LEriDOrTERA, ETC., IN THE OUTER HEBRIDES 253 



strongly banded), Coremia imimtata, Eupithecia natiota, Crafiilms 

 n/l/)ic//its, CEcophora pscudospretei/a, Siinre.this oxycanthella. Larvae 

 of Nyssia zonaria were preserved and subsequently identified, 

 Mr C. G. Lamb notices that " the larvae were present in myriads 

 on the sand-hills near Barvas. They were often blown into hollows 

 in such numbers as to hide the ground. They were in various 

 stages of growth. The vegetation in these places was extremely 

 mixed, and included conspicuously Fetasites, wild carrot, and a 

 species of rue. It is impossible to state what plants were especially 

 attacked. Lepidoptera in general were scarce in the district, and 

 very few species of Geometr^x were seen." The record of A' zonaria 

 is interesting. The species has been taken in Skye and Tiree {fide 

 South), and is a typical sand-dune species.^ 



HvMENOPTERA cHALASTROCASTRA (Sawflies). — Thesc havc been 

 determined by the Rev. F. I). Morice, who states that they are all 

 quite common forms. The material is as follows : — Tenthredo afra, 

 Linn., var. scopolii, Lep., 5 c? > 9 ? (including one pair in coiti/), 

 all 4th to 5th July; AUantiis araiatus, Forst., 3 (J , 5 9) 3rd to 

 8th July; Pachyncntahis diiellatus^ Lep., 2 (? , 2 9 J Dolcrus ceneiis 

 Hartig, i $. 



HvMENOPTERA ACULEATA. — Thcsc are represented in the col- 

 lection only by three species of Humble Bees, determined by 

 Ur R. C. L. Perkins: — (i.) Bonidi/s litcoriim, Linn., frequently 

 regarded as a race of B. terrestris, but I follow Sladen in treating 

 it as a distinct species. Li his book {The Humble Bee, p. 16 1), 

 Sladen states that hicoruvi is common over almost the entire 

 kingdom, but especially abundant in the North, though not 

 recorded from Shetland, (ii.) Boiiduis jonellus, Kirby, var. nivalis. 

 Smith (not to be confounded with Boinbus nivalis, Dahlb.) : this 

 form was described from Shetland, and Perkins considers the 2 $ 

 from Lewis as not absolutely identical with the original Shetland 

 form, but as extremely close. Sladen (p. 168) states that a male of 

 this form was taken in Harris by Dale; and that specimens from 

 Orkney resemble, not var. 7iivalis, but the ordinary English form 

 o{ jonellus. (iii.) Bomhus muscoruju, Linn., var. smitJiianus,V^\\\\.Q.: 

 this form differs from ordinary muscorinn in various ways, but most 

 strikingly in that the hairs of the under-side and legs in the queen 

 and worker (and to a less extent in the male) are black instead 



* This species was found in great abundance on the western shore of South 

 Uist in June 1910 by P. II. Grimshaw — vide Aim. Scol. Nat. Hist., 1910, p. 215. 

 A. F. Griffith has also recorded it as " abundant on the ' machars ' (sandy pastures) 

 along the western coasts of the Outer Hebrides " {^Ent. Mo. Mag., 1900, p. 41). 



