CHRYSOMYIA. 27 



thiform, broader than the first; third and following much broader 

 than the second, forming a globose somewhat compressed flagellum ; 

 seventh extremely minute ; eighth setiform, rather hairy at the base, 

 seated near the tip of the flagellum. Thorax obovate, rather long, 

 with a transverse suture. Scutellum unarmed. Wings long, lanceolate, 

 finely pubescent, incumbent, parallel ; veins indistinct. Alulae small. 

 Halteres large, ovate. Abdomen with 5 segments, large, nearly glo- 

 bular, bare, convex above, flat beneath, broader than the thorax. 

 Legs slender. Male. Eyes contiguous. Fern. Eyes remote. Ocelli 

 more in front of the head than those of the male. 



These flies move slowly, and inhabit flowers, hedges, and 

 thickets, in the summer ; their larvae feed on decayed wood ; one 

 species on that of the elm, 



1. ater, Fb. s. a. 254. 1 (1805); LI. ; Pz. ! fn. iv. 5; Mg. ; 



Mq. ; Ztt. -pacJiyg aster, Fin. Niger, alls albidis basi nigris, pedibus 

 flavis, femoribus nigris ; Mas. antenriis nigris ; Fcem. antennis fulvis. 

 Long. 1-| ; alar. 3 lin. 



Black, shining. Proboscis tawny. Wings whitish, tinged with black 

 for half the length from the base ; veins pale yellow. Halteres dark 

 brown. Legs yellow; femora black. Male. Antennae black. Jem. 

 Antennae tawny. 



Eare. (E.) 



2. Leachii, Ct. ! b. e. 1. 42 (ISZty.pallipennis, Mq.; Ztt. Ni- 

 ger, antennis fulvis, alls albis, pedibus flavis, tibiis posticis apice fusco- 

 maculatis. Long. 1^ ; alar. 3 lin. 



Black, shining. Proboscis and antenna tawny. Wings white ; veins 

 and halteres pale yellow. Legs yellow ; a brown spot near the tip of 

 each hind tibia. 



Eare. (E.I.) 



Genus VIII. CHRYSOMYIA. 



CHRYSOMYIA, Mq. d. 1. 262 (1834) ; Ztt. Musca p., Fb. ; Shr. Ne- 

 motelus p., Deg. Rhagio p., Shr. Sargus p., Fb. ; Mg. ; Fin. ; Ct. 

 Chloromyia, Den. 



Corpus mediae aut minoris magnitudinis, oblongum, parum pubescens. 

 Color metallicus, aureo-viridis. Pictura nulla. Epistoma declive. 

 Ocelli in vertice approximati. Antennae 6-articulatse ; articuli tertius 

 et sequentes flagellum ellipticum fingentes ; sextus setiformis, termi- 

 nalis. Scutellum inerme. Alarum areola discoidalis venas 4 obso- 

 letas emittens, vix in summum marginem interiorem extensas. Ab- 

 domen ovale. Mas. Oculi contigui. Fcem. Oculi remoti. 



