^^ EEKS OF GREAT BRITAIN. 



of the ground, produces a loud humming noise; during the last 

 ten years, as in 1843, the same colony has continued equallv 

 numerous. Like the former species this insect frequents the 

 flowers of a species of Ilawkweed. 



white fi 



Andrena 



A. atra, palhdo-villosa ; thorace fulvo; tarsis omnibus rufis; 

 abdomine ovato, fasciis tribus interruptis albis. 



Andrena longipes, Smith, Zool v. 1740. 24 <? ? . 



Andrena bucephala, Steph. Illust, Maud. vii. Supp. p. 17. ^var. 

 t. 43. f. 6. 



¥em(de. Length 5-6 lines.— Black ; the face thinly clothed 

 with pale fulvous pubescence, below the insertion of the an- 

 tennae It IS somewhat griseous ; antennaj slender, more than 

 half the length of the thorax ; the flagellum piceous beneath, 

 ihorax: above, clothed with fulvous pubescence, paler on 

 the metathorax and sides ; the wings fulvo -hyaline, the nervures 

 and tegulse pale rufo-testaceons ; the legs have a thin fulvous 

 pubescence ; the floccus white, the scopa and the pubescence 

 on the tarsi of a golden-fulvous, very bright and ghtterino'; the 

 tarsi rufo-fulvous, the posterior tarsi usually of the same co- 

 lour, but sometimes fusco-ferruginous ; the legs more elongate 

 than usual. Abdomen ovate, shining and convex ; the apical 

 margins of the second, third and fourth segments, have a very 

 narrow white marginal fringe, the two first interrupted; the 

 apical fimbria fulvous. Bjyi. 



Male. Length \-^ lines.— The head varying in size, sometimes 



twice as large as the thorax, the mandibles forcipate ; the face 



has a thinly scattered pale fulvous pubescence ; the clvpeus 



shining and finely punctured; the antenna; as long as the thorax. 



Ihe thorax and wmgs as in the female ; the tarsi and extreme 



apex ot the tibia; fulvo-ferruginous ; the legs elongate as in the 



other sex. Abdomen lanceolate, much narrowed at the base, 



naked and shmmg, the margins of the segments obscurely 

 ruto-piceous. g jj. 



This very conspicuous and beautiful species is found in plentv 

 on a mound close to Ilighgate Archway, and occurs occasion- 

 ally on Hampstead Heath ; it has also been met with on the 

 border of Hawley-Flat, Hants : these are the only localities 



i 



