376 HYMENOPTERA ACULEATA. 



segments, those of the extreme base of the first sometimes 

 black, with black hairs on the third and often also on the 

 fourth, and with red on the rest ; the coloration of the ? 

 and 5 is somewhat similar, but the yellow of the hairs is 

 less bright, the basal segment is generally clothed with 

 black hairs, the second with yellow, and the third and 

 fourth with black, and the apex with red. The black 

 colour, however, is very apt to spread, and the yellow 

 sometimes is entirely absent, and the red hairs of the 

 terminal segments confined to the extreme apex ; armature 

 of the c? as in Jonellus ; legs clothed with black hairs 

 more or less reddish towards their apices ; metatarsi of the 

 (J as in Jonellus. 

 L. 10-18 mm. 



Common and generally distributed, it is very partial to 

 the flowers of the bramble. 



B. Cullumanus, Eirby (soroensis, pars, Saund. Synop- 

 sis). — This species, which has been considei-ed as a form of 

 soroensis by Schmiedeknecht, Hoffer, and other Continental 

 authors, has been recognized as distinct by Smith, Thomson, 

 and Handlirsch ; and the last author in his " Hummel- 

 studien" (Ann. K. K. Naturh. Hofmuseums, vi., 1891) 

 gives an excellent figure of the male armature. In my 

 synopsis I treated it as a variety of soroensis, being misled 

 by the similarity in its colouring to the var. proteus of that 

 species. Mr. Waterhouse, however, was good enough to 

 set the matter at rest by extracting the armature of Kirby's 

 type, which at once revealed it as a distinct species. 



(J in form somewhat like lapidarius, face clothed with 

 pale hairs, vertex with black, cheeks short, as wide as long, 

 antennae with the fifth joint much longer than the fourth, 

 three-fourths as long as the third and fourth together, 

 basal joints of the flagellum very slightly arcuate ; thorax 

 clothed with pale hairs with a broad interalar black band ; 

 abdomen with the first and second segments clothed with 

 pale short greyish-yellow hairs, the third with black, the 

 remainder with red, beneath clothed with pale hairs ; arma- 



