204 



Mr, E. Saunders' Synoipsis of 



I have described 



each case a single ? was captured 

 the (? from a continental specimen. 



(2) 1. 

 (1) 2, 



(12) 3. 



(5) 4. 



(i) 5. 



(7) 6. 



(G) 7. 



(11) 8. 



(10) 'J. 



(U) 10. 



(8) 11. 



(3) 12. 



Division II. 



Tibiffi pale in both sexes .. .. .. .. xunthopus. 



Tibiae dark in both sexes. 



Head and thorax without a greenish tinge. 



Pubescence of thorax ashy grey . . . . . . ^-iiotntm. 



Pubescence of thorax more or less brown. 



g ; abdomen beneath without long hairs ; abdo- 

 minal fasci;e of J more or less fulvous . . hcv'Kjatu^. 



Abdomen of $ clothed with long hairs beneath ; 

 abdominal tasciiB of o white. 



Tarsi of ^ entirely black, or white above only on 

 the basal joint ; abdominal bands in J entire, 

 or nearly so. 



Tarsi, of ^ with the basal joint pale ; basal seg- 

 ment of body in $ closely and evenly punc- 

 tured all over .. .. .. .. .. leiicozoidus 



Tarsi of ^ entirely black ; basal segment of body 

 in 5 shining and somewhat remotely punc- 

 tured, especially about the middle . . . . zunulus. 



Tarsi of ^ entirely yellowish ; abdominal seg- 

 ments of 5 with only a white spot on each 

 side . . . . . . . . . . . . 4:-iiotatus. 



Head and thorax more or less greenish . . . . praainus. 



4. Halictus xanthopus, Kirby. 



Kirby, Mon. Ap. Angl. ii., p. 79 ; Smith, Cat. Brit. 

 Hym., 2nd ed., p. 81. 



Black ; head and thorax covered with bright brown 

 hairs ; wings slightly brownish ; 2nd, 3rd, and 4th seg- 

 ments of the abdomen with a white basal band ; tibiae 

 testaceous in both sexes. 



(? . Head punctured ; face clothed with long pale 

 hairs. Apex of the clypeus with a pale transverse spot. 

 Antennae long, reaching to beyond the scutellum. Thorax 

 rather more largel}' punctured than the head ; meta- 

 thorax finely rugose. Abdomen wide, obovate, shining, 

 irregularly punctured on the basal segment, finely and 

 closely punctured on the rest ; basal segment clothed 

 with long hairs, the rest having, besides the basal white 

 bands, a few scattered golden hairs ; beneath clothed 

 with pale hairs ; 5th segment with the apical margin 

 emarginate inthecentre; (for genitalia see pi. viii.,fig. 13). 



