2 64 
FOBEIGN BEES. 
very slender, and consisting of four joints, which is 
likewise the case with the labial pair ; spines of the 
hinder legs pectinated on the inner side. 
To exemplify this genus we have represented a 
new and splendid species from the collection of the 
Rev. F. W. Hope, which, on account of its large 
size and vivid colours, Mr. Westwood has named C. 
nobilis. It is of an intense black, clothed with very 
short velvet-like plush ; the three terminal segments 
of the abdomen brick-red, and the wings black, with 
an exceedingly brilliant purple gloss ; the length is 
about thirteen lines ; expanse of the wings nearly 
two inches ; the second submarginal cell receives the 
first recurrent nerve, and the second recurrent nerve 
is confluent with the nerve which closes the third 
submarginal cell ; the hind legs are extremely hirsute, 
with two long and acute tibial calcaria, both denti- 
culated, but one more strongly than the other ; the 
upper lip is triangular ; the mandibles with four 
teeth, the two inferior ones strongest and obtuse ; 
the maxillary palpi short, very slender, and four- 
jointed. 
Locality doubtful ; but in all probability South 
America, 
CENTRIS GROSSA. 
Plate XX. Fig. 2. 
Apis Grossa, Drury. — Centris Grossa, Drury's Exot. Ins. 
(Westwood's ed.) i. PI. 45, fig. 3. 
Head bluish-black, with a mixture of green ; antennas 
black ; thorax of a dark golden green inclining to 
