from Meigen^s ** Sijstematische Beschreihung.^ 



161 



65. Floras. Antenncs contiguous, basal joint very thick, conic. Proboscis 

 exserted, horizontal, as long as the head. 

 . 66. Cylle'nia. AntcnncB contiguous, basal joint cylindric, third conic. 

 Proboscis exserted, horizontal, as long as the head. 



67. Toxo'pHoRA. Antenncs contiguous, cylindric, third joint short, acute. 



Proboscis exserted, bent upwards. . «. , . 



Fam. VIII. Jsi'lici. {fig, 52.) 



AntenncB porrect, approximating at the 

 base, turned upwards, triarticulate, 

 third joint not ringed. Hypostoma with 

 a mystax (" a semicircle of bristles or 

 hairs above the mouth." Meigen.). 

 From impressed. Proboscis horizontal, 

 porrect, short. Abdomen with 7 seg- 

 ments. Haltei-es naked. Wings paral- 

 lel, incumbent. 



a. Tarsi ivith 2 Onychii. ^silus chrysitis. 



68. Dio'cTRiA. J72^eMWfP, third joint having an obtuse biarticulate apical 



style or bristle. liind tibice straight, ciliated on the internal side. 



69. Dasypo^gon. AntenncB, third joint having a short acute apical style. 



Tibics straight, not ciliated. Anns of the females spinulose. 



70. La^phria. ^?z^ewwce, third joint obtuse, without an apical style. 7W(S 



arcuate. 



71. ^si^Lus. AntenncB^ third joint having a naked elongate setiform apical 



style. TibiiB straight, spinulose. 



b. Tarsi with no Onychii. 



72. Leptoga^ster. 



Fam. IX. HYBOTINiE. (/g.53.) 

 Antenna: porrect, approximating at the base, 

 triarticulate, the two basal joints very closely 

 united, so as apparently to constitute one ; 

 third joint not ringed. Hypostoma not 

 bearded, flat. From flat. Proboscis hori- 

 zontal, exserted, short. T'mw^ very gibbous. 

 Abdomen slender, with 7 segments. Halteres 

 naked. Wings parallel, incumbent. 



73. Hydros. AntenncB, third joint conic, with 



an apical pubescent seta. Hind femora clavate. 



74. Ocydro'mia. A7itenncs, third joint lenticulate (of the form of a lens), 



with an apical seta. Legs all simple. 



75. CEda LEA. AntenncB third joint elongate, compressed, without an 



apical seta. Hind femora (thighs) clavate. 



Fam. X. ^MPFDIiE. {fig, 54.) 

 AntenncB porrect, approximating at the base, 

 triarticulate; third joint not ringed, the apex 

 with a style or seta. Hypostoma not bearded. 

 Ocelli 3. Proboscis exserted, very perpendi- 

 cular. Palpi incurved. Abdomen with 7 

 segments. Wings parallel, incumbent. Ony- 

 chii 2. 



76. Hi'lara. AntenncB, third joint subulate, 



with an apical style. Proboscis shorter - -»"- ^f^^'*- 



than head. Wings with an oblique transverse nervure at the apex. 

 Vol. V. — No. 24. m ' 



H^bos musckriufc 



l^'mpis opaca. 



