Australeurodes Dubey

Dubey, Anil Kumar, 2013, Dialeurolonga re-defined (Hemiptera: Aleyrodidae): with a new genus and species from India, two new genera from Australia, and discussion of host-correlated puparial variation, Zootaxa 3616 (6), pp. 548-562 : 551-554

Australeurodes Dubey gen. n.

Type species: Dialeurolonga operculobata Martin & Carver in Martin, 1999: 69. Holotype puparium. Australia: Queensland, Ipswich, 1.vii.1952, on Leptospermum saundersoni , in Australian National Insect Collection, Canberra [Not examined].

Diagnosis: Puparium pale, about 1.7 times longer than wide, margin crenulate; margin with a row of setae including anterior and posterior marginal setae, with truly marginal bases (similar to those of anterior and posterior marginal setae); caudal and thoracic tracheal openings at margin shallow indented and with rounded teeth. Dorsal surface smooth, without tubercles; submargin not demarcated from dorsal disc; median length of cephalothorax shorter than abdomen; longitudinal and transverse moulting sutures almost reaching margin; cephalothoracic and abdominal segments suture visible, most reaching outer subdorsal area; median length of abdominal segment VIII apparently reduced, but pockets located on boundary of segment VI/VII. Cephalic and first abdominal setae absent. Eighth abdominal setae present. Vasiform orifice triangular, operculum with 4 pronounced lobes, occupying anterior half to two-thirds of orifice; lingula lobulate and exposed. Thoracic tracheal furrows absent. Caudal furrow narrow, without tubercles. Ventrally tracheal fold stippled.

Etymology. The new genus is named after Australia from where the type species was collected and the suffix - aleurodes often used for coining new names in whiteflies.

Remarks: The new genus differs from Dialeurolonga by the presence of a row of marginal setae, shallowly indented tracheal combs, median length of abdominal segment VIII much reduced, intersegmental sutures reaching subdorsum, and by the absence of cephalic and first abdominal setae, punctured dorsum and median pore on abdominal segment VIII. It is also unique among whitefly genera in having lobulate operculum occupying only anterior half to two-thirds of the orifice. Australeurodes gen. n. is similar to Bemisia Quaintance & Baker and Parabemisia Takahashi but differs from these genera in the shape of operculum and lingula and by the absence of cephalic setae. In addition, it differs from Bemisia by the presence of marginal setae, and from Parabemisia by the indication of thoracic tracheal combs. This monobasic genus is based on the description of Dialeurolonga operculobata in Martin (1999).

FIGURE. 10 A. sinus sp. n., paratype puparium, India (Kerala). 10, dorsal view with details of symmetrical placement of subdorsal setae.