2172 Insects. 



segments hare a little white pubescence at their basal margins late- 

 rally ; beneath rather coarsely punctured. 



Male. — (Length 3j — 4 lines). Black ; the face clothed with short 

 white pubescence, stained with yellow towards the vertex ; the nose 

 generally black, but sometimes with a small yellow spot. Thorax 

 clothed thinly with ochraceous pubescence, closely and rather deeply 

 punctured ; wings subhyaline ; the legs have a little pale ochraceous 

 pubescence ; the claws ferruginous. Abdomen oblong-ovate, shining, 

 finely punctured ; a little white pubescence at the basal margins, late- 

 rally, of the three intermediate segments. 



This species very closely resembles the leucozonia, but is very dis- 

 tinct. The female is much more closely punctured on the thorax, 

 which is not so glossy ; the metathorax is not so coarsely rugose ; the 

 abdomen is more finely punctured, and more sparingly so on the 

 basal segment, and the insect is generally rather larger than leucozo- 

 nia : the male may at once be known by its having entirely black 

 legs. The species does not appear to be so abundant as leucozonia. 

 I took my specimens in the neighbourhood of Woolwich : the male 

 I received from Scotland. Mr. Walcott has taken it near Bristol. 



Sp. 23. Halictus maculatus, Smith. 



Female. — (Length — ? lines). Black ; the head subquadrate ; the 

 face thinly clothed with pale ochraceous pubescence; the clypeus 

 coarsely punctured, very slightly produced ; the antennae nigro-piceous 

 at their apex beneath. Thorax closely and not very finely punctured ; 

 the metathorax rotundate ; the tegulse piceous ; the wings slightly 

 fuscous ; the nervures ferruginous ; the tarsi and posterior tibiae have 

 a very pale fulvous pubescence ; the apical joints of the tarsi ferrugi- 

 nous. Abdomen oblong- ovate, shining, and very delicately punc- 

 tured ; on the apical margin of the segments, laterally, is a short 

 white fascia. 



This very pretty species I captured in Hampshire : when taken I 

 mistook it for Osmia leucomelana, which it much resembles ; its sub- 

 quadrate head and the eight lateral spots give it a very strong resem- 

 blance to that insect. I possess but a single specimen, and do not 

 know the male. 1 suspect it is a rare species, as I have since repeatedly 

 searched the locality for it, but in vain. 



