342 CLASS vni. 



ash-grey insect, that resembles a small moth, is found on walls in moist 

 situations ; it can turn itself about very cleverly, and springs more than 

 it flies. The larva is dirty yellow, with a black-brown head and awl-shaped 

 horny tail, and lives in decaying vegetable matter. BOUCHE Naturgesch. 

 d. Ins. Taf. n. figs. 20, 21; Psych, palustris MEIG. GUR. Iconogr. Ins. 

 PI. 92, f. 5, &c. 



Lasioptera MEIG. (Diomyza MEGERLE.) 



Sub-genus : Lasiopteryx STEPH., WESTW. (spec, of Lasioptera 

 METG.) 



Zygoneura MEIG. 



Sub-genus : Lestremia MACQ. 



Mycetophila MEIG. Antennae porrect, cylindrical, sedecim- 

 articulate. Palps incurved, quadriarticulate. Ocelli two or three, 

 unequal, the middle one the least. Tibiae spurred at the apex, the 

 posterior with spiny sides. 



Sub-genera : Leia MEIG., Boletina STAGER, Sciophila HOFFMANN- 

 SEGG, Gnoriste HOFFMANNS. 



Comp. H. STANNIUS BemerJcungen ueber einige Arten der ziveiflugler 

 Gattungen Macrocera, Platyura, Sciophila, Leia, und Mycetophila, OKEN'S 

 Isis, 1830, pp. 752 758 ; STAGER, KKOEYEB'S TidssTcrift, in. 1840, 

 pp. 228 288. 



Platyura MEIG. (excl. PI. tipulo'ides.) 

 Geroplatus Bosc, FABR., LATR. 



Comp. Bosc Actes de la Soc. d'ffist. not. de Paris, Tom. i. p. 42, &c. ; 

 LiioN DUFOUR Revision et Monographic du genre Ceroplatus, Ann. des Sc. 

 not. sec. SeVie. Tom. xi. 1839, Zool. pp. 193 213, PI. 5. 



Cordyla MEIG., LATR. Antennas duodecimarticulate, com- 

 pressed, clavate. Ocelli none. 

 Sciara MEIG. (Molobrus LATR.) 

 Campylomyza WIEDEM., MEIG. 

 MycetoUa MEIG. 



Macronewra MACQ. 

 Asindulum LATR. 

 Synapha MEIG. 

 Rhyphus LATR. 



Macrocera MEIG. Antennae long, setaceous, with the two basi- 

 lar joints thick, the rest indistinct. Ocelli three. Wings obtuse, 

 parallel, incumbent. 



