BEES OF GREAT BRITAIN. 



2. Prosopis annularis. 



P. atra, fronte maculata ; tibiis omnibus flavo annulatis. 



Sphex annulata, Panz. Faun. Germ. fasc. 53. 1 $ . 

 Melitta annularis, Kirby, Mon. Ap. Angl. ii, 38. 4. 

 Hylaeus annularis, Smith, Trans. Ent. Soc. iv. 30. 2 ; Zool. vi. 



2202. 3. 

 Prosopis armillatus, Nyland. Ap. Boreal. 189. 3. 



Female. Lengtlv2-3 lines. Black ; head orbiculate, the clypeus 

 truncate anteriorly, a yellow or sometimes a fulvous macula below 

 the insertion of the antennae, not touching the eyes ; the apex 

 of the nagellum fulvous beneath ; the collar has an interrupted 

 line, the tubercles and a spot on the tegulae in front, yellow ; all 

 the tibiae yellow at the base ; the wings hyaline, beautifully 

 iridescent, their nervures fuscous ; the abdomen very smooth 

 and shining, the margins of the segments sometimes narrowly 

 rufo-piceous. B.M. 



Male. Length 2 lines. Black, the face below the insertion of 

 the antennae, the scape in front and a line on the mandibles 

 white ; the nagellum, except the two basal joints, fulvous be- 

 neath ; the tegula3 and extreme base of the wings fulvo-testa- 

 ceous ; wings subhyaline, the nervures ferruginous, the anterior 

 tibiae fulvous, or sometimes yellow in front, the tarsi rufo- 

 fuscous ; the posterior tibiae have a broad ring at their base, the 

 intermediate tibiae more or less yellowish-white at their base ; 

 the basal joint of the posterior tarsi white ; the abdomen rather 

 more elongate than in the female. B.M. 



Although this species closely resembles the P. communis, still 

 it is very distinct ; the form of the head alone would serve to 

 distinguish it ; and it should be observed that the markings are 

 not yellow, but really cream-coloured. This species occurs near 

 London., and has been taken in Hampshire ; Mr. S. Stevens met 

 with it at Arundel, Sussex. 



3. Prosopis dilatata. 



P. atra, tibiis flavis, nigro annulatis ; antennis scapo patelli- 

 formi. 



Melitta dilatata, Kir by, Mon. Ap. Angl. ii. 39. 5 $ . 

 Hylaeus dilatatus, Latr. Hist. Nat. xiii. 361. 2. 



Curtis, Brit. Ent. viii. t. 273. 



Smith, Trans. Ent. Soc. iv. 31. 4. t. 3. f. 1 ; Zool vi. 2204. 4. 

 Prosopis dilatata, Nyland. Ap. Boreal. 188. 2. 



B 5 



