EPIIYDUA. 



267 



Nigricans, facie flavicaute, thorace fnsco Uneolis alhidis, alisfmcanis h>/a- 

 Uiio-guttatis, iarm ferrugineis. Long, f; alar, l^- lin. 



Blackish. Face yellowish, Thorax broicn, with whitish stripes. 

 Wings brownish, with hyaline dots. Tarsi broicn. 



Common in moist places. (E. I.) 



31. comta, Hal. E. :\L T. 170 (1S3-1).— c/«e;-m.? Desv. Nigra, 

 facie albida, thorace fnsco, alis fiiscanis hyalino-guttatis. Long. \ ; alar. 



1 lin. 



Black. Face whitish. Thorax brown. TFings brownish, with hya- 

 line dots. 



Generally one-half less than E. noctula, of which it may be a 

 variety. (E. I.) 



32. quadrata, Fal. Act. Holm. 1813. 255. 5. G (1813); Meig. ; 

 Mcq.; Hal. A. N. H. iii. ilO. 31; 'LtH.—graminum, Hal. E. M. L 

 176. Nigricans, thorace fusco Uneolis albidis, alis fusco-nubecidosis 

 margine antico nigro-tessellato, tarsis ferrugineis. Long. |-; alar, li lin. 



Blackish. Thorax brown, with ivhitish stripes. TFings clouded with 

 brown, tessellated with black along the fore border. Tarsi ferruginous. 

 Var. /3. Face whitish. Var. y. Face yellowish. 



Common, (E.I.) To the same group belong E. 'paliulurn, 

 E. lacustris, and E. quadrigultata, Meig. 



Subgenus 9. Teichomyza. 



Teichomyza, Mcq. D. ii. 535 (1835). Scatella p., Desv. Fphydra 

 p., Hal. 



Caput depressum ; facie longe porrecta fornicata setosa, sub antennis im- 

 pressa ; clypeo recondito. Peristomatis margo pectinatus. AntenncB 

 arista elongata glabra temd. Ungues validi curvati ; onychiis conspi- 

 cuis hirtis. Fcem. Abdomen apice sufjcompressum, rirna verticali. 

 Head depressed. Face porrect, arched, bristly, impressed beneath the 



antemue ; clypeus withdraicn. Border of the peristoma pectinated. Arista 



long, bare, slender. Clatos stout, curved. 0)iychia conspicuous. Fem. 



Abdomen compressed at the tip, with a vertical furrow . 



33. fusca, Mcq. D. ii. 535 (1835); Hal. Fusco-olivacea, thorace 

 lineolis duabus anticis cinereis, alis fuliginosis ; Mas, femorii3us mcdiis 

 subtus pectinatis, inctatarso antico iucrassato. Long. 2 ; alar. 4 lin. 



Brownish olive-colour. Thorax in front with two grey stripes. 

 Wings smoky. Male. Literraediate femora pectinated beneath. Fore 

 metatarsus incrassated. 



" On the walls of damp outhouses, in winter, where tlie larvse 

 (as observed by Macquart) feed on the decomposed mortar." 

 (E. I.) This lly occurs in great numbers in Jvondon and in some 



