DOROS. 297 



Peristoma oblong, straitened in front, directed upwards. Eyes bare 

 or hairy. Labrum curved, notched at the tip. Lingua acute, as long 

 as the labrum. Maxillse as long as the palpi. Palpi hardly one-fourth 

 of the length of the labrum. Labium rather long, semicylindrical. 

 Antennae 5 -jointed, porrect, nutant, jointly shorter than the breadth of 

 the head, separated at the base ; first and second joints small ; third 

 round or oblong ; fourth very small, seated on the base of the third ; 

 fifth setiform, pubescent. Thorax oval, convex, hairy ; sides variegated 

 with yellow ; scutellum semicircular. Wings lanceolate, finely pubes- 

 cent, incumbent and parallel in repose; discal and subapical areolets 

 nearly equidistant from and parallel to the posterior margin ; subapical 

 areolet entire ; axillary lobe distinct ; subcostal and radial veins ending 

 separately in the margin ; transverse prcebracldal vein placed before the 

 middle of the discal areolet. Alulae small. Halteres uncovered. Ab- 

 domen depressed, with only five (or six) segments apparent. Legs slender. 

 Male. Front distinctly convex. Eyes connected. Fern. Front slightly 

 convex. Eyes remote. 



1. conopseus, Fb. s. i. ii. 429. 38 (1781); Gm. ; LI.; Fin.; 

 Mg. ; Mq. ; Ztt. conopsoides, Mg. kl. coarctatus, Pz. ! fn. xlv. 22. 

 Niger flavo-vittatus, antennis piceis, scutello fulvo, alis sublimpidis ad 

 costam fuscis, abdomine flavo-fasciato basi coarctato cylindrico, pedibus 

 luteis, femoribus basi nigris. Long. 7 ; alar. 14 lin. 



Black. Head with a yellow stripe on each side of the crown and of 

 the front. Antennae pitchy, black at the base. Thorax with a yellow 

 stripe on each side ; scutellum tawny. Wings almost colourless, brown 

 along the fore border. Halteres tawny. Abdomen coarctate and cylin- 

 drical at the base, with three yellow bands ; the third ridged in the 

 middle, prominent in front ; a very oblique short yellow stripe on each 

 side near the base. Legs luteous ; femora black towards the base ; a 

 brown, sometimes indistinct band on each tibia. 



Bare. (E.) 



2. citrofasciatus, Dg. i. vi. 118. S.festivus, Shr. ; Fb.; Esi. ; 

 LI. ; Fin. ; Mg. ; Mq. ; Ztt. vespiformis, Gf. ent. ii. 479. arcuatus, 

 Dnv. ; Hrs. x.v. 17. Niger, thoracis lateribus scutelloque flavis, alis 

 subcinereis, abdomine flavo-fasciato, pedibus luteis. Long. 5-5f ; 

 alar. 10-11 lin. 



Black. Head yellow. Antennae luteous. Thorax with a yellow 

 stripe on each side ; scutellum yellow, brownish at the base ; pectus 

 with a narrow transverse yellow spot on each side. Wings pale grey, 

 tawny towards the base, brown along the fore border. Halteres brown, 

 yellow or tawny towards the tips. Abdomen with four yellow inter- 

 rupted bands ; hind border of the fourth and fifth segments yellow ; 

 under side with four entire yellow bands, its margin mostly yellow. 

 Legs luteous ; coxce black. Fern. Head with a black stripe in front. 



Not very common. (E. I.) 



VOL. I. 2 Q 



