216 MUSCID^E. 



d d. Antennae not near reaching the epistoma. PIOPHILA. 

 c c c. Third joint of the antennae a little longer than the second. 

 d. Body very long. LISSA. 

 d d. Body moderately long. PSILA. 



Genus I. MICROPEZA. 



MICROPEZA, Meig. Zw. v. 382 (1826) ; Mcq. ; Zett. Musca p., F. E. S.; 

 Schr. LA.; Gmel. Calobatap., F. S. A. ; Fal. ; Latr. RJiagio p., 

 Schr. F. B. Phantasma, Desv. 



Corpus longum, nudum, gracillimum. Caput longissimum, cuneiforme. 

 Proboscis non exserta. Palpi subclavati. Antennae brevissimae ; ar- 

 ticulus tertius subrotundus, secundo paullo longior ; sextus nudus. 

 Thorax longi-fusiformis. Alee breves, anyustce. Abdomen subUneare, 

 thorace plus duplo longius. Pedes longissimi, gracillimi. Fcem. 

 Oviductus linearis. 



Body long, bare, extremely slender. Head very long> cuneiform., with 

 a few bristles, about twice longer than broad. Frontalia very narrow. 

 Front porrect. Face very oblique. Eyes elongate. Proboscis short, 

 thick, not exserted. Palpi subclavate. Antennas very short ; third joint 

 nearly round, a little longer than the second ; sixth setaceous, slender, 

 bare. Thorax elongate-fusiform. Wings short, very narrow; costal 

 vein ending at the tip of the wing ; subcostal ending at about one-sixth 

 of the length; radial ending at one-fifth of the length; cubital and 

 praebrachial slightly diverging to beyond the discal transverse, slightly 

 converging from thence to the border ; discal transverse straight, up- 

 right, parted by full four times its length from the praebrachial trans- 

 verse, and by more than its length from the border. Abdomen nearly 

 linear, more than twice the length of the thorax. Legs very long and 

 slender ; tibiae with very short bristles. Fern. Oviduct linear. 



1. corrigiolata, L. S. N. ii. 995 (1767); F.; Schr.; Gmel.; 

 Meig. ; Mcq. ; Zett.filiformis, F. ; Fal. ; Latr. ; Desv. Nigra, capite 

 subtus et antennarum articulo sexto albis, alis subcinereis, abdomine 

 flavo-fasciato, pedibus fulvis, femoribus posterioribus fusco-bifasciatis, 

 tarsis fuscis. Long. 4 ; alar. 4 lin. 



Black, with slight glaucous tomentum. Head white beneath. An- 

 tennaB black; sixth joint white. Wings slightly greyish. Halteres 

 white. Hind borders of the abdominal segments with yellow bands, 

 which are most conspicuous beneath. Legs tawny ; posterior femora 

 with two brown bands near the tips ; tarsi brown. 



Not rare. (E.) 



Micropeza lateralis and Tetanura pallidwentris have been re- 

 corded as British species. 



