sYBPiius. 287 



Abdomen with five yellow bands ; first inten'upted ; second and third 

 half interrupted or notched on the hind border ; fourth and fifth en- 

 tire. Legs lutcous ; femora black towards the base ; hind tibiae with 

 piceous bands ; tarsi piceous towards the tips. 



Very rare. In Mr. Stephens's and Mr. Desvignes' collections. 

 (E. I.) 



2. pyrastri, L. s.n. ii. 987. 51 (1767) ; Fb. ; Shr. ; Gm. ; Rsi. ; 

 LI. ; Fin. ; Mg. ; Mq. ; Lw. ; Ztt. — rosa, Dg. — selenitica, Mg. ; Lw.; 

 Ztt. — unicoJor, Ct. ! b. e. 509. Nigro-cyaneus, scutello subfulvo, alis 

 limpidis, abdomine albo- vel flavo-trifasciato, pedibus flavis femoribus 

 basi nigris. Long. 5J-7 ; alar. 11-14 lin. 



Blackish-blue, clothed with j^ale hairs. Head whitish, with a black 

 stripe in front. Maxdlfe more than twice the length of the palpi. 

 Palpi cylindrical, obtuse, extremely short. Antenna) piceous, tawny at 

 the base. Thorax with an indistinct tawny stripe on each side ; scu- 

 tellum dull tawny, more or less tinged with blue. Wings colourless. 

 Alula) white. Halteres luteous. Abdomen with three interrupted 

 whitish or yellowish bands, which are sometimes, but rarely, wanting ; 

 hind borders of the fourth and fifth segments whitish. Legs yellow ; 

 femora l)lack towards the base ; hind femora black ; tarsi feiTuginous. 



Generally distributed. (E. S. I.) 



3. grossularise, Mg. zw. iii. 306. 4.8 (1822); Mq. ; Lw. ; Ztt. 

 — errat'ica, L. — ribesii, var. major, Fhi. Viridi-a3neus, antennh n'ujris, 

 ahclomine n'ujro fascm qnatuor rectis latis prima interrwpta rdiquis in- 

 tegris luteis, pedibus luteis, femoribus basi nigris. Long. 6 ; alar. 13 lin. 



Head yellow ; vertex black ; a triangular black spot about the ocelli. 

 Antenna; black. Thorax ajneous-grccn, clothed with tawny hah's, 

 slightly tawny along each side ; scutellum tawny. Wings colourless ; 

 stigma pale brown. Alula) yellowish-white. Halteres yellow. Abdo- 

 men almost linear, black, clothed with black hairs, adorned with fotir 

 broad luteous bands, wliich are clotJied with tawny hairs ; first band in- 

 terrupted, forming a triangular spot on each side ; the other three entire, 

 linear, and parallel. Legs luteous; femora black at the base; anterior 

 tarsi ferruginous, luteous at the base ; hind tarsi browm, ferruginous at 

 the base. 



Rare. In Mr. Saunders's collection. (E. S, I.) 



4. ribesii, L. s. n. ii. 987. 50 (1767); Dg. ; Fb. ; Shr.; Gm. ; 

 LI. ; Fin. ; Mg. ; Mq. ; Ztt. Viridi-a^neus, antennis piceis subtusfe^-- 

 rugineis, abdomine nigro fasciis quatuor rectis siibangnstis prima inter- 

 rupta secunda et tertia leviter emarginatis pedibusque luteis. Long. 

 4i-6 ; alar. 9-12 lin. 



Head yellow ; vertex seneous-green. Maxillae half the length of the 

 palpi. Palpi half the length of the labrum. Antennce piceous, ferru- 

 ginous beneath, tawny at the base ; fourth joint ferruginous. Thorax 

 a)neous-green, clothed with tawny hairs, sometimes with a tawny sti'ipe 



