2 INSECUTOR INSCITI^ MENSTRUUS 



but seems a smaller, frailer insect. Without a known male, 

 the position of Prosopolepis is somewhat uncertain. In the 

 Monograph, we placed it with the Joblotia group on account of 

 the contiguous eyes. Peryassu places it with the Wyeomyia 

 group, and he may be in the right. We await the discovery of 

 a male. 



Wyeomyia fauna, new species. 



Prothoracic lobes violet-blue ; occiput dark-scaled, without 

 white border to the eyes ; abdomen black-scaled above, silvery 

 white below, the colors separated on the sides in a nearly 

 straight line ; legs with the fore tarsi dark ; mid tarsi with the 

 tip of the first joint and the second to fifth marked continu- 

 ously with white below ; hind tarsi with the last two joints 

 white all around ; wing scales dense, broad, blackish, obliquely 

 subtruncate. 



Types, two males and one female. No. 21999, U. S. Nat. 

 Mus. ; Bas Obispo, Canal Zone, Panama, August 1913 (J. 

 Zetek). 



Close to ]V. pandora D. &. K., of which it may be a variety. 



Sabethinus moerbista, new species. 



Head black-scaled, a white border to the eyes, narrowing 

 above, forming a small spot on the vertex, widening into a 

 large patch on the sides below ; proboscis moderate, slightly 

 thickened at tip. Prothoracic lobes large, contiguous dorsally, 

 clothed with black scales, with some white ones at tip and base, 

 changing with the incidence of the light. Mesonotum with 

 dark bronzy scales ; postnotum dark brown, devoid of scales, 

 but with a group of dark bristles posteriorly. Abdomen black- 

 scaled above, white below, the colors separated on the sides in 

 a somewhat irregular line, the black projecting down a little 

 at the posterior edge of each segment. Legs bronzy black 

 scaled, the tarsi without any white markings. Wing scales 

 large, broad, many obliquely subtruncate ; cross-veins with 

 the lower considerably within the other two. Length of thorax 

 and abdomen together, 4 mm. 



