139. Musca refixa, _Walk._ See Vol. I. p. 26. 140. MUSCA GAVISA, n. s. (n. subg. Neomyia). _Foem._ Purpurea, pubescens capite nigro, facie subobliqua, palpis antennis pedibusque nigris, abdomine lato crasso, alis fuscescenti-cinereis basi nigricantibus, alulis obscurioribus. _Var. β._ Viridescenti-cyanea, scutello purpureo. _Female._ Brilliant purple; head black, shining, narrower than the thorax; frontalia dull, linear; face slightly oblique; palpi and antennæ black, the latter not reaching the epistoma; thorax and abdomen with thick black pubescence; abdomen very thick, shorter and much broader than the thorax; legs black; wings brownish grey, blackish at the base; veins black; præbrachial vein forming a much-rounded and very oblique curve at its flexure, hardly curved inward from thence to its tip; discal transverse vein hardly undulating, parted by much more than half its length from the border, and by much less than its length from the flexure of the præbrachial; alulæ dark brownish grey. _Var_. β. Bright greenish blue; scutellum purple. Length of the body 5 lines; of the wings 10 lines. 141. Musca domestica, _Linn._ See Vol. I. p. 128. 142. MUSCA CONDUCENS, n. s. _Mas._ Cinerea, capite albo, palpis antennis pedibusque nigris, thorace vittis duabus latis nigris, abdomine testaceo linea dorsali nigra basi apiceque cinereo-nigris, alis cinereis. _Male._ Cinereous; head white; eyes bare; palpi slender, subclavate; antennæ not reaching the epistoma; thorax with two broad black stripes; abdomen dull testaceous, cinereous black at the base and towards the tip, and with a black dorsal line; wings cinereous; veins black; præbrachial vein forming a rounded and very obtuse angle at its flexure, slightly curved inward from thence to its tip; discal transverse vein curved inward, parted by full half its length from the border, and by a little more than its length from the flexure of the præbrachial; alulæ cinereous. Length of the body 2-1/2 lines; of the wings 4-1/2 lines. 143. MUSCA XANTHOMELA, n. s. _Foem._ Nigra, capite albido, abdomine ochraceo, alis subcinerascentibus, halteribus pallide testaceis. _Female._ Black; head whitish about the eyes, which are red and bare; antennæ not reaching the epistoma; abdomen ochraceous, a little shorter than the thorax; wings slightly greyish; veins black, testaceous towards the base; præbrachial vein forming an obtuse angle at the flexure, straight from thence to the border; discal transverse vein straight, parted by less than its length from the border, and by more than its length from the flexure of the præbrachial; halteres pale testaceous. Length of the body 2-1/2 lines; of the wings 4 lines. 144. MUSCA PRÆDICENS, n. s. (Gen. Graptomyza, _Desv._). _Foem._ Nigra, capite albido-cinereo, palpis antennis pedibusque nigris, thorace vittis quatuor albido-cinereis, abdomine testaceo maculis nigris, alis cinereis, halteribus testaceis.