BEES IN BRITISH MUSEUM. 345 



1. Abdomen with a distinct blueish lustre ; first r. n. entering second s. m. about 



or slightly before its middle; b. n. falling; a long way short of t. m. 



nit id us Sm. 



Abdomen without metallic color; b. n. meeting t. m., or approaching it very 



closely on the outer side 2. 



2. Females; basal joint of hind tarsi much broadened 3. 



Males 4. 



3. Antennae reddish, third joint clear red. contrasting; anterior tibiae and tarsi 



dark red ; first r. n. joining second s. m. a little beyond its middle. 



crassipes Sm. (T.). 



Antennas, including third joint, dark ; first r. n. entering second s. m. about 



its middle fervidus Sm. (T.). 



4. Hind margins of abd. segments white, the white edged anteriorly with golden 



brown ; tibiae and tarsi lively red ; anterior margin of clypeus and 

 labrum pellucid cream color; first r. n. entering second s. m. consid- 

 erably beyond its middle marginatus Sm. (T.;. 



Table B. — Species of Lamprocolletes (Type chalybeatus). 



Abdomen chestnut-red, with a large round black spot on each side of second 

 segment; tibiae and tarsi red ; clypeus shining, with few large punc- 

 tures; second s. m. small, much narrowed above, receiving first r. n. 

 very slightly beyond its middle; second r. n. entering third s. m. 

 some distance from its end ; b. n. meeting t. m. 



Paracolletes biinaculatus (Sm.) (T.). 



Abdomen red, very hairy at base, and with thin white hair-bands; no spots on 

 sides of second segment; legs entirely red, front femora with very 

 long hair beneath ; antennae red ; flagellum blackish above; face cov- 

 ered with long light fulvous hair; second s. m. broad, receiving first 

 r. n. slightly beyond its middle; third s. m. receiving second r. n. 

 some distance from its end; basal nervure meeting t. m. on outer 

 side- . • Paracolletes frederici n. n. = Lamprocolletes 

 ruhellus Sm. % (T.); not Dasycolletes rubellusSm. 



Abdomen not red, or only reddish from the pubescence .._... .1. 



1. Abdomen shining green 2. 



Abdomen dark bluish, greenish or purple 4. 



Abdomen dark, hairy or nude, but not metallic 9. 



2. Size rather large; abdomen with strong crimson tints; hind tibiae and middle 



and hind tarsi red; flagellum ferruginous beneath ; b. n. just falling 

 short of t. m. ; first r. n. entering second s. m. just before its middle ; 

 second entering extreme end of third s. m. 



Paracolletes cupreus (Sm.) (T.). 

 Much smaller 3 



3. Female; hind tibiae and middle and hind tarsi red; clypeus and supraclypeal 



area black, rest of face and front green ; marginal cell elongated and 

 obliquely truncate; first r. n. joining second s. m. about its middle; 

 second joining third s. m. at its extreme tip ; b. n. meeting t. m. 



P. auiabilis (Sm.) (T.). 



TRANS. AM. ENT. SOC. XXXI. (44) SEPTEMBER, 1905. 



