BEES OF GREAT BRITAIN. 195 



uncommonly in the neighbourhood of Bristol by Mr.Walcott, who 

 has industriously collected the bees of that neighbourhood, and 

 has met with many rarities which he has presented to the British 

 Museum. 



2. Ceratina albilabris. 



C. nigra, clypeo et labro macula alba ornatis. Mas, clypeo et 

 labro totis albis. 



Hylaeus albilabris, Fair. Ent. Syst. ii. 305. 10. 

 Prosopis albilabris, Fabr. Syst. Piez. p. 293. 2. 

 Ceratina albilabris, Latr. Gen. Crust, et Ins. i. t. 14. f. 11. 



Jurine, Hym. p. 234. 



Spin. Ins. Lig. fasc. i. 151. 1. 



St. Farg. Hym. ii. 506. 2. t. 1 9. f. 1 ? , 2 $ . 



Smith, Zool. vii. Append. 57. 



Female. Length 2| lines. Black, shining and punctured ; the 

 clypeus and the labrum more or less white, the spots varying 

 in different individuals ; the tubercles and a minute spot at the 

 base of the tibiae white ; the wings subhyaline and iridescent ; 

 the abdomen clavate, the margins of the segments piceous ; 

 the abdomen is sometimes dark brown. B.M. 



The male only differs in having the clypeus and labrum entirely 

 white ; the abdomen incurved and truncate at the apex. 



This species is included amongst the British bees with some 

 hesitation. A specimen of the female is placed in the collection 

 of the British Museum, having a ticket attached, bearing the 

 number 236 ; on reference to Dr. Leach's MS. Catalogue, the 

 following entry is found : " June 4th, 236, taken in Tothill 

 Lane," Devonshire : the entry does not indicate whether the 

 number refers to an hymenopterous insect or not. Future in- 

 vestigation will probably remove all doubts of its being indi- 

 genous. 



Subfamily 4. SCOPULIPEDES, Latr. 

 Genus 13. EUCERA. 



Apis, pt., Linn. Faun. Suec. p. 419. no. 1684 (1761). 

 Eucera, Scop. Ann. Hist. Nat. iv. 8 (1769). 



Head transverse, the ocelli placed in a slight curve on the 

 vertex ; antennae filiform, the first joint of the flagellum twice 



K2 



