BEES IN BRITISH MUSEUM. 347 



(P. obscurus might also be looked for in Section 12, in whicb case it will 

 run to 14, and will be separated from P. chalybeatus by tbe dark red- 

 brown stigma.) 

 Distance from first r..n. to second t. c. little more than distance from second 

 r. n. to third t. c. ; legs dark red P. ciuereus (Sin.) (T.). 



17. Abdomen with abundant fulvous hair 18. 



Abdomen without such hair 20. 



18. Larger; legs red; plumose scopa on hind tibia blackish. 



P. fulvus (Sm.)J(T.). 

 Smaller 19. 



19. Enclosure of metathorax large, indistinctly transversely sericeo-striate ; fla- 



gellum red ; face covered with fulvous hair. 



P. ruficoruis (Sm.) (T.). 

 Enclosure of metathorax smaller, shining, with a beaded margin ; flagellum 



not red P. waterhousei n. sp. 



(P. waterhousei bears the label "frontalis Smith, type," and another label 

 with tbe remark "clearly not frontalis." The description of frontalis in 

 Cat. Hym. B. M., under Leioproctus, does not at all accord with the 

 present insect, and as the latter is distinct and easily recognized, I name 

 it after Mr. C. O. Waterhouse in recognition of his valuable editorial 

 labors on Smith's posthumously published work.) 



20. Abdomen sericeous, hind margins of segments pale golden ; first r. n. joining 



second s. m. about its middle; b. n. falling just short of t. in. ; scape 



red ; tibise and tarsi red P. veimstiis (Sm.) (T.). 



Abdomen hairy, the margins of the segments not obviously pallid ; first r. n. 

 joining second s. m. far before its middle; b. n. meeting t. m.; scape 

 not red P. aurifrons (Sm.) (T.). 



Three species were not examined : P. bipectinatus (Smith, 1856), 

 P. cristatus (Smith, 1853), and P. irroratus (Smith, 1853). 



Table C. — Species of Dasycolletes (Type metallicus). 



Abdomen red ; first r. n. joining second t. c. ; second r. n. meeting third t. c. ; 

 hind spur pectinate with numerous fine long teeth. 



Paracolletes rubellus (Smith). 

 Abdomen not red 1. 



1. Only two submarginal cells (the second t. c. wanting); stigma large; clypeus 



covered with silvery hair; supraclypeal area nude, shining brassy. 



P. vitrifrons (Sm.) % . 

 Three submarginal cells; first r. n. joining second s. m. not beyond its mid- 

 dle 2. 



2. About 7 mm. long, with a dark purple abdomen ; second s. m. strongly con- 



tracted above (New Zealand) P. purpureas (Sm.) % . 



At least 9 mm. long 3. 



3. First r. n. joining second s. m. distinctly before its middle 4. 



First r. n. joining second s. m. near or at the middle; no such patches on 



mesothorax as occur in humerosus 5. 



TRANS. AM. ENT. SOC. XXXI. SEPTEMBER, 1905. 



