Insects. 743 



thin pubescence of the same colour. The abdomen is incurved, ob- 

 long-ovate, the first segment has a thin fulvous pubescence, and all 

 the margins have a thin fascia of fulvous hair, the sixth is emarginate 

 and the seventh bidentate. 



The male of the present species is not described by Mr. Kirby ; it 

 somewhat resembles the same sex of O. caerulescens, but the abdo- 

 men is of a different form, being oblong-ovate, whilst in the latter 

 species it is broadest towards the apex, and considerably narrowed 

 at the base. O. caerulescens is also a much smaller insect. 



The present is a somewhat local species, but sufficiently abundant 

 in some places ; namely, in the neighbourhood of Bristol, and at 

 Sandhurst, Berkshire : but I used to find it most numerous in Batter- 

 sea-fields some years ago, when there were great numbers of sheds 

 and palings in the market- gardens. It appears in July and August. 



Sp. 4. OSMIA PARIETINA, Curtis. 



Female. — Dull aeneous green. Head and thorax thickly and mi- 

 nutely punctured. The former having a hoary, and the latter a bright 

 ferruginous pubescence. Abdomen very glossy, obscurely punctured, 

 slightly pubescent, ferruginous at the base, under side clothed with 

 black pubescence. Wings with a fuscous fimbria. The legs have a 

 little hoary pubescence, that of the tarsi fuscous. 



This is an insect which I do not possess, never having been fortu- 

 nate enough to meet with the species. The male is not known ; whe- 

 ther that which T shall hereafter describe may be it or not, I have no 

 evidence whereby to determine. My insect 1 captured in Hampshire. 

 Mr. Curtis captured this species some years ago, in June, flying about 

 walls near Ambleside. Captain Blomer also records his having taken 

 it near Bridgend, Glamorganshire, (Ent. Mag. i. 317). 



Sp. 5. OSMTA OERULESCENS. 



Female. — Apis caerulescens, Linn., Kirby. Andrena ccerulescens, 



Fab., Panzer. Abeille magonne, De Geer. 



Male. — Apis amea, Linn. Andrena <B?iea, Fab., Panzer. 



Female. — Length 3 J — 4 J lines. Deep blue, strongly and closely 

 punctured. Head large, as wide as the thorax : a few white hairs on 

 the face, close to the eyes, below the base of the antennae ; a similar 

 thin pubescence scattered on the vertex : the cheeks are also clothed 

 with similar pubescence. The thorax has a white pubescence inclin- 

 ing to hoary on the disk. The abdomen has a very thin, scattered, 

 white pubescence, most dense at the lateral margins of the basal seg- 



