206 Mr. E. Saunders' Synopsis of 



rather darker hairs above. Antennae long, reaching to the scu- 

 tellum. Thorax clothed with long brownish grey hairs ; wings 

 slightly clouded. Abdomen more or less seneous, closely punctured, 

 densely clothed with long orange-coloured hairs ; 7th segment 

 narrowly truncate at the apex ; beneath with the 2nd segment very 

 long, punctured, rounded at the apex ; 3rd segment visible only at 

 the sides, its ajiical margin widely emarginate ; 4th segment with 

 its apical margin rounded and slightly reflexed ; 5th segment just 

 visible at the apex, shaped like the 4th ; 6th entirely hidden, rather 

 pointed at the apex ; 7th corneous only at the sides, the centre 

 entirely membranous ; 8th narrowly pointed (for genitalia see 

 PI. VIII., fig. 9). Legs clothed with brownish grey hairs. 



5 . Larger than the <? . Head clothed with black hairs. An- 

 tennae reaching to about the tegulae ; on each side of the clypeus is 

 a thick horn, slightly bifid at the apex, the inner tooth produced 

 and slightly bent towards the centre ; mandibles deeply grooved 

 and rugosely punctured. Thorax clothed with greyish brown 

 hairs, its surface more or less greenish and closely and finely punc- 

 tured. Abdomen aeneous, punctured, clothed with dense orange- 

 coloured hairs ; beneath with the scopa almost of the same colour ; 

 femora clothed with greyish hairs, tibiae and tarsi with orange. 

 Length, 10 — 15 mm. 



Hab. Very common ; appears in May. 



2. Osmia pilicor'nis, Smith. (PI. XL, fig. 4). 



Smith, ZooL, iv., 1567 ; Cat. Brit. Hym., 2nd ed., 

 p. 158 =:fuciformis, Smith (nee Gerst.). 



(^ clothed with pale hairs, its antennae long, with fine projecting 

 hairs beneath ; $ with the face clothed with black hairs ; meta- 

 thoracic area dull ; 1st and 2nd abdominal segments clothed with 

 brown hairs, the rest with black. 



,y . Head and thorax black, closely punctured, clothed with 

 ochraceous grey hairs. Antennae reaching to beyond the meta- 

 tliorax ; each joint beneath with several fine silvery hairs ; wings 

 slightly dusky, nervures brown. Abdomen black, clothed with 

 greyish hairs, shining, rugosely punctured at the base of the seg- 

 ments, impunctate and glabrous at the apex, apex of each more or 

 less testaceous ; 6th segment sharply emarginate ; 7th very deeply 

 so ; beneath 2nd segment very long ; 3rd visible only at the sides ; 

 4th somewhat truncate at the apex, its centre clothed with hairs 

 with their apices hooked ; the rest hidden. Legs clothed with 

 grey hairs ; posterior tibiae slightly incrassate ; posterior metatarsi 

 widened and produced inwardly at the apex (for genitalia see 

 PI. XL, fig. 4). 



