British Hymenoptera. 161 



c? . Head somewhat round, wider than the thorax, shinmg, 

 punctured, densely clothed with sooty black hairs ; clypeus very 

 deeply emarginate in front ; labrum depressed in the centre and 

 very highly polished, its sides hairy; antennae slightly thickened 

 towards the apex. Thorax shining, finely, remotely, and irregu- 

 larly punctured, sparingly clothed with erect sooty black hairs ; 

 metathorax with its basal area finely and longitudinally wrinkled 

 at the base. Abdomen subovate, shining, sparingly clothed with 

 short suberect hairs ; segments depressed at the apex, punctured at 

 the base, apical fringe sooty brown ; beneath with the 6th segment 

 narrowly emarginate in the centre, the 7tli scarcely visible, 8th 

 produced, narrow, with its apex widened (for genitalia see PL V., 

 figs. 2 — 2 b). Legs clothed with pale hairs ; posterior femora with a 

 large truncate spine beneath ; posterior tibiae curved, thickened at 

 the apex, with a tuft of long hairs above the middle, on their inner 

 side. 



2 • Very like the J" , but with the head smaller, scarcely wider 

 than the thorax. Metathorax with the basal area finely wrinkled 

 and depressed ; beyond it with the surface smooth, but not very 

 shining. Abdomen oval, convex, very finely punctured, anal 

 fimbria sooty brown, apical dorsal valve rugosely punctured, nar- 

 rowly raised down the middle ; beneath punctured, legs clothed 

 with sooty brown hairs, posterior tibiae with the scopae greyish 

 brown, although often covered with bright yellow pollen. Length, 

 7—8 mm. 



Hab. Wandsworth, Blackheath, Chobham, Bourne- 

 mouth, Hastings, Isle of Wight, S. Devon, Penzance, 

 &c. Burrows in the ground on sandy and gravelly com- 

 mons, &c. 



2. Panurgus ursinus, Gmel. (PI. V., fig. 1 — 1 h). 



Gmel., Linn. Syst. Nat., ed. xiii., p. 2790 = Banksi- 

 anus, Kirb., Smith, Cat. Brit. Hym., 2nd ed. p. 107. 

 - Larger than the preceding ; ^ with the coxae, femora, and tibias 

 simple ; $ with the scopae bright golden. 



(J . Black, clothed with black hairs. Head scarcely wider 

 than the thorax, covered with sooty black hairs. Thorax shin- 

 ing, finely and remotely punctured ; metathorax with its basal 

 area bounded by a wide, smooth, and shining line. Abdomen 

 clothed with black hairs ; segments deeply impressed and glabrous 

 at the apex and more or less piceous ; apical frmge sooty black ; 

 genitaha testaceous (see PI. V., figs. 1 — 16) ; beneath with the 6th 

 segment deeply emarginate ; 7th foveated at the base, narrowed 

 and sKghtly emarginate at the apex ; 8th narrow and rounded at 



