232 Mr. E. Saunders' Sy)iopsis of 



segment with black haix's ; beneath entkely clothed with black 

 hairs, except the apical segments of the abdomen, which are 

 clothed with pale ochreous ; genital armature with the sagittse 

 cm-ved downwards, and slightly hamate at the apex, angnlated 

 beneath behind the middle ; squama large, produced inwards at 

 the apex of the stipes, and forming a flat somewhat triangular 

 process, sharply pointed at its apical angle ; the rest of the squama 

 somewhat quadrangular; lacinia projectmg slightly beyond the 

 squama, sinuate at the apes, and densely clothed with brown hairs 

 (see PI. XII., fig. 3). Legs clothed with black hairs. 



5 and 5 . Coloured hke the ^ , and easily distinguished from 

 any of the other species of this section by the dense black hairs of 

 the face and under side, and by the rather longer less pointed abdo- 

 men. Length, 15 — 20 mm. 



Hah. This beautiful species has at present only been 

 found in the extreme north, and is recorded from Shet- 

 land and the Hebrides. 



2. Bombus cognatus, Steph. (PI. XIL, figs. 4 — 4 a). 



Steph.,Brit. Ent., Suppl., vii., 17, pi. 43, f . 3 = renus- 

 tus, Smith, Cat. Brit. Hym., 2nd ed., p. 201 = senilis, 

 do., 1st ed. ^= variabilis, Schmied. 



Entirely clothed with tawny yellow hairs, varying to dark brown, 

 those on the thorax and 2nd segment of the abdomen brighter and 

 darker ; <? with the joints of the antennte only very shghtly 

 rounded on their anterior margins; genital armature with the 

 sagittse hamate at the apex ; legs of both sexes with pale hairs. 



^ . Head subelongate, clothed with pale ochreous hau's ; cheeks 

 shining, vaguely punctured, about as long as their apex is wide. 

 Antennae with the 3rd jomt of the flagellum almost equal to the 

 2nd, the remaining joints slightly curved on their anterior margins 

 and sinuate on thek posterior margins. Thorax clothed with 

 bright orange-yeUow haii-s, paler below the wings; wings shghtly 

 tinged with brown. Abdomen clothed with pale ochreous hairs ; 

 the 2nd, 3rd, and 4th segments with a wide band of orange- 

 colom-ed hairs at the base ; 7th segment clothed with black hairs ; 

 genital armature with the sagitta3 hamate at the apex ; the squama 

 with its inner margin reflexed, sinuate, produced at both base and 

 apex, especially at the base, where the process forms a carti- 

 laginous plate, perpendicular to the dorsal sm-face of the armature ; 

 in the sinus is a small sharp tooth or spine ; lacinia rather long 

 j)rojecting considerably beyond the squama, sharj^ly falcate (see 

 PI., XIL, figs. 4 — 4a). Legs clothed with pale hairs, mixed 

 with black on the tibiae and also on the anterior femora. 



