30 BEES OF GREAT BRITAIN. 



the nervures ferruginous; the pubescence on the tarsi and 

 posterior tibiae pale fulvous ; the apical joints of the tarsi ferru- 

 ginous. Abdomen oblong-ovate, shining, and very delicately 

 punctured ; on the apical margins of the segments laterally a 

 short line of snow-white pubescence, the first frequently ob- 

 literated. 



This very distinct and pretty little bee has only been twice 

 captured ; it occurred on Hawley Green, Hants : at first sight, it 

 has a very close resemblance to Osmia leucomelana : the male has 

 not been taken in England. St. Fargeau's insect is probably 

 not identical with this, as he does not mention the remarkable 

 subquadrate head ; the male has the flagellum fulvous beneath, 

 the margin of the clypeous yellow, and all the tarsi and tibia? 

 testaceous, the latter fuscous at their base ; the fifth and sixth 

 segments of the abdomen having similar spots to the female- 



9. Halictus cylindricus. 



H. niger, rufescenti-pubescens ; abdominis segmentis marginibus 

 fulvis, intermediis basi utrinque pallidis. Mas, abdominis 

 segmentis anticis runs, macula media punctisque lateralibus 

 nigris. 



Hylaeus cylindricus, Fabr. Ent. Syst. ii. 302. 1 <J ; Syst. Piez. 



319. 10. 



Hylaeus abdominalis, Panz. Faun. Germ. 53. 18 < . 

 Melitta abdominalis, Kirby, Mon. Ap. Angl. ii. 73. 30 $ . 

 Melitta fulvooincta, Kirby, Mon. Ap. Angl. ii. 68. 28 , & var. <? a, 



ftr- 



Melitta malachura, Kirby, Mon. Ap. Angl. ii. 67. 26 ^ (var.). 

 Andrena vulpina, Fabr. Syst. Piez. p. 326. 19 . 



Panz. Faun. Germ. 97. 18. 



Halictus terebrator, Walcken. Mem. Halict. p. 72 <? $ . 

 Halictus vulpinus, St. Farg. Hym. ii. 276. 15. 



Lucas, Explor. Sc. Alger. iii. 185. 96. 

 Halictus fulvocinctus, Nyland. Ap. Boreal, p. 199. 4. 

 Halictus abdominalis, Smith, Zool. vi. 2106. 15 $ ? . 



Female. Length 44-g- lines. Black ; head and thorax closely 

 punctured, the face thinly clothed with short fulvous pubescence"; 

 the disk of the thorax is similarly clothed, more densely at the 

 sides ; the metathorax rugose, posteriorly truncate ; the enclosed 

 portion at its base has a sharp ridge behind ; the wings sub- 

 hyaline, their apical margins slightly clouded, the nervures fer- 

 ruginous ; the tegulae piceous ; the pubescence on the legs rufo- 



