SCIOMYZA. 159 



Wings moderate ; costal vein ending on the hind border at some little 

 distance from the tip ; subcostal ending at about one-third of the length 

 of the wing; mediastinal ending at hardly beyond half; radial ending 

 at about seven-eighths ; cubital slightly diverging from the prsebrachial 

 between the transverse veins, more slightly converging to it from the 

 discal transverse to the tip ; discal transverse nearly straight and up- 

 right, parted by much more than its length from the prsebrachial trans- 

 verse, and by full half its length from the border. Abdomen a little 

 longer than the thorax. Legs pubescent, slightly bristly. Male. Ab- 

 domen Unear. Fern. Abdomen fusiform. 

 These flies generally inhabit woods. 



a. Wings unspotted. 



b. Wings bordered with white. — Chatocera, Desv. Species 1. 



b b. Wings brown. Species 3. 



b b b. Wings grey. — Di/c/ia, Desv. Species 3-5. 

 a a. Wings spotted. — P/terl/ellia, Desv. Species 6. 



1, albo-costata, Fal. Sciom. 12. 3 (1820); Meig. ; Mcq. ; Zett. 

 Testacea, cano-tomentosa, anteunis luteis, thorace fusco-quadrivittato, 

 alis cinereis albo-marginatis, pedibus anticis albis. Long. 2-2^ ; alar, 

 4-5 hn. 



Testaceous, with hoary tomentum. Head pale-yellow? frontalia red. 

 Antennae luteous. Thorax with four brownish stripes. Wings grey, 

 white in front and behind ; discal transverse vein nearly straight, 

 slightly oblique, parted by more than twice its length from the prse- 

 brachial transverse, and by more than half its length from the border. 

 Fore legs black. 



Not rare. (E, S. I.) 



2, fuscipennis, ]Meig. Zw. vi. 16. 15 (1830) ; Mcq. ; Zett. Fer- 

 ruginea, anteunis luteis, thorace fusco-quadrivittato, alis fuscis, pedibus 

 fulvis, tibiis anticis tarsisquc fusccscentibus. Long, 2-3 ; alar. 4-6 lin. 



Ferruginous. Head whitish-yellow beneath ; frontalia bright tawny. 

 Antennae luteous ; sixth joint black. Thorax with four brownish stripes. 

 Wings brown, darker in front except at the base; discal transverse 

 vein very slightly undulating, nearly upright, parted by much more 

 than its length from the praebrachial transverse, and by more than half 

 its length from the border, Halteres testaceous. Legs tawny ; tarsi 

 and fore tibiae brownish. 



Not common. Inhabits woods, (E. S.) 



3, obtusa, Fal. Sciom. 13. 4 (1820) ; Meig. ; Mcq. ; Zett. Fidva, 

 antennarum articnlo terl'io nhjro^ thorace fusco-quadrivittato, alis sub- 

 cinereis, tibiis tarsisquc nigricantibus. Long. 2-3 ; alar. 4-6 lin. 



Taxony. Head bright-yellow in front, whitish-yellow beneath ; pro- 

 boscis ferruginous ; palpi yellow. Antcnnce tawny ; third joint black, 

 tawny towards the base ; sixth black. Disc of the thorax with grey 

 tomentum, and with four brownish stripes. Wings slightly greyish, 



