CHARLES P. ALEXANDER 5 



Dicranomyia miilsa sp. n. 



Dark brown; head grayish, antennae black; legs uniformly colored; wings 

 dusky with a quadrate brown stigmal spot; the radial sector sinuate near the 

 tip, basal deflection of Cui long. 



Male. — Length, 7.6 mm.; wing, 10 mm. 



Female. — Length, 8 to 8.2 mm.; wing, 1L3 to 11.8 mm. 



Rostrum and palpi black. Antennae black, rather short, the flagellar 

 segments oval. Head with a brownish gray bloom. 



Thoracic dorsum with the pronotum yeUow on the sides, darker above; 

 praescutum very deep reddish brown with dark brown stripes which merge 

 insensibly into the ground color; these stripes cover most of the sclerite, the 

 ground color being brightest before the pseudosutural foveae; scutum with 

 the lobes deep liver-brown, the median area and the scutellum with a yellowish 

 or grayish yellow bloom; postnotum dark brown medially, paler on the sides 

 and here with a sparse grayish bloom. Pleura dull yellow with a broad inter- 

 rupted pleural stripe extending from the fore coxa to the sides of the post- 

 notum. Halteres rather short, base of the stem pale, tinged with pale green, 

 remainder of the stem and the knobs dark brown. Legs with the fore and 

 middle coxae dark, hind coxae pale; trochanters brownish; remainder of the 

 legs uniformly brown. Wings slightly suft'used with darker; a large quadrate 

 stigmal spot and a broad brown seam along the cord. Venation: (see plate 

 I, figs. 1, 2) Sc short, ending opposite the origin of Rs; Sd about one-half the 

 length of Sci] Rs sinuate near its tip; basal deflection of Cui very long in the 

 male, half as long again as Cih alone. 



Abdominal tergites dark brown, the basal sternites more j^ellowish, the 

 apical sternites dark brown. 



The female sex is similar to the male but the basal deflection of Cui of the 

 wings is not as long and cell Cui is consecjuently not so wide. 



Habitat. — Peru. Holotype, cf, Matucana, Peru, altittide 

 7788 feet, July 14, 1914. (Parish coll.) Allotype, 9, topo- 

 typic. Paratype, 9 , topotypic. 



This species is readily separated from related species b.y the 

 deep liver-brown color and the peculiar wing- venation. 



Dicranomyia regifica sp. n. 



Color of the head and thorax hght gray, unmarked ; antennae dark brown ; 

 femora hght bro\m, yellow at the tip; wings with an ocellate brown pattern; 

 abdomen banded black and yellow. 



Male. — Length, 7 to 7.2 mm.; wing, 10 to 10.2 mm. 



Female. — Length, 6.8 mm.; wing, 10.3 mm. 



Rostrum rather short, light brown, palpi dark brown. Anteimae dark 

 brown throughout, rather short. Head brownish gray. 



Thoracic dorsum dull opaque gray poUinose, the scutellum much paler, 

 almost white. Pleura hght gray. Halteres rather long, stem pale, the knob 

 dark brown. Legs with the coxae and trochanters light j'ellow, femora pale 



TRANS. AM. ENT. SOC, XLII. 



