British Hymenoptera. 203 



district and "Blakenham Parviim " as localities for it. 

 It is a common continental species. 



3. Halictus maculatus, Smith. 



Smith, Zool. vi., p. 2172, $ ; Cat. Brit. Hym., 2nd 

 ed., p. 86. 



Black ; <? dull, ? shining ; first four segments each 

 with a white pilose spot on each side at the apex. Vertex 

 of the head incrassate in both sexes. Wings smoky 

 brown. 



(? rugosely punctured ; head and thorax clothed with 

 ochreous-brown hairs ; face densely covered with whitish 

 hairs. Clypeus with a white spot at the apex ; mandibles 

 testaceous, except at the base, not dilated. Antennae 

 reaching to about the scutellum, brown beneath ; vertex 

 flat and produced considerably behind the eyes. Thorax 

 punctured like the head ; dorsal area of the metathorax 

 finely rugose ; the rest of the metathorax punctured. 

 Abdomen closely punctured, the punctures largest on 

 the basal segment, and becoming finer on the ajjical 

 segments. Each segment depressed at the base and 

 apex, and bearing a short narrow line of white silvery 

 hairs on each side along the apical margin of the 1st, 

 2nd, 3rd, and 4th ; beneath flat, 4th and 5th segments 

 not emarginate at the apex ; surface punctured and 

 almost naked; (for genitalia see pi. viii., fig. 12). Legs 

 covered with short silvery hairs ; front tibiae anteriorly, 

 and intermediate and posterior tibiae at the base and 

 apex, and all the tarsi, yellow. 



? . Head closely punctured, wider than the thorax ; 

 vertex considerably produced behind the eyes ; face 

 sparingly clothed with golden hairs. Thorax more 

 remotely punctured than the head, shining, with scat- 

 tered golden hairs ; post-scutellum very finely and closely 

 punctured ; metathorax finely rugose. Abdomen shin- 

 ing, finely punctured, narrower and more parallel-sided 

 than usual for a ? of this genus ; each of the first four 

 segments with a lateral spot of silvery hairs at the apex ; 

 5th segment with pale golden hairs on each side of the 

 centre ; beneath and legs densely clothed with golden 

 hairs. Length 9 mm. 



Hah. Weybridge ; Hastings, August, 1879 ; Black- 

 water. These are the only localities recorded, and in 



