Valid Names Results

Discochiton trifasciatum (Green, 1922) (Coccidae: Discochiton)

Nomenclatural History

• Lecanium (Paralecanium) trifasciatum Green 1922a: 1024. Type data: SRI LANKA: Batticaloa, on Hemicyclea [=Hemicyclia].. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name
• Paralecanium trifasciatum (Green, 1922); Green 1937: 307. change of combination
• Discochiton trifasciatum (Green, 1922); Hodgson & Williams 2018: 69. change of combination

Common Names

Ecological Associates

Hosts:

Families: 3 | Genera: 3

Geographic Distribution

Keys

• HodgsoWi2018: pp.16-18 ( Adult (F) ) [species of Discochiton]

Remarks

• Systematics: The diagnostic characters of the adult female of D. trifasciatum are: (i) legs present and well developed, tibia + tarsus particularly long and sometimes fused; (ii) dorsal setae each stoutly setose, tapering to a blunt apex; (iii) dorsal setae distributed in a reasonably clear polygonal pattern and generally extending medially; (iv) preopercular pores each quite large, with a granulate surface; (v) preopercular pores only associated with CA2–CA4, CA1 without pores; (vi) tibia without setae; (vii) antennae reduced to probably 3 segments (segmentation obscure), and (viii) multilocular disc-pores few and only present on abdominal segments VI and VII. Only two species of Discochiton have fully-developed legs, D. trifasciatum and D. luzonicum. These two species are very similar but the latter species has preopercular pores associated with CA4 only. (Hodgson & Williams, 2018)
• Structure: “Adult female flat, broadly rounded, subround, the margin indented on the frontal and stigmatic areas. Colour pale translucent green, with three broad, reddish brown transverse bands across the dorsum.” (Green, 1922: 1024 in Hodgson & Williams, 2018). Slide-mounted adult female. Body small and almost round. Length 2.0 [4–5] mm, width 1.9 [3–5.0] mm. (Hodgson & Williams, 2018)
• General Remarks: Detailed redescription a.nd illustration in Hodgson & Williams, 2018

Illustrations

Citations