ANDREXID.E. 299 



in that sex with a wide line of silvery pubescence down 

 each side ; abdomen bright feriuginous, its extreme base 

 black, second, third, and fourth segments with a yellow 

 spot on each side, fifth and sixth with an apical dorsal spot, 

 base of the fifth and sixth segments sometimes black in the 

 $ , seventh segment narrow, deeply emarginate at the apex, 

 beneath ferruginous, apices of the segments with silvery 

 Lairs at the sides ; the species is so rare that I have been 

 unable to dissect out the terminal segments of the $\ legs 

 ferruginous, femora neai-ly entirely black, the anterior pair 

 angularly dilated in the $ , black at the base and beneath, 

 and simple in the ? , tibias and tarsi ferruginous in the $ , 

 posterior metatarsi black above, posterior tibise in the ? 

 with a black mark inwardly, and posterior coxaa densely 

 clothed with silvery hairs. 



L. 11-12 mm. 



This very fine species is rare, and parasitic on Andrena 

 Uattorjiana, appearing in July. Deal ; Salcombe ; Sid- 

 mouth ; WooUacombe, Morthoe, North Devon; (Smith). 

 Ventnor ; {Jioihncij). Norwich; {BriJgman). Exeter; 

 [Parfitt). Penzance; (Marquand). 



N. ferruginata, Kirhy {germanica, S^nifh, var. atrata. 

 Smith). — Head and thorax black, closely and rugosely 

 punctured, rather densely clothed with greyish-brown hairs, 

 mesopleurag in both sexes, and face below the antennne in 

 the S, clothed with silvery hairs, mandibles and cheeks 

 between them and the eyes, flavous in the ^ , ferruginous 

 in the ? , their apices rather rounded and piceous, labrum 

 black with a central tooth, clypeus black, its extreme apex 

 and sides testaceous in the ? , antennas black above in the 

 cJ, with the scape black in both sexes, very wdde in the S , 

 the second joint hidden in that sex, and the third, fourth, 

 and fifth swollen, sixth to ninth with a small lateral tubercle, 

 apical joint nearly as long as the two preceding together, ? 

 with the flagellum simple ; thorax with the tubercles, tegulio 

 and two spots on the scutcllum in buth sexes, and prouotul 



