106 MUSCID^. 



Subfamily 5. MUSCIDES. 



MuscieB, Mcq. ; Westw. MuscaricBy Zett. Miiscidce p., Bigot. Sto- 

 moxydece p., Westw. 



Corpus Ireve, latum, crassum. Caput non vesiculosum. Arista plumosa. 



Thorax brevis. Alulce magncB. Pedes longitudine mediocres. 



Body short, broad, thick. Head not vesiculose. Arista plumose. 

 Thorax short. Alulce large. Legs of moderate length. 



The Ifuscides feed, in the larva state, on decaying matter; 

 many of them are viviparous, and several species are excessively 

 abundant. 



a. Proboscis thick, soft, obtuse, retractile. 1. Musca, 

 a a. Proboscis slender, porrect, smooth, shining, acuminated. 2. Sto- 



MOXYS. 



Genus I. MUSCA. 



Musca, Meig., et Mesembrina, Meig. Zw. iv. Musca, etc., Desv. ; Mcq. ; 

 Westw. ; Meig. Zw. vii. ; Zett. Sareophaga p., Zett. 



Corpus pubescens, setosum, latum, robustum. Color varius. Prontalia 



lata. Antenna? decumbentes ; articulus tcrtius linearis, apice rotun- 



datus, secundo duplo ti'iplo aut quadruplo longiore ; sextus plumosus. 



Abdomen subovatum, thorace pauUo latins non longius. 



Prontalia broad, thickly striated, with a row of bristles on each side ; 



foveas of the face very shallow ; facialia bristly along more than half 



the length ; facialia of the peristoma bristly ; lateralia large. Third 



joint of the antennse linear, rounded at the tip, from twice to four times 



the length of the second ; sixth stout at the base, plumose nearly to 



the tip. Costal vein ending at a little in front of the tip of the wing. 



Abdomen subovate, a little broader but not longer than the thorax, 



a. Praebrachial vein forming a right or hardly acute angle. — Callij^hora, 



Desv., etc. Species 1, %. 

 a a. Prtebrachial vein forming a slightly obtuse angle. 



b. Colour bright metallic. — Lticilia, Desv., etc. Species 3-5. 

 b b. Colour blackish-blue. — Lucilia, Mcq. Species 6. 

 b b b. Thorax black. Abdomen green or blue. — Melinda, Desv. — 

 Calliphora p., Mcq. — Dasyphora, Desv. — Sareophaga p., Zett. 

 Species 7, 8. 

 b b b b. Colour not metallic. 



c. Abdomen not pale on each side. 



d. Abdomen not tessellated. — Nitellia, Desv. Species 9. 

 d d. Abdomen tessellated. 



e. Abdomen not pale beneath. — Pollenia, Desv. Species 10. 

 e e. Abdomen pale beneath. — Musca, Meig., etc. Species 11. 



