16 MANDIBULATA — HYMENOPTERA. 
APID^. 
Plate XLIII. fig. 1. 
Nomada Kirbyella. 
No. Nigra, apicibiis antennarum, tibih, tarsisque rufis ; ahdomini 
segmento 2o, 3o-que macula laterali alhida, 4" — 6o fasciis ahbre- 
viatis transversis ochreis. (Long. Corp. 6} lin.) 
No. Kirbiella, Steph. Catal No. 5070. 
Head and clypeus, wholly black ; the latter with a dense silvery pubes- 
cence : maxillse yellow : antennae red, scape black, the basal joint with 
a short black streak behind : thorax black, tubercles and tegulse red : 
trochanters, coxse, and femora black, the extreme tip of the latter, tibiae, 
and tarsi red : abdomen tawny red, the basal segment half black, 2nd 
with a round cream-coloured spot on each side, 3rd with a smaller 
one, 3 following with short, transverse, ochreous bands ; beneath 
wholly red. 
Taken by myself, near London. 
Plate XLIII. fig. 2. 
Osmia xanthomeJana. 
Os. aterrima, villosa, thorace, abdominisque basi, lanuginoso fulves- 
centibus. (Long. Corp. 4^—6^ lin.) 
Ap. xanthoraelana, Kirby.— Steph. Catal. No. 5058. 
Black ; deeply punctured, and pubescent : female with the head clothed 
with black hair, the thorax above with reddish-brown, and beneath with 
black ; legs also clothed with black and tarsi beneath with dark brown : 
abdomen with the 2 basal segments clothed with reddish brown, the rest 
thinly clothed with black, inside the under surface densely so. Male 
with the face clothed with white hairs, inclining to ochreous towards the 
crown ; thorax above with fidvous and beneath with hoary, as well as 
the legs : abdomen above also clothed with fulvous, with the 6th seg- 
ment notched, the 7th incurved and bidentate. 
Taken at Birch and Darenth woods ; also near Liverpool and 
Bristol, and near Ryde in the Isle of Wight, in May and June. 
