24 [January, 



3 (2) Mandibles very long and curved, but with a definite tooth on the 



inner edge before the apex. 



(3rd abdominal segment viewed in profile cK>thed above with 

 excessively short bristly black hairs, instead of the softer 

 longer ones of spinigera, the whole head clothed with black 

 hairs, sometimes a little cinereous on the vertex, many 



black hairs on the thorax) eximia, Sm 



( = teiitonica Alfk. =^ rosae 1st gen.). 



4 (1) Face beneath the antennae generally mostly or altogether clothed 



witli }>rown, cinereous, or ochreous hairs ; if with black, there is 

 no long genal spine. 



5 (8) Abdomen with distinct red or yellowish bands or markings, either 



above or below, or on both siirfaces. 



6 (7) Hind tibiae with pale apices, not coneolorous throughout, and the 



thorax more hair^' al)0ve anglica Alfk. 



( =- spinigera 2nd gen.). 



7 (G) Hind tibiae coneolorous and the thorax less hairy rosae Panz. 



8 (5) Abdomen at most with the thin apical margins of the abdominal 



segments appearing more or less obscurely testaceoixs. 



9 (10) Lower half of the face (i.e., beneath the antennae) clothed at least 



for the most pai-t with brown haii-s, fading to cinereous or pale 

 ochreous trirmnerana K. 



10 (9) Lower half of face wlioUj' or for the most part clothed with l>lack 

 hairs trbnmennia var. scotica n. 



Females. 



1 (4) Abdomen above or beneath, or on both surfaces, with some red or 



yellow markings. In the most highly coloured varieties the 2nd 

 and 3rd segments above may be wholly, or for the most part, red ; 

 in the least coloru-ed, only the apices of one or two segments, 

 either above or beneath, or the pleura of the 1st segment, or some- 

 times two spots at tlie base of the 2nd ventral may be red or 

 yellow. Scopa beneath yellow. 



2 (3) 2nd and 3rd abdominal segments, viewed in profile, bare, or almost 



so, on its dorsal surface medially eximia and rosae. 



3 (2) 2nd and 3rd abdominal segments, viewed in profile, well clothed 



with erect hairs medially spinigera and anglica. 



4 (1) Abdomen lilack, not notably marked with red or yellow ; scopa 



generally white or silvery beneath. 



5 (6) Abdomen with pale hairs on the third and following segments ; face 



generally clothed largely with brownish or ochraceous hairs. 



. . .trimmerana K. 



6 (5) Abdomen on the 3rd and 4th segment clothed with erect black hairs, 



as viewed in profile ; face for the most part black-haired. 



trimmerana v. scotica n. 



