British Hymenoptera. 209 



(7 . Head and thorax bronzy, or sometimes with bluish tints, 

 closely pmictm-ed, clothed with pale brownish hairs. Antennse 

 reaching about to the tegulae ; wuags slightly dusky ; metathorax 

 finely rugose at the base, with a smooth space below. Abdomen 

 brassy or blue, fringed at the sides and ends of the segments with 

 ochreoiis hairs, deeply and largely punctured ; 6th segment entire 

 or obsoletely emarginate ; 7th bidentate ; beneath with the 2nd 

 segment almost entire ; the 3rd largely emarginate, its emargination 

 fringed with long bans ; 4th and 5th entire (for genitalia see 

 PI. VIII., fig. 13). Legs clothed with pale brownish hairs ; calcaria 

 black. 



2 . Blue ; head and thorax dull, clothed with greyish hairs ; 

 vertex subquadrate, as wide as the thorax ; metathoracic area dull. 

 Abdomen shining, strongly punctured ; 2nd and following segments 

 with a very naiTOw apical fringe of whitish hairs ; beneath with 

 the scopa black. Legs clothed with short pale hairs ; calcaria 

 black. Length, 7 — 10 mm. 



Hah. Common, and generally distributed in May 

 and June. 



6. Osmiafulviventris, Panz. (PI. VIII., fig. 15). 



Panz., Faun. Germ., 56, 18; Smith, Cat. Brit. Hym., 

 2nd ed., p. 154. 



<y more or less bronzy, j nearly black ; thorax and head obscure 

 greenish ; ^ abdomen subelongate ; j scopa bright orange ; abdo- 

 men shining, without pubescent bands. 



^ . Head and thorax bronzy green, densely punctured, and 

 clothed with long pale brown hairs. Antennte reaching not quite 

 to the scuteUum ; wings rather dusky ; metathorax rugose at the 

 base, the triangular area shining towards the ajpex. Abdomen 

 bronzy, subelongate, shining, largely punctured, sparsely clothed 

 with long ochreous hairs, forming dense bands at the apex of each 

 segment ; 6th segment piceous and emarginate at the aj)ex ; 7th 

 bidentate ; beneath punctured, 2nd segment slightly emarginate, 

 3rd largely so, and the emargination fringed with long golden 

 hairs ; the others entire (for genitalia see PI. VIII., fig. 15). Legs 

 clothed with pale hairs ; calcaria dark piceous. 



$ . Head and thorax dull, greenish black, sparingly clothed 

 with ochreous-grey hairs, and closely and deeply punctured ; vertex 

 subquadrate ; clypeus emarginate at the apex ; wings smoky brown. 

 Abdomen shining, black, with a greenish tinge, largely punctured, 

 almost glabrous above on the 2nd and 3i'd segments ; extreme sides 

 of the segments fringed with orange-yellow hairs ; 6th segment 



