Tuberaleyrodes crypta, Dubey & Martin, 2018

Dubey, Anil Kumar & Martin, Jon H., 2018, A review of the genus Tuberaleyrodes Takahashi (Hemiptera: Aleyrodidae) with description of five new species from Brunei, Hong Kong and Malaysia, Zootaxa 4402 (2), pp. 251-282 : 262-263

Tuberaleyrodes crypta sp. nov.

( Figs 128–136 )

Tuberaleyrodes machili Martin & Lau, 2011: 18 . Misidentification.

Puparium. Elongate elliptical ( Figs 128 , 130 ); white; without visible wax secretion; dimorphic; female 1279–1357 µm long, 884–977 µm wide; male 1069–1162 µm long, 698–813 µm wide; found on lower surface of leaves. Margin. Crenulate, 10–17 crenulations in 0.1 mm. Margin modified into combs in thoracic tracheal pore opening area ( Fig. 133 ) but deeply emarginated in caudal tracheal pore ( Fig. 130 ).

Dorsum. Submargin not differentiated from the dorsal disc, with 8 pairs of simple setae, some of them reaching beyond margin. Submarginal lines clearly visible. Six pairs of subdorsal setae, located on tubercles, two pairs on cephalus and one pair each on meso- and metathorax and laterad of abdominal segment IV and VI. Minute tubercles along cephalothoracic and abdominal segment sutures present ( Figs 131, 132 ). Median length of meso- and metathorax equal. Abdominal segment VII not reduced medially. Submedian pockets and depressions present on all the cephalothoracic and abdominal segment sutures. Minute pores scattered throughout dorsum. Caudal furrow measured in female 154–168 µm long, male 110–151 µm long.

Vasiform orifice. Elongate cordate ( Figs 134, 135 ), posteriorly notched, 59–74 µm long, 39–64 µm wide; operculum elongate cordate, margins emarginated, posteriorly truncate, 29–34 µm long, 34–42 µm wide. Lingula apex exposed, not reaching beyond posterior end of the orifice.

Venter. A pair of ventral abdominal setae 29–46 µm long, 42–52 µm apart. Antennae inside prothoracic legs, 82–114 µm (keel 6–9 µm) long.

Chaetotaxy. Anterior and posterior marginal setae 23–35 µm and 41–51 µm long, respectively. Cephalic and first abdominal setae located on elevated dorsal cuticle. Cephalic setae 78–124 µm (basal elevation 39–73 µm + apical setae 11–52 µm) long; first abdominal setae 66–95 µm (basal elevation 36–53 µm + apical setae 29–46 µm) long; eighth abdominal setae anterolateral to vasiform orifice, 51–83 µm long and caudal setae pointed ( Fig. 136 ), 83–92 µm long, longer than the length of vasiform orifice.

Material examined. Holotype and paratypes. Hong Kong: Victoria Peak, 6 puparia in 3 rows (2 in each row) on slide under one cover slip, on Machilus chinensis , 3.iii.1990, J. H. Martin (5693) ( NHM) . The holotype is first from the right of third row of 2 puparia.

Host plant. Machilus chinensis (Lauraceae) .

Distribution. Hong Kong.

Etymology. The species is named as ‘ crypta ’ to indicate it’s close similarity with T. machili .

Remarks. This species was previously misidentified by Martin & Lau (2011) as T. machili ; it is compared here with type species of T. machili , and identified as a new species. Puparia of this species superficially resemble that of T. machili in placement of the dorsal setae and tubercles along the abdominal segments, but differ from it in having the vasiform orifice longer than wide against circular vasiform of the T. machili .

Figures

FIGURES 128–129. Tuberaleyrodes crypta sp. nov., camera lucida drawings, holotype puparium, 128, dorsal and ventral views, vasiform orifice and caudal furrow; 129, thoracic tracheal pore area.

FIGURES 130–136. Tuberaleyrodes crypta sp. nov., microphotographs, holotype puparium, 130, dorsal view; 131, cephalothorax; 132, abdomen; 133, thoracic tracheal pore; 134, vasiform orifice and caudal furrow; 135, vasiform orifice, enlarged view; 136, caudal pore and caudal setae.