BEES OF GREAT BRITAIN. 5 



Female. Length 4-4| lines. Black ; the pubescence on the 

 face griseous, that on the vertex, and on the thorax above, is 

 fulvous ; on the cheeks and thorax beneath it is nearly white, as 

 is also the pubescence on the legs ; the wings hyaline, the ner- 

 vures dark fuscous ; the abdomen is fuscous, subopake, and 

 very closely punctured, the base somewhat coarsely so ; all the 

 segments have entire fasciae of pale fulvous, or rather, ochra- 

 ceous pubescence ; beneath, the margins have a pale, or white 

 fringe. B.M. 



Male. Length 3^-4 lines. Head and thorax black, the face 

 densely clothed with pale fulvous pubescence, the disk of the 

 thorax ochraceous or pale fulvous ; the legs beneath and the 

 cheeks have a long dense white pubescence. Abdomen fuscous, 

 very closely and rather strongly punctured throughout ; all the 

 segments have a pale marginal fascia, which is longer and less 

 even than in the female ; between the fasciae is a long thin fus- 

 cous pubescence. B.M. 



The sculpture of the abdomen will easily distinguish this 

 species from C. succincta, with which alone it can be confounded ; 

 it is less black and shining than the latter. This bee, like the 

 former species, is generally distributed, but it has hitherto been 

 much less abundant, and is never found in large colonies. It is 

 taken at Coomb Wood, also in Kent and Hampshire, and has 

 been received from Sussex and Killarney ; it is found throughout 

 June, July and August. 



3. Collates marginata. 



C. nigra, thorace pallide fulvescente, abdomine segmentis margine 

 flavido-cinerascentibus. 



Apis marginata, Linn. MSS. in Linn&an Cabinet^ $ . 

 Collates marginata, Smith, Zool. iv. 1277. 3 $ $ . 

 Colletes succincta, Nyland. Ap. Boreal. 206. 1. 



Female. Length 4 lines. Black ; the clypeus deeply punctured, 

 the face having a pale fulvous pubescence, most thinly scat- 

 tered on the clypeus ; the thorax above has a thin fulvo-ochra- 

 ceous pubescence, that on the sides and beneath is much paler ; 

 the legs fusco-ferruginous, and having a thin pale pubescence. 

 Abdomen slightly shining, delicately punctured, the punctures 

 most strong on the basal segment, which has at the base a short 

 pale fulvous pubescence on each side ; all the apical margins of 

 the segments have a fascia of short pubescence of the same 

 colour. B.M. 



