 Limenitis 

 sibylla was everywhere, but no L. Camilla. I found that it was 

 regarded as a fact that L. Camilla did not occur in this district, and as 

 such I accepted it, but, in 1906, I took L. Camilla, three $ s and two 

 5 s, within a mile of Eclepens station. On June 22nd, in this same 

 year, Thecla pruni was common, and a week later Thecla acaciae, but 

 both, apparently, in restricted quarters. T. pruni is, I believe, new to 

 the list of this locality. On July 2nd, by an idle stroke at Argynnis 

 adippe, flying overhead, I obtained a fine specimen of ab. cleodoxa, 

 which Mr. Fison, perhaps the best authority in such matters, says is 

 the only specimen he has heard of in Switzerland ; though, of course, 

 the variety is common on the Italian side of the Simplon. Parnassius 

 apollo var. pseudonomion is remarkably fine in this locality. One 

 freshly emerged Coenonympha pamphilus presented an interesting case 

 of exceptionally rich coloration, being slightly suffused with a distinct 

 purplish tinge on the upperside, and, on the underside, the forewings 

 are a rich tawny-red, like Melitaea didyma. I have given the title 

 rubescens to this specimen in my cabinet. The following list of butter- 

 flies, taken and observed on odd days, in these two years, ranging from 

 June 16th to July 8th, is far from complete : — Parnassius apollo, 

 Aporia crataegi, Pieris brassicae, P. rapae, P. napi, Euchloe cardamines, 

 < 'alias hyale, Gonepteryx rhamni, Leptidia sinapis. Theclids, Strymon 

 w-album, S. ilia's, S. acaciae (all common), S. pruni, Callophrys rubi, 

 Chrysophanus phlaeas ab. suffusa, Rusticus argyrognomon, Cyaniris 



