222 KANSAS UNIVERSITY QUARTERLY. I 



apical fourths. The hind femur has its bristles arranged as ; 

 usual, but they are shorter, more delicate and more numerous 



than usual, so as almost to give the impression that the femur , 



has a soft, short beard on both the extensor and flexor borders. : 

 The hind tibia has on its lateral surface, near the flexor border, 



three short, delicate bristles, all in the middle third ; on the '■ 



same surface, near the extensor border, there are two stouter i 



bristles, one at the junction of the basal and middle, the other j 



at the junction of the middle and apical thirds ; on the mesal ] 



surface, near the flexor border, there are no bristles, and near .■ 



the extensor border only one, and that small, not far from the ■ 



middle ; the usual large preapical of the extensor border is pres- '■ 

 ent. 



The wing is very faintly brownish yellow, the color being : 



most pronounced toward the costa. The small cross-vein is , 



very distinctly, the hind cross-vein almost imperceptibly. I 



clouded with brown. The third vein is spinose about half way I 



to the small cross vein. j 



I 

 ] 



Muscina pallidicornis Bigot. i 



i 



Two males and four females; Rio de Janeiro, July; and | 



Chapada, no date. i 



Bigot had the female only. The specimens agree with Bigot's j 



very insufficient description, except as to color of palpi and 



width of front. He says in his Latin description "palpi fusci," ', 



and in his French "palpes noires." In all my specimens the i 



palpi are neither brown nor black, but of an orange-yellow color. 



They are, however, so thickly beset with black bristles that ; 



unless examined with care and in a good light it is easy to ' 



mistake their color for brown or black. Again, Bigot says the I 



front is wide. The measurements are : Width of head, 2.6 mm., i 



of front, 0.7 mm., which I should not call wide. This is, how- j 



ever, merely a matter of personal experience. If the species i 



should turn out to be a new one, I would suggest for it the I 



name Muscina americana. i 



The eyes are minutely and sparsely hairy. The dorso- ventral i 



diameter of the head is 2 mm. ; of the bucca, 0.2 mm. The | 



ground color of the bucca, facial fossa, gena, geno-vertical | 



plate, vitta, occiput and posterior orbit is black. All these j 



parts, except the vitta, are poUinose ; the occiput, posterior ; 



