Insects. 2171 



Sp. 21. Halictus leucozonius, St. Fargean. 

 Melitta leucozonia, Kirby. Apis leucozonia, Schrank ? 



Female. — (Length 4 — \\ lines). Deep black ; the face has a thin, 

 scattered, pale fulvous pubescence ; the mandibles ferruginous at 

 their apex ; the tongue at the apex acuminate. Thorax rather 

 coarsely punctured ; the metathorax rugose, truncate posteriorly ; the 

 tegulae nigro-piceous ; the wings hyaline, slightly iridescent ; the 

 nervures ferruginous ; the tarsi and posterior tibiae have a fulvous pu- 

 bescence ; the apical joints of the tarsi ferruginous. Abdomen sub- 

 ovate, shining, entirely closely and finely punctured ; the second, 

 third and fourth segments have on their basal margins, laterally, a 

 patch of white pubescence, the third frequently obliterated ; the apical 

 incision pale fulvous; beneath coarsely punctate, and the margins 

 fringed thinly with pale yellow pubescence. 



Male. — (Length 3 — 3f lines). Black; the face clothed with short 

 white pubescence, slightly stained with ochraceous towards the ver- 

 tex ; the nose white at the apex, and the mandibles ferruginous at 

 their tips. Thorax shining, rather coarsely punctured ; the wings 

 clear hyaline, splendidly iridescent ; the basal joint of the interme- 

 diate and posterior tarsi white ; the apical joint ferruginous. Abdo- 

 men oblong-ovate, shining, entirely closely and not very finely punc- 

 tured ; the second and third segments have at their basal margins, 

 laterally, a slight patch of white pubescence, frequently obliterated. 



This species is very distinct from all the preceding. The male has 

 the wings quite colourless and splendidly iridescent. The species is 

 not uncommon in the neighbourhood of London, and is, I believe, 

 generally, but not very abundantly, distributed. I have captured it 

 in Yorkshire, Kent, Middlesex. Hants, Berks, &c. 



Sp. 22. Halictus zonulus, Smith. 



Female. — (Length 4j — 5 lines). Deep black ; a thin ochraceous 

 pubescence on the face. Thorax closely punctured ; the metathorax 

 truncate posteriorly ; the tegulae nigro-piceous ; wings subhyaline ; 

 nervures ferruginous ; the thorax and legs have a pale fulvous pu- 

 bescence, bright on the tarsi and posterior tibiae ; the claws ferrugi- 

 nous. Abdomen ovate, shining, regularly, finely and closely punc- 

 tured, more sparingly so on the basal segment ; the three intermediate 



