DKOSOI'IIILA. 237 



a. Wings moderately broad. 



b. Body ferruginous. Species 1. 

 b b. Body testaceous. 



c. Transverse veins clouded with brown. Species 3. 



c c. Transverse veins not clouded with brown. Species 4. 

 a a. Wings narrow. 



b. Body tawny. Species 2. 

 b b. Body hoary. 



c. Thorax striped. Species 5, 6. 



c c. Thorax not striped. Species 7. 



1. cellaris, L. Fn. 1848 (1761); F. ; Gmel. ; Mcq. Ferruginea, 

 alls subcinereis, halteribus pedibusque testaceis, abdomine plus minusve 

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



Ferruginous. Wings slightly greyish, moderately broad ; veins black, 

 tawny towards the base ; discal transverse upright. Halteres and legs 

 testaceous. Abdomen with piceous bands or wholly piceous above. 



Abundant; feeds on Boleti and on oak-apples^ in the larva 

 state, also on the matter adhering to casks of wine or of beer. 

 (E.S.I.) 



2. funebris, F. E. S. iv. 323. 48 (1792); Gmel.; Fal. ; Meig.; 

 Zett. erythrophthalma, Pz. Fulva, alls subtestaceis sat angmtis, hal- 

 teribus pedibusque testaceis, abdornine piceo. Long. 1^; alar. 2|- lin. 



Tawny, slender. Wings rather narrow, with a very slight testaceous 

 tinge; veins testaceous; discal transverse upright, parted by nearly 

 thrice its length from the praebrachial transverse, and by much more 

 than its length from the border. Halteres and legs testaceous. Ab- 

 domen piceous, tawny at the base; of the female fusiform. 



Common. (E.) 



3. transversa, Fal. Geomyz. 6. 5 (1820); Meig.; Mcq.; Zett. 

 -phalerata, Meig. ; Mcq, Testacea, alis subtestaceis sat latis, venis 

 transversis infuscatis, halteribus pedibusque testaceis, abdomine fasciis 

 interrupts fuscis. Long. 1-li; alar. 2^-3 lin. 



Testaceous. Wings moderately broad, with a testaceous tinge ; veins 

 testaceous ; cubital and pra3brachial veins hardly diverging between the 

 transverse veins, which are clouded with brown ; discal transverse vein 

 slightly oblique, parted by twice its length from the praBbrachial trans- 

 verse, and by nearly its length from the border. Halteres and legs 

 pale testaceous. Abdominal segments with brown bands, which are 

 interrupted on the disc. Fern. Abdomen elliptical. 



Common. (E. S. I.) 



4. fenestramm, Fal. Geomyz. 6. 4 (1820) ; Meig. ; Mcq. ; Zett. 

 viryinea, Mcio;. ; Zett. D. S. melanogaster, Meig. Testacea, alis 

 subtestaceis sat latis, halteribus albidis ; Mas, abdomine nigro ; Fcem. 

 abdomine piceo-fasciato. Long. 1 ; alar. 2| lin. 



