626 Pomona College Joi-rnal of Entomology 



Pupa case — Size about 1.20 by 0.88 mm. Somewhat octahedral in outline, 

 widest at thoracic region, acute ccplialad. Color, under hand lens, shining black; 

 under microscope, deep black in color. Covered with a thin, glassy substance. 

 The dorsum with a characteristic keel extending from the cephalic margin to the 

 vasiforni orifice. There is in the thoracic region, on each side, a short distance 

 within the margin, a curved, depressed line, extending caudad to about the first 

 abdominal segment. Abdominal segments extending out to marginal rim and 

 strongly reflexed caudad. Along tlie abdominal segments with somewhat trachea- 

 like structures which extend froui the thoracic region to the vasiforni orifice. 

 Thickened, subovate rim, extending to the vasiforni orifice. A pair of setae on 

 the caudal end of the large, thickened, subovate rim. 



Vasiform orifice semicircular, as broad as long; operculum subsemicircular, 

 but larger than broad. 



Habitat — On Thea japotiica I,., at Nishigahara, Tokyo, collected by the 

 author, winter, 1908. 



Type in the entomological collection of the Imperial Agricultural Experiment 

 Station. .Jajian, and cotype in U. S. N. M. 



Aleyrodes spinosus n. sp. 

 (Figure '208, R-S) 



Pupa case — Size 0.9'2 by 0.(i8 mm. Oval in outline. On tiie leaf, with hand 

 lens, sliining dark brown, with brown spines projecting in all directions, mainly 

 upwards. Medio-longitudinal ridge on dorsum. Abdominal segments distinct. 

 The lateral fringe is very short or almost wanting. Under microscope pale brown ; 

 margin finely crcnulated; the arrangement and comparative length of spines is 

 shown in the figures. 



Vasiforni orifice small, subeircujar. but broader than long, bounded by a 

 chitinized band; operculum subsemicircular, but longer than broiad ; lingula 

 obsecure. 



Habitat — The host is unknown. This species was found by the writer among 

 Coccida? from Formosa, 1909- 



Type in the entomological collection of Imperial Agricultural Experiment 

 Station, Japan, and cotype in U. S. N. M. (Nishigahara, Tokyo, August, 1911-) 



Explanation of Figures 

 Figure 207 



A, Aleyrodes shizokaensis. Pupa-case 



B, Aleyrodes shizokaensis. Detail of marginal rim of pupa-case. 



C, Aleyrodes shizokaensis, Vasiform orifice of pupa-case. 



D, Aleyrodes shizokaensis, Forewing. 



E, Aleyrodes shizokaensis, Male genitalis. 



F, Aleyrodes tokyonis. Pupa-case 



G, Aleyrodes tokyonis, Vasiforni orifice of pupa-case. 



H, Aleyrodes tokyonis. Marking of skin about vasiform orifice. 



