Mr. J. 11. Malloch on Exotic Muacaridte. 271 



XXXY.— Exotic Muscaridte (Dip(era).—Y.* 

 By J. R. Malloch, Washington, D.C. 



Subfamily Pitaoniinje. 

 Genus Euphaonia, nov. 



Generic characters. — Arista pubescent; eyes hairy; frons 

 of female with a strong pair of cruciate bristles; upper 

 orbital directed backward and outward, second directed in- 

 ward. Thorax with strong presutural acrostichals ; prealar 

 very long ; prosternum, pteropleura, and hypopleura bare. 

 Hind tibia with ealcar. First posterior cell not narrowed 

 apically. 



Genotype, the following species. 



Euphaonia fulvohumer alls, sp. n. 



Female. — Metallic dark blue. Head black, opaque, orbits 

 and face with whitish pruinesceuce. Thorax not vittate ; 

 liumeri and region immediately surrounding tliem and a 

 streak from them to bases of wings reddish fulvous ; scu- 

 tellum slightly violaceous on disc. Abdomen unmarked. 

 Legs black. Wings greyish. Calyptr?e brown. Knobs of 

 hal teres fuscous. 



Eyes short-haired ; frons one-thii'd of the head-width ; 

 orbits without forwardly directed bristle at middle ; para- 

 facial linear ; cheek as high as width of third antennal seg- 

 ment, the latter 1*5 as long as second segment ; pubescence 

 of arista not longer than its basal diameter. Thorax with 

 two pairs of strong presutural acrostichals; postsutural 

 dorso-ceutrals 4 ; posthumeral and presutural bristles dupli- 

 cated ; scutellum not haired below ; sterno-pleurals 1 : 2. 

 Fore tibia with one autero-dorsal and one posterior bristle ; 

 mid-tibia with about six posterior bristles ; hind femur with 

 about three preapical autero-veutral bristles; hiudtiljia with 

 four or five autero-ventral setuke and three autero-dorsal 

 bristles, ealcar long, apical postero-dorsal bristle minute. 

 Outer cross-vein straight. 



Length 6 mm. 



Type, Port Famine, Tierra del Fuego, South America 

 ( Charles Danvin) . 



* For Part IV., see Anu. & Ma<?. Xat. Hist. (9) viii., Oct. 1921, 

 pp. 414-425. 



