118 



apid^;. 



mandibles jellow ; tbe flagellum ferruginous, tbree or four of the 

 basal segments black above. Thorax — the tubercles, tegulae, and 

 two minute dots on the scutellurn yellow ; the latter sometimes obso- 

 lete ; the anterior legs yellow, the intermediate and posterior pairs 

 ferruginous, their coxae and femora black beneath, the knees and 

 the intermediate tibiae and tarsi yellow, the latter stained with 

 ferruginous. Abdomen as in the other sex, the yellow bands being 

 brighter and rather broader. The wings are nearly hyaline, their 

 apical margins faintly clouded, the nervures pale testaceous. B.M. 



This beautiful species is very local, but widely spread, having 

 been received from Scotland ; it is not rare to the north of London 

 about Hampstead and Highgate ; it has been observed about the 

 burrows of Andrena labialis, and also those of A. rufa. It is pro- 

 bably one of those bees that are parasitic on various species. 



8. Nomada armata. 



N, atra ; scutello punctis duobus, linea transversa subtus, antennis 

 pedibusque ferrugineis ; abdomine rufo, segmentis intermediis 

 maculis navis. 



Nomada armata, Schaff. Germ. Zeits. i. 279 rf . 



Smith, Zool. vii. Append. 41 ; Sees Great Brit. 130 $ § . 



Nyland. Notis. ur Sallsk. pro Faun, et Flo. Fenn. ii. 232. 



Thorns. Opusc. Ent. 94 ; Hym. Scand. ii. 199. 

 Nomada kirbyella, Steph. Illus. Brit. Fnt. Stipp. pi. xliii. fig. 1 tf . 

 Nomada cincticornis, Nyland. lib. cit. 182 $ . 



Female. Length 5J lines. — Head and thorax black ; the anterior 

 margin of the clypeus, the mandibles and antennae, and sometimes 

 a minute dot above the eyes ferruginous ; the scape fuscous ; the 

 flagellum has the eighth and three following joints fuscous, the 

 apical joint ferruginous ; a minute acute tooth in the centre of the 

 labrum. Thorax— -a narrow line on the collar, the tubercles, the 

 tegulae, two spots on the scutellurn, and the postscutellum ferru- 

 ginous ; a patch beneath the wings and the margin of the meta- 

 . thorax fringed with silvery white pubescence; the legs ferruginous, 

 the coxae and trochanters, except their extreme apex, and all the 

 femora towards their base beneath, black ; the basal joint of the 

 posterior tarsi fuscous on the outside. Abdomen ferruginous, the 

 base black ; the second segment has on each side an ovate yellow 

 macula, and the third and fourth segments a short transverse yellow 

 line on each side at their basal margins. B.M. 



Male. Length 5-| lines. — Head and thorax black, the flagellum 

 ferruginous, its two apical joints having a black spot above ; the 

 mandibles yellow, their tips ferruginous ; the labrum armed with 

 a sharp tooth in the middle ; the face covered with silvery white 

 pubescence. Thorax — the pubescence on the disk yellowish, that 

 on the sides and beneath hoary ; the tubercles, tegulae, tibiae, and 

 tarsi ferruginous ; the femora at their apex above ferruginous ; 



