390 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 51. 



dominal segments distinct on the median portion of the abdomen. 

 Vasiform orifice (pi. 53, fig. 3) subcircular in some specimens, in others 

 elongate, the rim thickened, particularly on the caudal margin. Oper- 

 culum about half filhng the orifice in some specimens, but in those 

 with the more elongate orifice, it is smaller; caudal spines very stout. 

 Thoracic and tracheal folds scarcely distinguishable and not armed 

 on margin with any special comb. 



Adult male. — Color yellow, shaded with brown; eyes dark brown, 

 wings m balsam mounts transparent. Antennae (pi. 53, fig. 2) im- 

 bricated, segment III with a circular distal sensorium, and armed 

 with a long spine. In some specimens the spine is absent. Segments 

 IV to VII imbricated; V and VII each with a distal sensorium. Pro- 

 portions of the segments as follows: I, 0.064 mm.; VI, 0.09 mm.; 

 VII, 0.09 mm. Claspers (pi. 53, fig. 1) 0.112 mm. long, romided at 

 the distal extremity, and acute. Just within the distal spur there is a 

 bilobed structure, which sometimes shows a smaU third lobe on the 

 proximal part; spines few and prominent. Length of forewing 0.88 

 mm., length of body from vertex to tip of claspers about 0.96 mm. 



On the leaf the case appears jet black, convex, and without waxy 

 secretion. 



Adult female. — Similar in color to the male, but larger. Distal 

 segment of antennae armed with a prominent spine on its proximal 

 third and that part of the segment distad to this tapering. Size varia- 

 ble, from 0.96 to 1.44 mm. Forewings from 0.96 to 1.2 mm. 



Described from pupa cases, males and females in balsam mounts, 

 and pupa cases on foliage. 



Type.— Cat. No. 19198, U.S.N.M. 



ALEUBOPLATUS (ALEUROPLATUS) OCULIMINUTUS. new species. 



Plate 54, fig. 2; plate 63, figs. 5-7. 



Specimens of this species were received from Mr. F. W. Urich, 

 April, 1913, and were taken on Ficus species C'metapel") in Trinidad. 

 This is the only collection of the species that we have. 



Pupa case (pi. 54, fig. 2).— Size 0.832 by 0.672 mm.; shape 

 oval, broadest across the abdomen. Suture separatmg the thorax 

 and abdomen not distinct. Sutures marking off the abdommal 

 segments very faint, not darkened in color as are those of related 

 species. Color black; margin of case (pi. 53, fig. 5) with evenly 

 roimded shallow teeth, each tooth with a clear pore at its base. About 

 0.48 mm. from the margin of case there is a submarginal row of smaU 

 pores. These are arranged alternately, forming a zigzag row around 

 the case. Between this row and the margin of the case there is a 

 checkered area somewhat similar to that found in vinsonioides, but 

 the present species shows at least two rows of inclosed areas and one 



