208 Mr. B. Saunders' Synojjsis of 



white hairs at the base, more or less interrupted in the 

 middle ; 5th and 6th segments clothed with scattered 

 hairs, the 5th with a slight indication of a basal band ; 

 beneath nearly flat and almost glabrous, 4th and 5th 

 segments slightly emarginate posteriorly, 5tli depressed, 

 with a slight dorsal line ; legs, with the tarsi and extreme 

 base of posterior tibiae, pale, three apical joints of pos- 

 terior tarsi fuscous ; (for genitalia see pi. ix., fig 18). 



? , Head and thorax covered with bright chestnut- 

 brown hairs ; head closely punctured. Thorax remotely 

 punctured on the disk ; metathorax shining, looked at 

 from in front sharply truncate posteriorly, its basal area 

 longitudinally rugose, bounded behind by a curved line. 

 Abdomen deep black, very shining ; 1st segment clothed 

 with brown hairs at the base, remotely punctured ; 2nd, 

 3rd, and 4th segments rather more closely punctured, 

 each with an ochreous basal band of pubescence, and 

 clothed beyond it with scattered brown hairs ; 5th seg- 

 ment with golden brown hairs on each side of the rima ; 

 beneath and legs densely clothed with brown hairs. 

 Length 8 — 9 mm. 



Hah. Not common. Eeigate ; Guildford ; Shipley, 

 near Horsham; Greenwich; Charlton; Ventnor; Bristol; 

 Scotland. 



? quite distinct from any other of its group by the 

 bright brown head and thorax, and the ochreous bands 

 of the abdomen. The ^ bj^ its elongate shining abdo- 

 men, nearly glabrous beneath, and its black clypeus. 



9. Halictus sexnotatus, Kii'by. 



Kirby, Mon. Ap. Angl. ii., p. 82, pi. xv., figs. 7, 8 ; 

 Smith, Cat. Brit. Hym., 2nd ed., p. 84. 



Black ; head and thorax covered with ashy grey hairs. 

 Abdomen shining ; 2nd, 3rd, and 4th segments with a 

 basal spot, on each side, of snow-white pubescence ; legs 

 of the c? entirely black. Wings infuscate. 



<? . Head and thorax finely and closely punctured ; 

 face about as long as wide across the eyes. Clypeus 

 rather narrow, white at the apex. Antennae reaching to 

 the middle of the metathorax ; mesotliorax densely and 

 very finely punctured, the punctures rather farther apart 

 on the disk ; post-scutellum densely villose ; metathorax 

 rounded posteriorly, finely rugose on its basal area, 



