| abstract | Helenicula hsui sp. nov. (figs. 1-6)
Diagnosis: SIF 5B-N-3-2111.0000 IP = 629(662)
This new species is closely related to Helenicula scanloni Domrow et Nadchatram, 1964, but differs from it in the following characteristics: 1. sum of dorsal and ventral setae 90, instead of >100 2. length of antero-centrodorsal setae almost equal to pygosomal ones, only 26µm 3. microtarsala of leg II before (instead of behind) the tarsala. This species is also similar to Helenicula simena (Hsu et Chen, 1957), but differs in: shallow scutum; shorter scutal setae; ventral setae <40 (not 56) in number; body setae short, <40µm.
Formula of palpal setae B/B/N’N’B. PW/SD=1.6-1.8.
Scutal measurements (in micra) of holotype and paratype in parentheses: AW 52(47) PW 69(64) SB 9(10) ASB 25(25) PSB 14(15) AP 20(22) AM 27(29) AL 45(42/46) PL 41(40) Sens 19×17+?(-) HS 32/36(38) DS 25/26(27/25) VS 21/26(21/26).
Body setae: Dorsal setae 47-51 in number, arranged: 4.(9.2).(6.2).8.(6.2).2.4.1.1.=47; 4.(10.2).8.8.8 11=51. ventral setae 34-40 in number. NDV=81-91.
Legs: Formula of coxal setae 1-1-5(6); length of legs: I 225(231), II 183(196), III 221(235).
Leg I tarsala 12µm
Leg III genuala and tibiala short, only 6-9µm; length of tarsus 56-62(59)µm.
Holotype and 1 paratype deposited in the Sanitation and Anti-Epidemic Station of Guangdong Province, Guangzhou, China. |