Valid Names Results

Discochiton javanicum (Green, 1904) (Coccidae: Discochiton)

Nomenclatural History

• Lecanium expansum javanicum Green 1904a: 205. Type data: INDONESIA: Java, on Anomianthus heterocarpus.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name
• Paralecanium expansum javanicum (Green, 1904); Sanders 1906: 9. change of combination
• Discochiton javanicum (Green, 1904); Hodgson & Williams 2018: 33. change of combination and rank

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

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

Remarks

• Systematics: The adult female of D. javanicum is superficially similar to D. expansumD. expansum in brackets): (i) the stigmatic spines are short, stout and sharply pointed (much longer and narrower, more or less parallel-sided and often slightly swollen apically); (ii) the dorsal setae are sharply pointed (parallel-sided with a blunt apex); (iii) preopercular pores about equally frequent around all four abdominal clear areas (generally only present in posterior 2 clear areas), and (v) spiracular disc-pores in complete, broad bands, generally with more than 50 in each band and with each band about 4 or more pores wide (generally less than 40 in a band, each band more or less one pore wide and posterior band incomplete). These differences are clear enough for Hodgson & Williams (2018) to raise this subspecies to a full species.
• Structure: Unmounted material differs from D. expansum in having a minute but regular reticulation. (Hodgson & Williams, 2018 from Green, 1904)
• General Remarks: Detailed description in Hodgson & Williams, 2018.

Illustrations

Citations