328 DIPTERA OP NORTH AMERICA. [PART IV. 



Zetterstedt, Diptera Scandinavia, Vol. X, p. Sttt. 

 Erioptera fascipennis. 



Grisea ; antennis obscuris ; alis cinereo-hyalinis, undique villo- 

 sulis, fascia nubeculari abbreviate, brunnea; halteribus albidis. 

 % 9 . Long. % 2^, ? saltern 3 lin. 



Zett. Ins. Lapp. 831, 9, etc. 



Tota griseo-fusca, opaca, pubescens. Antennas obscurae. Oculi 

 nigri. Palpi fusci, articulo 2do incrassato. Thoracis limbus 

 hurneralis pallidus. Scutellum testaceum. Abdomen distincte 

 pallide pubescens, in % linea utrinque laterali et unica media 

 dorsali obscurioribus, in 9 stylis caudalibus ferrugineo-flavis. 

 Alae sordide albidae, irisantes, undique pube brevissima tenu- 

 issima vestitae, nervis brunneis. Nubecula distincta, saturate 

 brunnea; ex hac descendit fere ad medium alae fascia angusta 

 indeterminata valde obsoleta fusca, nervos tracsversos transiens ; 

 haec vero pictura in 9 paullo perspicuior quam in %. Areola 

 obovata nervos tres simplices emittit. Nervus longitudinalis 9nus 

 longiusculus, leniter flexuosus, apice ad marginem interiorem alas 

 non longe ab octavo remotus. Nervulus connectens 1 adest. 

 Halteres albidi. Pedes pubescentes, fusci, femoribus basi paullo 

 dilutioribus. 



[Translation. — Gray, antennae dark, wings grayish-hyaline, pubescent 

 on the whole surface, and with an abbreviated clouded brown band ; 

 halteres whitish ; £ , 9 • 



Altogether grayish-brown, opaque, pubescent ; antennae dark ; eyes 

 black ; palpi brown, second joint incrassated. Humeral border of the 

 thorax pale ; scutellum testaceous ; abdomen with a distinct pubescence 

 of pale hairs, in the male on each side with a darker lateral line and a 

 similar one in the middle ; in the female, the ovipositor is ferruginous- 

 yellow. Wings of a sordid whitish, iridescent, clothed on the whole 

 surface with a very short and delicate pubescence ; the veins brown. 

 Stigma distinct, saturate brown ; a narrow, indefinite, very obsolete brown 

 band runs from it along the central cross-veins ; this picture is more 

 distinct in the female than in the male. Discal cell obovate ; it emits 

 three simple veins ; the last longitudinal vein is elongated, gently sinu- 

 ated ; its tip is rather approximated to the tip of the preceding longitudinal 

 vein. The connecting nervule is present. 1 Halteres pale. Feet pubescent, 

 brown ; femora paler at the basis.] 



1 Marginal cross-vein. 



