British Hymenoptera. 207 



2 • Face clothed rather sparingly with black bail's, vertex with 

 brown. Thorax with bright brown hairs ; metathoracic area dull. 

 Abdomen shining, rather more finely punctured than in the S' 5 

 1st and 2nd segments clothed with brown hairs like the thorax, the 

 remainder with black ; beneath with the scopa black. Legs clothed 

 with black hairs ; posterior metatarsi short, about three times as 

 long as wide. Length, 9 — 10 mm. 



Hah. Local. Bristol, Leigh Woods and Durdham 

 Downs ; Birchwood, Kent ; Colchester. 



3. Osmia xanthomelana, KiYh. (PL VIIL, fig. 8). 



Kirb., Mon. Ap. Angl., ii., p. 246; Smith, Cat. Brit. 

 Hym., 2nd ed., p. 155 =fuciformis, Gerst. (nee Sm,). 



Thorax and abdomen entirely clothed with fulvous hairs in the g- . 

 Antennse reaching to about the tegulae ; apical segment of abdomen 

 deeply notched ; $ with the face densely clothed with black hairs ; 

 thorax and first two abdominal segments with fulvous ; the other 

 segments, as well as the scopa and legs, with black. 



(^ . Head and thorax black, closely punctured ; face clothed 

 with pale hairs ; mandibles with a tooth on the inner margin. 

 Antennae reaching to about the tegulae. Thorax clothed with 

 bright fulvous hairs ; wings clouded, especially over the radial cell; 

 nervures piceous, paler at the base ; metathoracic area shining. 

 Abdomen finely punctured, densely clothed with fulvous hairs ; 

 the extreme apex of each segment impunctate, glabrous and shin- 

 ing ; 7th segment deeply emarginate at the apex ; beneath clothed 

 with black hairs, 2nd segment angulated at the apex ; the 3rd 

 emarginate at the apex, the emargination fringed with golden 

 hairs ; 4th rounded at the apex, clothed with hairs recurved at the 

 apex ; 5th only visible at the extreme sides (for genitalia see 

 PI. VIII., fig. 8). Legs clothed with pale fulvous-grey hairs; 

 posterior metatarsi inwardly produced into a slight tubercle. 



5 . Eather stouter than the ^ , the head larger and more 

 quadrate, the antennae short, the face densely clothed with black 

 hairs, the thorax with dark fulvous, paler below the wings ; wings 

 and metathorax as in the ^ . Abdomen clothed with fulvous 

 hairs on the first two segments, slightly paler at the apex of each, 

 and with black hairs on the other segments ; beneath entirely 

 clothed with black hairs, the hairs of the scopa in certain lights 

 with a fulvous tinge. Legs clothed with black hairs, those of the 

 tarsi fulvous beneath ; posterior naetatarsi rather longer than in 

 the preceding species. Length, 12 mm. 



TRANS. ENT. SOC. LOND. 1884. — PART II. (jULY.) P 



