14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.68 



color, the abdomen has three series of black dorsal spots, in addition 

 the lateral edges of both the tergites and sternites are black, and the 

 wing markings are not so extensive nor so dark, there being a rather 

 noticeable isolated spot about middle of last section of fourth vein. 

 Locality. — Base of Corcovado, Rio de Janeiro, Brazil, August 18, 

 1915 (P. G. Russell). Originally described from the Island of St. 

 Vincent, British West Indies. 



MINETTIA PICTICGRNIS Coquillett 



Differs from the two preceding species in having the wings almost 

 without dark clouds, only a faint suffusion being present on the two 

 cross veins. The basal two antennal segments are black, the face has 

 but one black spot, there is a faint dark mark on lower margin of 

 cheek at middle, and the thoracic dorsal vittae are narrow and brown- 

 ish, being much paler than the apical pair of scutellar spots. 



Specimens are before me from Panama Canal Zone and Guatemala. 

 Originally described from Nicaragua and subsequently recorded 

 from Texas. 



MINETTIA EVITTATA, new species 



Female. — Tawny yellow, slightly shining. Face with a round 

 velvety black spot in center of its lower margin; ocellar triangle 

 hardly darkened; antennae yellow, third segment missing in type; 

 palpi yellow. Thorax without vittae; two black spots at apex of 

 scutellum. Apices of abdominal tergites faintly and narrowly 

 darkened, the apical three with a faint dark central line. Legs 

 3^ellow. Wings marked as in figure 2, the markings fuscous. 



A robust species. Postvertical and orbital bristles long and strong, 

 ocellar pair fine and short, surface of frons with numerous fine black 

 hairs ; face opaque, almost flat ; cheek higher than width of palp, the 

 marginal hairs carried upward to about middle of sides of face; 

 occiput strongly haired, especially below. Thorax with three strong 

 pairs of postsutural dorsocentral and one strong pair of prescutellar 

 acrostichal bristles; the posterior intra-alar strong, and one bristle 

 in line between it and the supra-alar ; mesojDleural hairs strong, setu- 

 lose below; both sternopleurals strong. Abdominal tergites with 

 strong marginal bristles. Fore femur without an anteroventral 

 comb; mid tibia without posterior median bristles; hind femur with 

 some short preapical anteroventral bristles. Venation as in figure 2. 



Length, 7 mm. 



Type. — Barro Colorado, Panama Canal Zone, July 17, 1923 (E. C. 

 Shannon). Cat. No. 28448, U.S.N.M. 



A rather aberrant species owing to the presence of a distinct bristle 

 in line between the posterior intra-alar and supra-alar bri.stles. The 



