298 SYRPHID^E. 



3. ornatus, Mg. zw. iii. 298. 37 (1822); Mq. ; Ztt. ; GmtL 

 festivus var., Fin. Niger, thoracis lateribus scutelloque flavis, alls 

 subcinereis, abdomine flavo-fasciato, pedibus flavis, femoribus posticis 

 apice nigris, tibiis posticis fusco-cinctis. Long. 3^-5 ; alar. 7-10 lin. 



Black. Head yellow or luteous in front. Antennae ferruginous. 

 Thorax with, a yellow stripe on each side ; scutellum yellow towards 

 the hind border ; pectus with a narrow transverse yellow spot on each 

 side. Wings slightly tinged with grey, tawny along the fore border 

 from the base to the middle, where there is a short dark brown stripe. 

 Halteres brown, with yellow knobs. Abdomen with four broad yellow 

 interrupted bands ; the first very broad, forming a triangular yellow 

 spot on each side ; nnder side with entire bands. Legs yellow ; coxce 

 black ; hind femora with black tips ; hind tibire and hind tarsi tawny ; 

 a slight brown band on each hind tibia. Fern. Head with a black stripe 

 in front. 



Not very common. (E.) 



Genus XXVIII. MELJTHREPTUS. 



MELITHREPTUS, Lw. btrg. Musca p., L. ; Rm. ; Dg. ; Shr. 

 Syrphus p., Fb. s. i. ; LI. ; Mg. Scteva p., Fb. s. a. ; Fin. 

 rophoria, St. F. et Srv. ; Ztt. ; Rdn. 



Corpus angustum, Jlavo-pictum. Epistoma vix elongatum, ad os promi- 



nens. Antennce capitis latitudine conjunclim breviores, basi disjunctce ; 



articulus quartus dorsalis ; quintus subnudus. Ala> areolis discali et 



subapicali margine posteriore fere cequaliter remotis et illi parallelis, 



areola subapicali Integra, lobo axillari distincto, venis subcostali et 



radiali ad marginem disjunctis, vena transversa prcebracliiali ante 



areolce discalis medium locata. Abdomen segmentis septem conspicuis. 



Mas. Oculi connexi, Abdomen longum, cylindricum. Fcem. Oculi 



modice remoti. Abdomen brevius, depressum. 



Body slender, rather small, almost bare. Head, sides of the thorax, 



scutellum, bands or spots of the abdomen, and legs, yellow. Head 



semicircular. Epistoma but little elongated horizontally, protuberant 



towards the mouth. Antenna 5 -jointed, porrect, nutant, jointly shorter 



than the breadth of the head, separated at the base ; first and second 



joints small ; third almost round ; fourth very small, seated on the base 



of the third; fifth setiform, almost bare. Wings rather short and 



narrow ; flight feeble ; 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 prcebrachial vein placed before the middle of the 



discal areolet. Alula3 small. Halteres uncovered. Legs slender. 



Male. Eyes connected. Abdomen long, cylindrical. Fern. Eyes 



parted. Abdomen shorter, depressed. 



