Tetraleurodes Cockerell 1902

Dooley Iii, John W., Lambrecht, Susan & Honda, Jeffrey, 2010, Eight new state records of aleyrodine whiteflies found in Clark County, Nevada and three newly described taxa (Hemiptera: Aleyrodidae, Aleyrodinae), Insecta Mundi 2010 (140), pp. 1-36 : 16-17

Genus Tetraleurodes Cockerell 1902

Diagnosis. Puparium: Habitus. Dark brown to black in most species, rarely pale; suboval to broadly oval, often heavily sclerotized. Slide mounted specimen-Lateral margin. Dentate in most species ( Figure 9 , 10 , 11 ),

sometimes crenulated, not deflexed. Pale glandular areas, from V-shaped to round or rectangular in shape, present at base of marginal teeth; thoracic and caudal tracheal margins not differentiated from the rest of the marginal teeth. Dorsum. Longitudinal molting suture meeting dorsal fold or margin; transverse molting suture terminates before or at the submarginal fold. Submarginal row of tubercles present or absent ( Figure 11 ). Tracheal furrows absent. Submarginal fold present with transverse tuberculate bands ( Figure 11 ) with furrow and ridges between submargin and fold. Vasiform orifice. Subcordate, elevated and sometimes overlapping subdorsal fold; operculum subcordate almost filling entire orifice, obscuring the lingula. Venter Antennae terminate at the T 1 pair of legs; legs with or without spinulose bands, the latter may be narrow to broad when present. Caudal and thoracic furrows may have a slight pattern (stippled to smooth). Pores. In a single row or irregular rows within or outside of the transverse bands; disc pores associated with porettes absent or present. Chaetotaxy. Anterior and posterior marginal setae present; caudal setae present. Submedian thoracic setae present or absent; A 1 setae absent; A 8 setae present.

Comments. Two described and one newly-described species are known to occur in Nevada. All Nevada species are black (requiring bleaching) prior to mounting.

References. Cockerell 1902, Quaintance and Baker 1914, Nakahara 1995.

Figures

Figure 9. Tetraleurodes perileuca (Cockerell).

Figure 10. Tetraleurodes quercicola Nakahara.

Figure 11. Tetraleurodes quercophyllae Dooley sp. nov.