NO. 2156. SUBFAMILY ALEYRODINAE—QUAINTANCE d BAKER. 375 



short, stout, waxy filaments, produced from marginal pores, spaced 

 some distance apart. There are also a series of submarginal pores, 

 which produce finer and longer wax filaments. They are also spaced 

 some distance apart. There are two small slender setae on cephahc, 

 and two similar but smaller setae on lateral margins. The surface of 

 dorsum and especially of the margin covered with a very great 

 number of extremely minute circular pores, which tend to form de- 

 tached groups. These pores are also present over the radial patches^ 

 but the grouping does not differ from the rest of the margin, the 

 pores not being arranged in any sort of pattern. 



The margin of the pupa case turns quite white a short time before 

 the adult emerges. Vasiform orifice conical, apex pointing caudad. 

 Anterior margin flat. Lateral margins sloping inwards; the sloping 

 surface with six ridges on each side. Operculum rhomboidal; the 

 posterior margin somewhat incurved. The operculum extends to 

 about or a little beyond the center of the vasiform orifice. Surface 

 setose, color light brown. Lingula two-jointed, lower joint short, 

 stout. Upper joint club-shaped. The Ungula extends for one-tliird 

 its length beyond operculum; the surface setose, color brown. 

 Two long hairs spring from near the tip of the lingula and extend for 

 some distance beyond the vasiform orifice. 



Pupa extracted from puparium. 



Head fairly broad, color yellow; the oceUi lighter in color. Thorax 

 rather dark yellow, abdomen fight yellow. Eyes dark maroon. 

 Unfolded wings dark gray. Legs almost transparent, well formed, 

 setose. Sides of abdomen flattened and spread out. Abdominal 

 segments fairly distinct, but the vasiform orifice can not be made 

 out. Antennae not noticeable in the specimen examined. When 

 the adult emerges from the pupa case the dorsum sphts up not only 

 from the cephahc margin to thorax and across the thorax, but also 

 right round the inner edge of the margin so that in empty pupal 

 cases the anterior portion of the dorsum is usually missing. I have 

 observed no parasites on this species. 



Adult female.— Length, 1.9 mm.; wing, size 1.9 mm, by 0,85 mm. 



Body hght yellow; antennae and legs semi transparent white. 

 Tip of mentum gray, A lateral gray stripe on each side of the first 

 segment of the abdomen, and dorsally a rather broad diagonal gray 

 patch on each side of the same segment. Dorsally each abdominal 

 segment dark gray nearly the entire width of the body. An oval 

 gray plate situated on the dorsal surface of the last segment of the 

 abdomen. It incloses the vasiform orifice. Ventrally the abdomen 

 covered with fine short hairs. Body and legs covered with white 

 meal. Eyes renifonn, almost divided; color dark maroon. Wings 

 immaculate. Vasifonn orifice broadly conica\ the anterior edge 

 somewhat produced and with a flat indenture in the center. Oper- 



