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Show 3.02 INSECTA. DnYNEIA, Meig. · resents t h e above character, and the eyes Where the proboscts p . les( 1) ontiguous posteriorly m the m~ d' . duals i~ inflated at the end, are c . bd men of these 1U lVl . Somettmes the a o and clavate. Ca:NOSIA, M el.g o -Musca, De Geer. • f species of this subgenus- . the history o a . · h D Geer has given us 7 Its larva hves m mus • e VI 89 v, 2- • · H 1 71K. a jungorum, Insect., '. 'h which are edible. e a so .Lr.tUSC ly m t ose . and most common h ther a rare circumstance rooms, 1 rvre devour eac o ' observed that these a Insects of this order(2). and have a simple seta. among re are shorter, , th In the others, the antenn . 1. in the males. fhe mou The eyes are cont•l guou 5 posterior Y is den'!ely pilose. EniPHIA, Meig.(3) f the H YDROMYZIDES, · characterized 1S Our third division, th.at o head with very prominent eyes;.an follows: an almost tnangular l'ttle arched lamina bordermg as . muzzle: a 1 h' k o inflated, convex. snout o~ . . s ver large; a very t IC pr - the top of the buccal caV1tyf wh~~:itute ~f setre. The antennre ar~ b . and the sides of the ace hart with the seta mos OSClS, · }' d and very S ' h inserted near the front, me m_e 's are incumbent, one on the o~ ~r. commonly plumous •. The w:.g hs at least the anterior ones, ln a• The legs are large, Wlth the t Ig ' .. ted in several. . . to France inhabit aquatic loca~Itles. • All the species mdtgenous l t the anterior ones are Inflated, h' hs or at eas In some, all the t Ig. ' ilose( 4). the seta o f the antennre lS always p (1) Idem. (2) See Meigen. ( 3) Idem. h t different. ( 4) The wings also are somew a ,. DIPTERA. 303 RoPALOMERA, Wied. Where all the thighs are inflated, and the face presents a prominence or tubercle anteriorly(!). OoHTERA, Lat.-Musca, De Geer.-Tephritis, Fab.-Macrochira, Meig. Where the two anterior thighs are very large, compressed and dentated beneath, and the tibire are arcuated, capable of being flexed on the inferior edge of the thighs, and terminated by a strong spine(2). The thighs of the other Hydromyzides are not inflated . EPHYDRA, Fall. The Ephydrre resemble the Ochterre .in the prominence of their eyes, which project posteriorly beyond the head, and in their thick snout; but the seta of their antennre is simple, and merely thickened inferiorly; the palette is rounded at the end. There is a little tubercle or prominence Oll the posterior part of the vertex(3). N OTIPHILA, Fall. Where the head is more rounded, and without any anterior prolongation in the form of a snout; the eyes are less protuberant, and do not project beyond the posterior margin of the head. The seta of the antennre i~ plumous; the palette is proportionally more elongated than in Ephydra and less rounded; no tubercle or prominence on the vertex. We have followed the system of M. Fallen in placing this subgenus here, although we think it would be more proper to arrange it in the ensuing division, near the Heleomyzre, from which it scarcely differs. The N. cellaria, Panz., Faun. Insect., Germ., XVII, 24, which (1) Wied., Anal. Entom. (2) Lat., Gene1·., Crust. et Insect., IV, 347. (3) Fall., Dipt . ., and Wied., Ibid. |
