372 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.51. 



straight; the operculum is rectangular, transverse, about half filling 

 the orifice; lingula elongate, rounded, and sHghtly swollen at the tip; 

 both operculum and lingula setose. 



Adult male. — Length from vertex to tip of genitalia about 0.95 

 mm.; color similar to that of the female. Antennae (fig. 18) of seven 

 segments. In the specimens at hand these segments are difficult to 

 discover, but in all of them VII seems to be extremely long, much 

 longer than that of the female. Segment II subpyriform, 0.045 mm. 

 long and armed with prominent spines; III subcylindric, 0.084 mm. 

 long, imbricated and armed with several faint, transverse sensoria 

 and a distal fringed sensorium with a central process. Segments IV, 

 V, and VI each about 0.012 mm. long, almost globose on account of 

 their shortness. Segment VII tapering dis tally, 0.18 mm. long, 

 armed with a number of minute transverse sensoria, and tipped 

 with a spine. Forewing with markings similar to those of the female, 

 length about 0.89 mm., width about 0.37 mm.; hind wing about 0.72 

 mm. long, with a red spot similar to that of the female. Hind tibiae 

 0.24 mm. long; hind tarsus, proximal segment 0.066 mm., distal 0.06 

 mm. Foot (fig. 17) with an acute central paronychium, which is 

 armed near its basal portion with a rather prominent spine. Claspers 

 (fig. 14) 0.12 mm. long and 0.066 mm. broad at the base, tapering, 

 with distinctly curved tips and each armed on its inner margin with 

 a few spines; penis bulbous at the base, not as long as the claspers, 

 and upcurved. 



Described from pupa cases on leaves, and other stages in balsam 

 mounts. 



Type.— C&t. No. 19061, U.S.N.M. 



ALEUROLOBUS SETIGERUS, new species. 



Plate 45, figs. 1-6. 



Three collections made by Mr. A. Rutherford at Peradeniya, Ceylon, 

 represent this species. The first was taken on HarpuUia pendula, 

 July 7, 1913, the second on an unknown host, July 25, 1913, and the 

 third on HarpuUia, September 7, 1913. The species is easily sepa- 

 rated from all others in the genus by the row of prominent spines on 

 the submarginal area of the pupa case. 



Pupa case (fig. 1). — Size, 1.2 by 0.96 mm.; shape broadly eUip- 

 tioal, in this respect resembhng taonahae; color black, under the 

 microscope dark brown, with the suture separating the dorsal disk 

 and submarginal area, the eyespots, and the bases of the spines trans- 

 parent yellowish. Dorsum with the abdominal segments distinctly 

 marked and with a broad rachis-structure on the median area 

 quite similar to that found in solitarius. The dorsal disk is armed 

 with four pairs of rather long spines, three of which pairs are on the 

 thorax and one pair on the abdomen. The submarginal area (fig. 3) 



