182 APID^l. 



Prosopis albilabris, Fair. Syst. Piez. 293. 



Ceratina albilabris, Latr. Hist. Nat. des Ins. xiv. 50. 



Spin. Ins. Ligur. i. 151. 



Germ. Faun. Ins. Eur. v. bo. 17. 



Dufour, Ann. Soc. Ent. Fr. ix. (1840) 16. 



St.-Farg. Hym. ii. 506, pi. 19. fig. 1 <J, 2 $ . 



Lucas, Expl. Sc. Alger, iii. 223. 



Smith, Zool. Append, vii. 57 ; Bees Great Brit. 195. 



Giraud, Ann. Soc. Ent. Fr. vi. (1866) 454. 



Female. Length 3 lines.— Black, shining and punctured, finely and 



closely so on the abdomen ; a longitudinal white spot on the cly- 



peus ; the lips of the mandibles rufo-piceous ; the wings fusco- 



hyaline ; the tubercles white, and usually a minute white spot at 



the base of the tibia? ; the apical joints of the tarsi rufo-testaceous ; 



the abdomen clavate, the apical margins of the segments narrowly 



rufo-piceous. 



Male. —Usually rather smaller than the female, and differing in 



having the clypeus entirely and a spot on the labrum white. B.M. 



The spots described as white are usually yellowish in cabinet 



specimens ; but white in fresh ones. I have considerable doubt of 



this being a British species. There is a single specimen, a male, 



in the Museum collection ; it has a number attached ; and in Dr. 



Leach's MS. Catalogue" the entry to the corresponding number is, 



" Taken in Tothill Lane, Devonshire." . If the entry really alludes 



to the Ceratina, no doubt future captures will prove the species to 



be indigenous. It is generally distributed on the Continent. 



Subfam. IV. SCOPULIPEDES, Latr. 



Genus 13. EUCERA. 



Apis (pt.), Linn. Syst. Nat. i. 953 (1766). 

 Eucera, Scop. Ann. Hist. Nat. iv. 8 (1809). 



Head transverse ; ocelli in a curve on the vertex ; antenna; fili- 

 form ; the labial palpi 4-jointed, the first joint elongate, linear, and 

 twice the length of the second ; the third and fourth joints minute, 

 clavate, and articulated near the apex of the second joint ; maxillary 

 palpi 6-jointed, the basal joint robust, much thicker than the fol- 

 lowing joints, which are subclavate, each gradually decreasing in 

 length as compared with the preceding joint ; tongue one third longer 

 than the palpi ; the paraglossw setiform, elongate, nearly as long as 

 the tongue, and acuminate at the apex. The anterior wings with 

 two submarginal cells, the second receiving both the recurrent 

 nervures ; the calcaria simple, the claws of the tarsi bifid. 



The males have the antennae elongate, nearly as long as the body, 

 filiform, and with four or five of the apical joints arcuate ; the entire 

 flagellum minutely and beautifully reticulated. 



