DK(JSUi'lIlLA. i'.M 



a. Wings moderately broad. 



b. Body ferrnglnous. Species 1. 

 d b. Body testaceous. 



c. Transverse veins clouded with l>rou'n. 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. 1^48(1761); F.; Gmel.; Mcq. ^erriKjinea, 

 alls subci/iereis, halteribns pedibusque testaceis, abdomine plus rainusve 

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



Ferruginous. JFings d'ujldly (jrvyisli, moderately broad ; veins black, 

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

 testaceous. Abdomen with piceous bauds or wholly piceous above. 



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

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

 (E.S.I.) 



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

 Zett. — erythruphlhalma, Pz. Fidva, alls subtesiaceis sat anguslis, hal- 

 teribus pedibusque testaceis, abdomine piceo. Long, li; alar. 2| lin. 



Taivny, slender. Wuiys rather narrow, tcith a very sl'ujld testaceous 

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

 thrice its length from the pra;brachial 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. 

 — pkaleruta, Meig. ; Mcq. Testacea, alls subtestaceis sat talis, venis 

 transversis infuscatis, halteribns pedibusque testaceis, abdomine fasciis 

 inteiTuptis fuscis. Long. 1-li; alar. 2i-3 lin. 



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

 testaceous ; cubital and praebrachial veins hardly diverging between the 

 transverse veins, tvhich are clouded tcith broion ; discal transverse vein 

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

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

 ])ale testaceous. Abdominal segments with brown bauds, which are 

 interrupted on the disc. Fem. Abdomen elliptical. 



Common. (E. S. I.) 



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

 — cirginea, Meig. ; Zett. D. S. — melanogaster, Meig. Testacea, alia 

 subtestaceis sat latis, halteribus albidis ; Mas, al)domine nigro ; Foem. 

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



