410 INSECTA SAUNDERS [ANA. 



Geuus DROSOPHILA, Fallen. 



Drosophila quadbimaculata. 



Testacea ; caput-fiavum ; abdomen oblanceolatum, e maculis nigris tri- 

 vittatum ; alee suhlimpidce, maculis dvubus costalibus fuscis. 



Testaceous, beset with a few black bristles : head pale yellow : eyes 

 bright red : feelers pale yellow ; third joint conical, more than twice the 

 length of the second ; sixth black, very slender, feathered on both sides 

 with a few long hairs, more than twice the length of the third : abdomen 

 oblanceolate, much narrower but not longer than the chest, with three rows 

 of black spots forming three inteiTupted stripes: legs paler than the body : 

 wings almost colourless, with two brown spots on the fore border, one near 

 the base, the other towards the tip : veins black. Length of the body H 

 line ; of the wings 3 lines. 



United States. 



Drosophila albipes, Foera. 



Picea ; fades alhida ; antennce fulvce ; pectoris latera albida ; tibia 

 alba; tarsi Jlavi; ala subcinerece. 



Pitchy : furrows of the face oblique, whitish : feelers tawny ; third 

 joint long-conical more than twice the length of the second ; sixth pitchy, 

 feathered with long hairs, about twice the length of the third : sides of the 

 breast tinged with white: abdomen a little longer and narrower than the 

 chest: shanks white; feet pale yellow: wings pale gray; veins pitchy, 

 tawny at the base : halteres white. Length of the body 1 h line ; of the 

 wings 3^ lines. 



United States. 



Drosophila fronto, Fcem. 



Fulva; caput Jlavum, macula palpisque nigris ; thorax subvittatiis ; 

 abdomen ferrugineum, basi fulmim ; ala subcinerece, ad costam 

 subfulva. 



Tawny: head yellow; a black spot on the crown : palpi black : feelers 

 yellow : chest indistinctly striped : abdomen ferruginous, obconical, a little 



