ANDRENID.£. 293 



in tlie (J more or less flavous ; these as well as tho 

 prothoracic collar rufotestaceous in the ? , tegulao testa- 

 ceous iu both sexes, mesonotum entirely black in the cj 

 except two small yellow spots more or less bordered with 

 fulvous on the scutellum, rufotestaceous stripes in the ? 

 very wide, leaving only narrow black lines between them, 

 scutellum entirely rufotestaceous, mesopleurse each with a 

 small yellow spot and clothed with long white hairs in the 

 ^ , with a large rufotestaceous spot in the ? , propodeum 

 in the ? with two small rufotestaceous spots at the base 

 inside the basal area, and two larger ones below, sides 

 clothed with shining silvery hairs; abdomen bright, rather 

 pale rufotestaceous, second to fifth segments in the <?, second 

 to fourth in the ? , each with a pale cream coloured spot on 

 each side, those of the second segment largest, fifth in the 

 ? and sixth in the (J with a square spot in the centre, 

 apical dorsal valve of S narrowly emarginatej beneath 

 rufotestaceous fifth segment in the (J densely hairy, 

 eighth segment with the apical process winged on each 

 aide almost to the apex and fringed with fine pale spines, 

 stipites with a large triangular apical process, fringed 

 with long hairs on its outer margin ; legs rufotestaceous, 

 extreme base of the femora more or less black, posterior 

 tibife armed round the apex externally with five long 

 subequal spines, pale in the ^J, black in the ? . 



L. 7-9 mm. 



Rare, occurs in August and is parasitic on Andrena 

 argentata. Woking; Chobham ; Bournemouth; Sandhurst; 

 Farnborough ; (Sin ith) . 



Variable in the extent of the paler colour, a larger form, 

 the b-spinosa Thorns., occurs on the Continent, nut so far 

 as I know it has not been met with in Britain. 



N. guttulata, Scheiick (mfilabris, Thonis.). — Of this very 

 distinct species I possess a single ? without locality, and I 

 only retain it in the list because, as it occurs in Sweden, I 

 think it is quite probable it will turn up again in this country. 



