Cohicaleyrodes caerulescens (Singh) Singh, 2010

Dubey, Anil Kumar & Ko, Chiun-Cheng, 2010, Aleurotrachelus Quaintance & Baker (Hemiptera: Aleyrodidae) and allied genera from Taiwan, Zootaxa 2685, pp. 1-29 : 12-14

Cohicaleyrodes caerulescens (Singh) comb. nov.

( Figs 28–30 , 34–36 )

Aleurotrachelus caerulescens Singh, 1931: 59 .

Crenidorsum caerulescens (Singh) David et al., 2006: 25 .

Material examined. Taiwan: Nantou, 1 puparium on Schefflera octophylla , 30.v.1995; K. C. Chou; 1 puparium on S. octophylla , 12.vii.1995, K. C. Chou; 1 puparium on S. octophylla , 30.viii.1994, K. C. Chou; 1 puparium on Celtis koraiensis , 18.xi.1994, K. C. Chou; 1 puparium on Morus australis , 20.v.1994, K. C. Chou; 1 puparium on Emilia sonchifolia , 12.vii.1995, K. C. Chou; Taichung, 2 puparia on 2 slides, on Ampelopsis brevipedunculata , 20.vi.1995, K. C. Chou; 2 puparia on Morella rubra , 29.xii.1993, K. C. Chou; Taipei, 2 puparia on Sloanea formosana , 30.x.1995, K. C. Chou; 2 puparia on Turpinia formosana , 6.iii.1994, K. C. Chou; 1 puparium on Ficus superba , 11.xi.1995, K. C. Chou; 1 puparium on Morus australis , 25.ix.1995, K. C. Chou ( NTU).

Host plants. Artocarpus heterophyllus (= Artocarpus integrifolia ) ( Singh, 1931); Celtis sinensis , Gardenia florida , Lagerstroemia indica , Myrica rubra , Salix sp. ( Takahashi, 1932); Scolopia oldhami ( Takahashi, 1933) ; Bischofia javanica ( Takahashi, 1935) ; Rosa sp. ( Rao, 1958); Rosa chinensis ( Dubey & Ko, 2008) ; Ampelopsis brevipedunculata , Celtis koraiensis , Emilia sonchifolia , Ficus superba , Morus australis , Morella rubra , Schefflera octophylla , Sloanea formosana , Turpinia formosana (new records). Distribution. India ( Singh, 1931); Taiwan.

Remarks. The puparia of this species are distinguished from other Cohicaleyrodes species of Taiwan by the absence of meso-, and metathoracic setae, much smaller cephalic and eighth abdominal setae, and the subcordate vasiform orifice. David et al. (2006) placed this species in the genus Crenidorsum possibly considering the shape of transverse moulting suture and median length of abdominal segment VII. Singh (1931) states “on clearing the pupa gets pale white.” In our observations, the presence of crescent-shaped scallops on the outer submedian/inner subdorsum is a major characteristic of the genus Crenidorsum . Puparia of this species lack crescent-shaped scallops on inner subdorsum; marginal crenulations without glandular bases; abdominal segment VII not reduced medially (as in most of the species described by Bink-Moenen (1983)); and a pale puparia, assigning this species into the genus Cohicaleyrodes .

Figures

FIGURES 28 – 30. Puparium, Co. caerulescens (NTU). 28, dorsal and ventral views (digits 1 – 9 indicating the position of the submarginal setae). 29, margin. 30, posterior end of puparium and vasiform orifice.

FIGURES 31 – 36. Microscopic images of puparia. 31, A. tuberculatus, puparium. 32, same, margin. 33, same, vasiform orifice and caudal end of the puparium. 34, Co. caerulescens, puparium. 35, same, margin. 36, same, vasiform orifice.