CLASS V. INSECTA. 299 



Fam. XIV. Muscidx. Leach. 

 MusciDES. Latreille. 

 Froboscis retractile, terminated by a very remarkable dilatation. 



Stirps 1. — Anfcn?!^ inserted near the front, setigerous : palpi internal : 

 halteres visible : anterior legs simple : licad not subglobosc : hinder hgs 

 not larger than the rest : wings horizontal : ei/es sessile. 



Genus 539. MOCILLUS. Latr., Leach. 

 Antouue shorter than the head : head hemispheric. 

 Sp. 1. Moc. cellar ins. Linne, Leach. 

 Inhabits wine-vaults. 



Stirps 2. — Antennce inserted near the front, setigerous: palpi internal: 

 halteres visible: anterior legs simple: head not subglobose: hinder 

 legs not longer than the rest: icings divaricating: ei/es simple : ver- 

 tex narrow. 



Genus 540. TEPIIRITIS. Latr., Fair., Jllig., Leach. Trypeta. 

 Mcig. DacIS. Fair. 

 Thorax cylindric : proboscis entirely retractile. 



Sp. 1. Teph. Cardui. Latr., Leach. 

 Inhabits thistles. 



Stirps 3. — Antenna inserted near the upper part of the head, setige- 

 rous: palpi internal: halteres visible : anterior legs simple: head not 

 often subglobose: hinder /('^'s not larger than the rest: zvings de^exed: 

 ej/es sessile : vertex broad. 



Genus 54 L CALOBATA. Mcig., Illig., Latr., Fabr., Leach. 

 Antenna very much shorter than the head, the third joint longer than 



the second: bodj/ long, filiform: legs long, filiform. 

 Sp. 1. Cal.filiformis. Latr., Leach, 

 Inhabits France and England. 



Genus 542. SEPEDON. Latr., Leach. B.^cca. Fabr. McLio. 



Schellenbei-g. 

 Antenna very much longer than the head, inserted on an elevation; the 



second joint very long, cylindric. 

 Sp. 1. Sep. pulustris. Latr. 

 Inhabits marshes. 



Genus 543. LOXOCERA. Meig., Illig., Latr., Fabr., Leach. 

 Antenna \ery much longer than the head; last joint linear : abdumcn 



narrow, linear. 

 Sp. 1. Lox. Ichneiunonia. Meig. 

 Inhabits flowers in marshes. 



Genus 544. SCATOPIIAGA. Meig., Latr., Leach. Pyropa. Illig. 

 Antenna shorter than the head : head round, sub-globose : vertex hori- 

 zontal : hodij very much elongated. 



