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DESCRIPTIONS OF THREE NEW SPECIES OF ALEURODIDAE 

 FROM BRAZIL. 



BY ADOLPH HEMPEL, S. PAULO, BRAZIL. 



Aletirodes horyidiis n. sp. — Pupa-case. — 

 Length, i mm.; elliptical in outline, flat; 

 light yellow in color. The dorsal surface is 

 covered with white secretion, arranged in 

 a median longitudinal row, and a submar- 

 ginal row on each side. Around the margin 

 there is also a very short fringe of white 

 wax. These details are however obscured 

 by a mass of long yellowish, hair-like secre- 

 tion, that envelopes each individual. De- 

 nuded of wax, the margin is found to be 

 doubly crenulated, with the posterior end of 

 the body rounded and the anterior end 

 forming an obtuse angle. The dorsum is 

 slightly wrinkled, and has a short median 

 longitudinal ridge, extending from the ante- 

 rior end to nearly the middle of the body. 



Vasiform orifice subelliptical, broader 

 than long. Operculum hemispherical, 

 nearly fitting the orifice, the free end 

 notched. A long seta is situated on each 

 side of the orifice ; two on the caudal end 

 of the body; and two on the ventral surface 

 of the body just cephalad of the middle. 

 No traces of antennae or legs were found. 



Adult $. — 1.08 mm. long, yellow, eyes 

 black; wings transparent, yellowish, covered 

 with a white powder, .\ntennae of seven 

 joints. Joints 3-7 fine, cylindrical, slender ; 

 joint 2 large, club-shaped. Legs long and 

 slender, nearly reaching to the apex of the 

 closed wings. 



Hub. — On the underside of leaves of 

 guava, Psidium sp., from S. Paulo, Brazil. 

 Accompanied by a species of ant (Cremas- 

 togaster). 



Aletirodes fumifenjih n. sp. — Pupa-case. — 

 Elliptical, convex, black, i.S mm. long. 

 There is a prominent median longitudinal, 

 dorsal ridge, and about six transverse fur- 

 rows. The lateral margin is thick with a 

 conspicuous groove on the dorsal surface, 

 and a short fringe of white wax on the ven- 

 tral surface. Near the posterior end, around 

 the vasiform orifice, there is a large hemi- 

 spherical area, nearly transparent, but dusted 

 with white secretion. The lateral margin is 

 slightly notched in places, but not crenu- 

 lated. Vasiform orifice hemispherical; 

 operculum small, rectangular, fitting the 



