434 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.51. 



between the ridges are covered with irregular rows of semicircular 

 dark markings. Submarginal area armed with 26 spines moimted 

 on tubercles, 13 on each side (pi. 75, fig. 7). Thoracic tracheal folds 

 covered with small, dark, somewhat hexagonal markings similar to 

 those present in other species of the subgenus; tracheal pore appar- 

 ently composed of two parts — a dorsal, which is evenly pyriform in 

 outline, and a ventral, which is contained within it, and is subcir- 

 cular and toothed (pi. 75, fig. 9). Pore of the caudal tracheal fold 

 appearing as a mere sht-like structure, having lost nearly all the 

 characters shown by the thoracic pores (pi. 75, fig. 11). Vasiform 

 orifice (pi. 75, fig. 10) subcordate in outline, with the cephahc margin 

 straight. It is situated in the caudal angle of a somewhat heavily 

 chitinized U-shaped structure; its rim well chitinized and armed at its 

 caudal extremity with a prominent nipple-shaped projection. Oper- 

 culum similar in shape to the orifice and almost entirely filUng it, 

 obscuring the hngula. On the leaf the pupa case shows no waxy 

 secretion, appearing as shining, brownish-black disks, much ridged on 

 the dorsum. 



Adults. — Unknown. 



Type. — Cat. No. 19058, U.S.N. M. Described from pupa cases in 

 balsam mounts, and dry upon the foliage. 



DiALEUROPORA, new subgenus. 



There is in the collection an aleyrodid from India and Ceylon 

 which is quite similar to the typical Dialeurodes in regard to the 

 structure of the tracheal folds and pores, and which has an orifice 

 resembhng that met with in some of the other subgenera of this genus. 

 This form is remarkable, however, in possessing on the submarginal 

 area a series of very large pores. On account of this and other 

 noticeable characters it is placed in a separate subgenus. 



Pupa case eUiptioal in shape, yellowish or transparent whitish in 

 color; marginal wax tubes represented by irregular, somewhat 

 flattened, shallow, tooth-like corrugations; vertical waxen fringe 

 absent; dorsal disk without sculpturing or rhachis; submarginal area 

 with a series all around of a few very large simple pores; thoracic 

 tracheal folds without sculpture or with a few minute dot-hke 

 markings; pore a ring-hke opening near the margin; vasiform orifice 

 broadly subcordate, the inner lateral and caudal margins without a 

 comb of teeth; operculum similar in shape and nearly filling the 

 orifice. 



Type. — Dialeurodes (Dialeuropora) decempuncta Quaintance and 



DIALEURODES (DIALEUROPORA) DECEMPUNCTA, new species. 



Plate 76, figs. 1-7. 

 This species was taken by R. S. Woglum, in the Royal Botanic 

 Gardens, Ceylon, on cinnamon, October, 1910, and also on mulberry 

 at Lahore, India. 



