BEES OF GREAT BRITAIN. 109 



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Genus 7. CILISSA. 



Andrena, pt., Fal^r, Ent. Syst. ii. 307 (1793). 



Melitta, pt., Kirhy. Mon, Ap. Angl i. 140. t. 3**c. f. 8, 9 (1802). 



Cilissa, Leach, Edin. Encycl. 9 (1812). 



Kirbya, St. Farg, Hym. ii. 145 (1841) 



Anthophora, pt., Fahr. Syst. Piez. 374 (1804). 



Head transverse, the ocelli placed in a curve on the vertex ; 

 the flagellum of the antennse fihform, the apical joint obUquely 

 truncate ; the inentuni obtuse at the base, and acute in the 

 middle at the apex; the labial palpi four-jointed, not quite so 

 long as the labium ; the labium lanceolate, acute at the apex ; 

 the paraglossse minute. The maxillary palpi six -jointed. The 

 wings as in the genus Andrena. 



The economv of this genus of bees is precisely similar to that 

 of the genus Andrena ; we are only acquainted with three species 

 which inhabit Europe, two of which occur in England ; a third 

 species occurs in Sweden, and a fourth in the United States. 

 These insects are of rare occurrence ; the C. leporina occurs but 

 rarely in the neighbourhood of London ; it burrows in sandy 

 banks ; in the month of July 1852 a small colony w^as discovered 

 on Hampstead Heath. 



1. Cilissa liseniorrhoidaiis. 



r 



C. atra, pallide subpubescens, thoracis limbo fulvescenti ; abdo- 

 mine ovato, basi retuso, ano fulvo-aureo. 



Andrena hsemorrhoidalis, Fahr. Ent. Syst. ii. 313. 25 ^ ; Syst. Piez. 

 p. 327. 24. 



Panz. Faun. Ge^^m. 65. 20. 



Zett. Ins. Lapp. p. 459. 1. 

 Melitta chrysura, Kirby, Mon. Ap. Angl. ii. 172. 110 J ^ . 



St, Farg. LTym. ii. 214. 2. 

 Cilissa h9emorrhoida]is, Leachy Edin. Encycl. ix. 155. 



Smith, Zool. vi. 2207. 1. 



Nyland. Revis. Ap. Boreal, p 268. 3. 

 Kirbya chrysura, St. Farg. Uym. ii. 146. 2. 



Nyland. Ap. Boreal, p. 246. 1. 



Female. Length 5^-6 lines.— Black ; the face clothed with 

 short pale fulvous pubescence; the flagellum, except the ex- 

 treme base, fulvo-piceous beneath ; the margin of the vertex 

 fringed with black pubescence. Thorax : the middle of the 



