126 BEES OF GREAT BRITAIN. 



Apis rufiventris, Kirby, Mon. Ap. Angl. ii. 187. 9 ? . 

 Nomada rufiventris, Smith, Zool. ii. 590. 2 $ $ 

 Nomada Marshainella, Nyland. Ap. Boreal, p. 176. 3. 



Female. Length 4-5i lines. Head and thorax black, the 

 clypeus and a spot above it, the orbits of the eyes, the labrum, 

 mandibles and antennae, ferruginous, the scape black above. 

 Thorax : the tubercles and two spots on the scutellum yellow ; 

 a stripe down the breast in front and the legs ferruginous ; the 

 coxae more or less fuscous, and the posterior femora and tibiae 

 having a black stain beneath ; the wings subhyaline, their 

 apical margins having a fuscous cloud, the tegulae reddish- 

 yellow. Abdomen ferruginous, the base black ; the apical 

 margins of the first and three following segments rufo-fuscous ; 

 the apical margins bright yellow, the fifth entirely yellow ; be- 

 neath ferruginous, the apical margins of the segments black. 



B.M. 



Male. Length 4-5 lines. Head and thorax black ; the scape of 

 the antennae in front, the face below their insertion, the orbits 

 of the eyes, interrupted at their vertex, yellow ; the labrum 

 and mandibles yellow ; the flagellum ferruginous, three or four 

 of the basal segments black above. Thorax : the tubercles, 

 tegulae, two minute dots on the scutellum, yellow ; the anterior 

 legs yellow, the intermediate and posterior pairs ferruginous, 

 their coxae and femora black beneath, the knees and the inter- 

 mediate tibiae and tarsi yellow, the latter stained with fer- 

 ruginous. 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 testa- 

 ceous. B.M. 



This beautiful species is very local, but appears to be widely 

 distributed ; it is not uncommon at Hampstead and has been 

 received from Scotland ; it is parasitic upon Andrena labialis. 



8. Nomada varia. 



N. atra ; scutello sulphureo ; abdomine flavo, basi ferrugineo,. 

 fasciis quatuor nigris. Mas, scutello, tibiis extus, abdomi- 

 nisque fasciis posticis flavis, segmento basali rufo. 



Nomada fucata, Panz. Faun. Germ. 55. 19 $ . 

 Fabr. Syst. Piez. p. 390. 3. 

 Spin. Ins. Lig. fasc. i. p. 151. 1. 

 Schaff. Germ. Zeits. i. 284. 22. 

 Smith, Zool. ii. 593. 5 <? ? . 



