90 THE entomologist's record. 



Susa, however, is not particularly cheap. My collecting grounds were 

 three in number. (1) The rough hill-sides along which the railway runs 

 from Bussoleno to Oulx. (2) A charming little hill that lies directly 

 behind the town. To reach this I had to follow a footpath through a vine- 

 yard, and over some fields. This led into a charming wooded gorge, and 

 the whole district here was swarming with insects. I have no doubt this 

 is private ground, but I was never challenged, so assumed no objection 

 was made to my presence. (3) The road leading up to the Mont Cenis 

 Pass. I did not try this until my last day ; I have no doubt it is a 

 splendid district, although difficult to work. (4) One dull morning I 

 walked down the main road to Bussoleno, but, with the exception of 

 swarms of Plebems aet/on, a single Apatura iole, several Pieris dapluUce 

 and Leucophasia sinajtis, saw nothing of importance. I should say 

 July is a better month than August in this locality. 



HESPERIDES — Hesperiid^. — SpilotJn/nis alceae. — This species, 

 a rather small and brown form, was not at all uncommon, and pretty 

 generally distributed. Nisoniades tar/es. — A second brood was not un- 

 common locally. Syrichthus sao. — A few specimens, with very 

 small spots. S. alveiis. — Worn, and altogether passe. Pampldln 

 sjjlvanus and P. comma. — Both, rare, apparently over. 



PAPILIONIDES — Lyc^nid^. — ZcpJn/nis quercus. — The only 

 Theclid captured or seen. Several were flying about the chestnut 

 trees, where I noticed no oaks. ChnjsopJiamis jMams. — This species 

 varied much in tint. Some specimens were very bright, others inter- 

 mediate, whilst others were quite dark, ab. siijfma, the ordinary 

 southern form. Lampides hoetica. — For the first time I saw this 

 species in its native haunts in fair abundance. I saw a dozen, at 

 least, on two days, flying over the bushes of Colntea arborescens, which, 

 with its swollen pods, was quite a feature of the little gorge. Two or 

 three of the bushes still had a few late flowers. That the butterfly 

 was egg-laying I am satisfied, but I could find no eggs, although I 

 searched. In habit, the species is very Theclid-like, and flies 

 swiftly over the tops of the bushes, often returning, if disturbed, 

 to the same bush. Mrs. Nicholl tolls me that in Spain she found 

 great numbers everywhere during the whole of the two months she 

 was there, the district in which they were found extending from Bar- 

 celona to various places 5,000 feet above the sea. She further suspects 

 that there may be a succession of broods all the summer, at different 

 elevations, two, or even three in the hot plains, and only one in the 

 mountains. Cyaniris aryiolus. — One specimen only captured, evidently 

 just emerged. Everes aryiades. — Rare, only one or two specimens ob- 

 served. Plebi'his aeyon. — The commonest blue of the district. It was in 

 hundreds along the roadside between Susa and Bussoleno. The speci- 

 mens are large, and with no dark margin. The females are not washed 

 with blue. Cupido minma. — A few in the little gorge, evidently of 

 a second brood, occurred with Polyommatus Jiylas, P. melcayer and 

 P'reres aryiades. Polyommatus bellaryus. — A few freshly emerged 

 specimens only. P. con/don. — Abundant, and generally distributed 

 all round the town. P. hylas. — Local. Some of the specimens were 

 very fine, others exceedingly small. The latter I have labelled as 

 ab. minor. I have also specimens with a number of extra spots on 

 the underside, ab. addenda. This is a common form of aberration in 

 P. bellaryus (but not in this locality). P. icarus, — This species was 



