Doros. 359 



cept the black coxæ and trochanters; anterior femora with more or 

 fewer black hairs, but hind femora and tibiæ all or almost all yellow- 

 haired. Wings more brown and hence the stigma and the spot below 

 it less marked; cubital vein a little less curved. 



Female. Likewise similar to the female of ornatum, and differing 

 from the male in the same way as this, only the abdominal bands 

 are not narrower than in the male. 



Length 10—11,5 mm. 



X. citrofasciatum is like the preceding somewhat rare in Denmark; 

 Amager, Damhusmosen, Ordrup Mose, Ermelund, Ruderhegn; on Lol- 

 land in Kældskov and Høvænge Skov west of Nysted ; in Jutland at 

 Horsens. My dates are ^^/s — ^k\ it is thus in contrast to ornatum 

 a spring species; it occurs otherwise in the same way. The pupa 

 was found under a stone on Amager on ^^U and it developed in the 

 same month (Worm Hansen). 



Geographical distribution : — Europe down into Italy ; towards 

 the north to southern Sweden, and in Finland. 



22. Doros Meig. 



Species of rather large size and somewhat long and narrow shape, 

 somewhat similar to an Eumenes; the colour is black with yellow side 

 stripes on thorax and small markings on pleura, and with narrow 

 bands on abdomen; the body is slightly hairy. The genus is nearest 

 allied to Xanthogramma and also somewhat similar to it, but at once 

 distinguished by the narrow abdomen; otherwise it agrees with it in 

 most respects. Head similar; eyes bare. Antennæ with the arista 

 very slightly pubescent. Epistoma with the central knob smaller, it 

 is yellow with a black middle stripe leaving the knob yellow, or more 

 black with only the side margins yellow. Thorax as in Xanthogramma; 

 scutellum brownish yellow, no fringe below the margin. Abdomen 

 somewhat long and narrow, constricted at the base and thus clavate; 

 it is semicylindrical as the dorsum is arched, the venter flat; the 

 second segment is somewhat long and narrow, the others decreasing 

 in length but increasing in breadth. In the male there are five not 

 transformed segments, the fifth not specially small. Genitalia small, 

 of usual shape. In the female there are likewise five normal abdominal 

 segments, but three small apical segments are generally seen. Legs 

 with the femora a little thickened towards the base; hind tibiæ with 

 the incurvation on the posterior side before the apex rather strong, 

 and the anterior tibiæ with indications of the same structure; hind 

 tibiæ moreover a little dilated about the middle; anterior tibiæ sulcated 



