1882. 233 



PHYTOPHAGA. 



ClytJira sp. ?. — Algarve. C. sp. ?. — Alinodovar. 



Cryptoceplialus sp. ?. — Cintra. 



Chrysomela sp. ?. — Monchique. C. americana,Jj. — Monchique. 



C. Banhsi, F. — Lisbon. 



Timarcha sp. ? . — Lisbon. 



Entomoscelis adonidis, ¥. — Cintra. 

 Malacosoma lusitanicum, L. — Almodovar. 



Haltica sp. ? . — Cea. 



Splicer oderma cardui, Greb. — Cintra. 

 Cassida eyuestris, F. 



COCCINELLID.E. 



Coccinella 7 '-punctata, L. — Algarve. C. variabilis, 111. C. sp. ?. 



— Algarve. 



D. SHARP. 



Note on Drepana sicula. — A rather singular instance of variation (or even of 

 degeneration from the type) arising, probably, from extreme isolation and consequent 

 in-breeding, seems to be afforded by Drepana sicula in its one British locality — 

 Leigh Woods, near Bristol. 



In comparing specimens from this locality with typical continental specimens 

 it may at once be seen that there is a great difference in the markings of the hind- 

 wings. Between the two delicate indented brownish lines that cross the hind- wings, 

 and in contact with the posterior of them, is, in continental examples, a large blotch 

 of a delicate warm fawn-colour, within which are two or three small, pale yellow 

 spots, and just behind the posterior line is a pair of distinct, round, black dots, the 

 lower one being the larger. But in the Bristol specimens, as far as I have seen, the 

 fawn-coloured blotch is extremely faint, the contained yellow spots hardly visible, and 

 the twin black dots in most cases totally obsolete. I have traced them in one 

 specimen, but much smaller and closer together than in continental specimens, and 

 Mr. Grrigg, who has seen most of the recent specimens, assures me that these two 

 black dots are almost invariably absent. 



This is the more remarkable because in the same specimens the/ore-wings are 

 often as strongly marked — with all markings complete — and as usually coloured as 

 those from abroad, and they are scarcely inferior in size. 



Much more serious results from— apparently — isolation and breeding-in, appear 

 to be the extreme sluggishness of the perfect insects, which are scarcely ever seen to 

 fly, the great difficulty of obtaining fertile eggs, and the subsequent delicacy of the 

 larvae, all of which seem to point to the gradual extinction of the species in this 

 locality. — Chas. Gr. Baeeett, Pembroke : 16th February, 1882. 



