390 INSECTS. DIPTERA. 



Gen. ANTHOMYIA, MOSILLUS, SCATHOPHAGA, THYREOPHORA, SPH^E- 

 HOCERA. 



b. Antennae inserted near the buccal cavity. 

 Gen PHORA. 



II. Destitute of wings. 



7. Apterce. 

 Gen. CARNUS. 



Gen. MUSCA, Lin. Lat. 



Scales large, covering the greater part of the balancers ; wings 

 distant ; palpi filiform, or slightly thicker at their upper ex- 

 tremity ; antennae almost as long as the anterior face of the 

 head, the third joint much longer than the first two, with a 

 seta often plumose. 



The insects of this genus are found in fields and houses. They fly with rapidity, 

 making a humming noise, produced, it is believed, by the friction of their wings 

 against the sides of the thorax. Those which are found in apartments, and named 

 domestic flies, crowd upon every species of food, particularly those which contain su- 

 gar. They destroy the gilding and ceilings of apartments by their excrements, and 

 the whole genus, whose habits are chiefly carnivorous, annoy men and cattle. 



M. vomitoria, Lin. Common Blue-bottle Fly. Head yellowish., gol- 

 den white ; eyes brown ; thorax black ; abdomen thick and short, 

 of a deep brilliant blue, and with long black hairs around ; legs 

 black ; wings a slightly blackish tint. Europe. Shaw, vi. pi. 107. 



M. carnaria, Lin. Head golden yellow at its anterior part ; eyes 

 reddish ; antennae plumose ; all the body strewed with black hairs ; 

 thorax gray, with four longitudinal black lines ; abdomen black, 

 shining, with four whitish square spots on each segment ; extre- 

 mity of the last segment reddish ; feet black, hairy ; wings with 

 a slight tint of black. 6 lines long. Inhabits Europe, deposit- 

 ing its larvae alive on meat Nouv. Diet. xxi. 439. 

 This species is viviparous, and produces living young upon meat and dead animal 

 matter. In six or seven days the larvae are full grown, and about seven lines long. 

 They enter the ground to undergo their change into pupae ; their skin forms a co- 

 coon of an oblong form and brown colour ; and in fifteen or eighteen days after this 

 metamorphosis the perfect insect appears. 



M. domestica, Lin. Antennae black, with an elongated and flat- 

 tened termination and lateral bearded seta ; eyes reddish brown ; 

 fore part of the head satiny white, the rest black ; thorax black 

 cinereous, with four longitudinal blackish bands ; abdomen black- 

 ish brown above, with blackish, elongated spots, and below of a 

 pale yellowish brown ; feet black. Inhabits Europe, in houses, &c. 

 -Nouv. Diet. xxi. 440. 



M. meridiana, Lin. Antennae plumose, black ; body shining black ; 

 an elongated spot of golden yellow on each side of the head near 

 the eyes ; abdomen short, thick, furnished, as well as the thorax, 

 with some stiff black hairs ; wings yellow from their origin to near 

 the middle and along the exterior border, the remainder white 

 and transparent. 5 lines long. Inhabits Europe, the larvae in 

 cow-dung Nouv. Diet. xxi. 440. 



M. serrata, Lin. Head cinereous, whitish before and red in the 



