ove CLASS VIII. 
phora Macq. (Calliphora Roxty., Mufetia and Melinda Rosry.), 
Lucilia Macg., (Lucilia Rosiy., Phornvia and Pyrellia Rosty.), 
Ochromyia Maca. 
b) Feet moderate. Seta of antenne naked at the apex. 
Sub-genera: Onesia Rospin., Cynomyia Roxziy., Agria Rosin., 
Maca. (Agria, Gesneria, Clyto Rosty.), Sarcophaga Mutc., Phrisso- 
podia Maca. 
c) Feet elongate. 
.Sub-genera: Dexia Metc., Prosena Satnt-Farceau and SeErv., 
Dinera Rosiy., Scotiptera Macg., Rutilia Rosi. 
To the division a) the common house-fly Musca domestica L., belongs, 
SCHELLEN. Tab. 1., J. C. Kuuuur Geschichte der germeinem Stuben-fliege, 
mit 4 Kupfertafeln. Niirnberg, 1764, 4to. The larve live especially in 
horse-dung, and these insects are only found in the neighbourhood of human 
habitations. In a month’s time one generation succeeds another, for the 
larva is full grown in fourteen days ; the fly also after fourteen days comes 
from the pupa, and the egg has only to lie a single day before the young 
maggot creeps out. Hence it is that they multiply so astonishingly, and that 
in warm summers, especially at the beginning of autumn, they may prove 
so numerous. In the open country and on the roads various species of fly 
are met with of the same size, which are usually confounded with them, as 
Musca corvina Fapr., Panzer Deutschl. Ins., Heft 60, Tab. 13, Musca 
nigripes male, Heft 105, Tab. 13, Musca ludifica fem. Also the unspotted, 
gold-green glistering Musca cesar L., the blue flesh-fly Musca vomitoria, 
L., (Calliphora fulvibarbis Rowry.), Rors. /ns. 1. Mus. et Culic. Tabs. 1x. 
xX., Panzer Deutschl. Ins. Heft x. Tab. 19, which has a shining blue 
abdomen with black stripes, the head black with red-brown palps. This 
fly has a fine sense of smell, and readily penetrates into houses in summer 
to lay its eggs on meat in kitchens and larders. The same applies to those 
belonging to the 
Division b) Musca carnaria L., (Sarcophaga carnaria Metc.,) Raum. 
Ins. wv. Tab. 28, figs. 2, 8, DE GEER Jns. vi. Tab. 3, figs. 5—18, Cuv. 
Rk. Ant. éd, ill., Ins. Pl. 178, fig. 2; still larger than the former, abdomen 
grey with black spots; black antennz and palps. It has been estimated 
that the progeny of a single female of this species may in one summer 
amount to more than 500 millions of flies!. 
2) Seta of antenne downy or naked Mute. (Species of Thereva 
FAsr. ) 
1 Meicen Syst. Besch. der Eur. Zweiflug. Ins. v. s. 21, ‘‘ Hitte die Natur also 
Keine miichtigwirkenden Gegenanstalten zur Vertilgung getrofien....so wiirde dieses 
Herr den Menschen wohl wenig Fleisch iibrig lassen, und die Fastentage wiirden stets an 
der Tagesordnuny sein!” 
