506 PROCEEDINGS OF THE XATIONAL MUSEUM. 



GONOMYIA (LEIPONEURA) PUER. new species. 



Brownish-gray; scutellum pale on caudal margin; pleura? plumb- 

 eous, striped with yellow; wings hyaline. 



Female. — Length, 4,.5-5 mm; wing, 4-4.5 mm. Head: rostrum 

 brownish-yellow; palpi dark brown; antenna) light bro^Yn; front 

 whitish, flesh color, semituberculate; vertex and occiput bluish-gray 

 pniinose; gense brighter blue-gray. 



Thorax: mesonotum, prsescutum browmish-gray except the 

 extreme lateral margin wliich is light yellow, broadest anteriorly; 

 pseudosuture elongate-triangular, reddish-bro\vn ; scutum brownish- 

 gray, paler medially and on the externo-caudal angles; scutellum 

 yellow; post-notum brownish-gray, thickly blue pniinose. -Fleurse 

 plumbeous with a yellow stripe beginning above the fore coxa, con- 

 tinuing caudad to below the halteres, brightest anteriorly; sternum 

 yellowish. Halteres pale, knob slightl}^ darker. Legs: coxas and 

 trochanters yellow; femora, tihisa and tarsi yellowish-bro^vn, uniform. 



Wings: hyaline, stigma very faintly indicated. (See fig. 14.) 



Abdomen: dorsum dark brown; genital segment dull reddish- 

 yellow. 



Type. — In U. S. National Museum collection (No. 14932). 



Paratypes. — Females: mesonotum grayish-brown, the cephalic and 

 lateral margins of the prascutum pale, cream-color; pale pleural 

 stripes broader; lateral margins of the abdominal tergites pale on 

 their basal half, giving a semiannulated appearance. 



Habitat. — Uoloiype. — Female, Santo Domingo, West Indies (Aug., 

 1905), (Busck, coll.). 



Paraty2)es. — Females, with the type (San Francisco Mountains; 

 Sept., 1905). 



GONOMYIA (GONOMYIA) DELICATA. new species. 



Antenna) with two basal segments light yellow; head light yellow 

 with a dark line on vertex; mesonotum broN^ii; pleurte yellow with 

 distinct bro\\-n stripes; legs unicolorous, yellowish-brown; wings 

 hyalhie; stigma pale bro\ni. 



Female. — Length, 4.6 mm.; wing, 6 mm. Head: rostrum and palpi 

 dark brownish-black; antermje, two basal segments light j^cllow, 

 rcmabider dark browniish- black; front and occiput light yellow; 

 vertex light yellow with a linear dark brown medial stripe; genas 

 faintly tinged with darker. 



Thorax: pronotum light yellow with a broad median grayish- 

 bro\\'n stripe; mesonotum brown; pseudosuture elongate, triangular, 

 deep, sliiny reddish; a pale line from the mesal end of this fovea 

 continuing back to the transveree suture. Lateral margin of the 

 prajscutum bright light _yellow, broadest behmd. Scutum browai, 

 indistinctly paler medially; scutellum light brown; post-notum 



