LIST OF DIPTERA. 991 



Ortalis syngenesis, Meig. Dipt. v. 283, 20, pi. 46,/. 29. (Group 

 Rivellia, Desv. Essai Myod. 729.) Zett. Dipt. Scand. v. 2158, 

 6. Musca syngenesis, Fabr. Sp. Ins. ii. 454, 101. Ent. 

 Syst. iv. 359,'l92. Gmel. Ed. Syst. Nat. i. 5, 2858, 249. M. 

 urtics, Schrank, Ins. Austr. 476, 969. Faun. Bote. iii. 2460. 

 Tephritis syngenesis, Fabr. Syst. Antl. 321, 23. Latr. Gen. 

 Crust, iv. 355. Ortalis juncovuin, Fall. Ortal. 19,5. Rivellia 

 herbarum, Desv. Essai Myod. 729, 1. Herina syngenesis, 

 Macq. Hist. Nat. Dipt, ii.433, 7. 



a. England. 



Group Herina, Desv. Essai Myod. 724. 



Group Richardia, Desv. Essai Myod. 728. 

 Group Boisduvalia, Desv. Essai Myod. 730. 



Group Clidonia, Desv. Essai Myod. 732. 



Group Setellia, Desv. Essai Myod. 732. 

 Group Chlorophora, Desv. Essai Myod. 733. 



Ortalis Mentissa, n. s., mas. JEneo-viridis, capite ferrugineo, pal- 

 pis fulvis, antennis ferrugineis, pedibus viridi-ceneis, tarsis ferru- 

 gineis, alis limpidis fusco quadrimaculatis. 

 Body coppery-green : head and chest clothed with whitish 

 hairs : head ferruginous, covered in front with white bloom ; face 

 pitchy ; epistoma slightly prominent : eyes red ; foremost part flat, 

 composed 5 of larger facets than those elsewhere : sucker pitchy, 

 clothed with tawny hairs ; palpi tawny, beset with black bristles : 

 feelers ferruginous, as long as the face ; third joint tapering from 

 the base to the tip, full four times the length of the second ; bristle 

 black, bare, a little longer than the third joint: chest beset with 

 black bristles : abdomen oval, thickly cross-wrinkled, hardly longer 

 than the chest : legs coppery-green, clothed with short black hairs ; 

 knees, trochanters, and feet ferruginous; claws and tips of feet 

 black ; foot-cushions tawny : wings colourless, with four dark 

 brown marks on the fore border, the first of them is a stripe along 

 one-fourth of the length from the base of the wing ; the second and 

 third are bands which do not reach the hind border ; the fourth 

 is an almost round spot near the tip ; wing-ribs and veins black ; 

 hinder veins tawny at the base ; third longitudinal vein slightly 

 curved near its junction with the middle cross-vein, which is rather 



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