MUSCA

(Lat. a fly.) A Linnman genus of Dipterous insects, now expanded into a family (Muscid a:) of the fifth tribe (jithericera), of the order Diptera in Latreille's system. It is distinguished by a proboscis always very — -prtt, membranous,and bilabiate, generally bearing t\\ ■. and capable of being entirely withdrawn into the oi. \ ity; and a sucker of two pieces. The antenna; always terminate in a plate with a lateral seta. The Muscid a; are divided into the sub-families Crcophilm, which includes the meat-fly (Musca vomitoria), aad the common house fly (Musca do- 786 [s. 800]