SYRPHUS. 291 



Halteres yellow. Abdomen black, with three half-interrupted hoary 

 bands-, first broad; second and third narrow. Legs tawny ; femora 

 black at the base ; hind femora black with taicny tips ; hind tibiae rarely 

 encircled with black. Fern. Crown with a black stripe. 

 Not rare. (E. S. I.) 



15. laternarius, Mr. pr. 2040 (lllfy.glaucius, Fb. ; Mg. 

 mutatus, Ztt. Niger, abdomine fasciis una lata fulva duabusque canis 

 angustis. Long. 4^5 ; alar. 10-11 lin. 



Black. Head hoary, yellow in front ; disc of the crown aeneous. 

 Wings pale grey ; veins black ; stigma piceous. Halteres yellow. 

 Abdomen with three interrupted bands ; first tawny, very broad ; second 

 and third hoary, narrow. Legs black. 



Not common. (S. I.) 



16. albostriatus, Fin. syrph. 42. 10 (1816); Mg. ; Mq. ; Lw. ; 

 Ztt. ^Eneus, antennis fulvis apice fuscis, thorace cano-bivittato, abdo- 

 mine fasciis quatuor interruptisflavis, pedibus flavis, femoribus basi nigris. 

 Long. 4-4i ; alar. 8-9 lin. 



Body clothed with tawny hairs. Head yellow. Antennae tawny, 

 piceous towards the tips. Thorax aeneous, with two hoary stripes. 

 Scutellum aeneous, tawny. Wings colourless, with a blackish-brown 

 stigma. Alulae white. Halteres luteous. Abdomen with four inter- 

 rupted yellow bands ; the fourth forming only a small spot on each side ; 

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

 femora black towards the base-, hind tibiae indistinctly banded with 

 brown ; hind tarsi brown above towards the tips. 



Not rare. (E. S. I.) 



17. venustus, Mg. zw. iii. 299. 38 (1822) ; Mq. ; Ztt.solitaria, 

 Ztt. Yiridi-aeneus, antennis piceis subtus ferrugineis, abdomine nigro 

 fasciis quatuor interruptis pedibusque luteis, femoribus basi nigris. Long. 



4-5 ; alar. 8-10 lin. 



Head luteous, with a short black stripe above the peristoma ; vertex 

 seneous-green. Antennas piceous, ferruginous beneath; fourth joint 

 ferruginous. Thorax aeneous-green. Scutellum dull tawny. Wings 

 colourless ; stigma lurid. Alulae yellowish-white. Halteres luteous. 

 Abdomen black, fusiform, adorned with four transverse luteous spots on 

 each side ; hind borders of the fourth and fifth segments luteous ; under 

 side luteous with transverse black spots. Legs luteous ; femora black 

 at the base ; tarsi ferruginous ; hind tarsi piceous. 



Generally distributed. (E.) 



18. lunulatus, Mg.zw.iii. 299. 39 (1822); Mq.; Ztt. JSneus, 

 epistomate flaw nigro-vittato, antennis fulvis supra fuscis, scutello aeneo- 

 fusco, abdomine nigro-aeneo lunulis bis tribus, pedibusque flavis, femoribus 



basi nigris. Long. 4-5 ; alar. 9-12 lin. 



jEneous. Vertex aeneous-black ; epistoma yellow, with a black sea- 



