124 APID^E. 



parasitic ; I have found it flj'ing about a bauk in which was a colony 

 of Colletes fodiens. 



14. Nomada roberjeotiana. 



A T . atra, scutello, pcdibus antennisque ferrugiueis ; abdomine ferru- 

 gineo, apice albo, segmentis secundo tertioque macula laterali 

 alba. 



Nomada roberjeotiana, Pavz. Faun. Germ. 72. 18 J, 19 5 • 



Fabr. Si/st. Piez. 391. 



Schcif. Germ. Zeits. i. 283. 



Smith, Zool. ii. 603. 



Nyland. Notis. ur Sails k. pro Faun, et Flo. Fenn. i. 178. 



Schenck, Nass. Bien. 189. 



Thorns. Opusc.Ent. 92; Hym. Scand. ii. 205. 

 Nomada neglecta, Schiiff. lib. cit. 283 <$ . 



Female. Length 3 lines. — Head and thorax black, the anterior 

 margin of the clypeus, the labrum, and mandibles ferruginous. 

 Thorax — the collar, tubercles, tegula?, scutellum, and postscutel- 

 luni ferruginous ; the wings subhyaline, their apical margins 

 clouded, the nervures dark ferruginous, becoming bright red near 

 the base of the wings; the legs ferruginous, the coxae and tro- 

 chanters, except their extreme apex, and the femora beneath black. 

 Abdomen ferruginous, the base black ; the third and following 

 segments rufo-piceous, the second having at its basal margin late- 

 rally a rufo-piceous spot ; the basal margin of the third segment is 

 ferruginous in the middle ; the second segment has on each side a 

 transverse cream-coloured oval macula, the third a narrower and 

 more elongate one ; the fifth has a square spot of the same colour ; 

 beneath, immaculate. B.M. 



Male. Length 3 lines. — Head and thorax black, the anterior mar- 

 gin of the clypeus, the labrum, mandibles, and scape in front 

 yellow, the flagellum ferruginous. Thorax — the collar, tubercles, 

 and scutellum yellow ; wings and legs as in the female. Abdo- 

 men ferruginous, with the extreme base black ; the second segment 

 has on each side an ovate white macula; the following segments 

 are rufo-piceous ; and the third segment has laterally an oblong 

 white spot, the fourth a narrow interrupted fascia, and the fifth is 

 almost entirely white. B.M. 



The male desciibed is a highly coloured example; the spotting of 

 the abdomen varies greatly ; and the scutellum is sometimes more 

 or less ferruginous, and, in small specimens, occasionally black. 

 The species is very local and rare ; it was first discovered near 

 Mackwater, Hants, where a few specimens were taken ; it has sub- 

 sequently been found more plentifully near Carlisle. It frequents 

 the ragwort (Stncciojacolcea), and is found in July and August. 



