Caccothryptus taiwanus, Yoshitomi, 2015
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publication ID |
https://doi.org/ 10.5852/ejt.2015.147 |
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publication LSID |
lsid:zoobank.org:pub:00F1D3DF-F6E2-4D73-A289-664ED02DD747 |
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DOI |
https://doi.org/10.5281/zenodo.3793903 |
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persistent identifier |
https://treatment.plazi.org/id/578B475A-54DA-4600-9FFF-F5E7045F814E |
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taxon LSID |
lsid:zoobank.org:act:578B475A-54DA-4600-9FFF-F5E7045F814E |
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treatment provided by |
Carolina |
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scientific name |
Caccothryptus taiwanus |
| status |
sp. nov. |
Caccothryptus taiwanus sp. nov.
urn:lsid:zoobank.org:act:578B475A-54DA-4600-9FFF-F5E7045F814E
Figs 1A View Fig , 2 View Fig A–E, 4A–B
Diagnosis
Smaller species in the genus; TL = 3.73–4.05 mm in male, 3.75–4.20 mm in female; parameres weakly pointed in lateral view; apical emargination of parameres deeply U-shaped, with small projections in inner margins.
Etymology
The species is named after the type locality.
Material examined
Holotype
TAIWAN: ♂ ( TARI), “Taiwan: Ilan Fushan ---- [Chinese characters] 13. IV. 2011, leg. C. F. Lee ”.
Paratypes
TAIWAN: 2 ♂♂, 7 ♀♀, 13 ex. ( TARI, EUMJ, NMW), same data as for the holotype; 1 ex. ( TARI), “ Taiwan: Nantou Nanshanchi 25. VII. 2008, leg. W.-T. Liu”; 1 ♂, 1 ex. ( SEHU), “ TAIWAN: NANTOU Nanshanchi 900 28. III. 1982 Col. T. FUJISAWA”; 1 ♂ ( EUMJ), “[ TAIWAN] Wulu Alt. ca. 700 m Haiduan Township Taitung Country ---- [Chinese characters] 17–18. VI. 2011 J. Yamasako leg.”; 1 ♀ ( EUMJ), “( TAIWAN) Hsinhsien~Wulai Taipei Hsien 2. VII, 1970 Y. Hori leg.”.
Description
Male
Body ( Fig. 1A View Fig ) oblong, convex dorsally and ventrally, shiny, densely covered with short and long silver setae. Coloration of body black; legs and antennae paler.
Head densely punctate, slightly convex dorsally. Antennae relatively long, reaching about proximal 1/4 of elytra. Pronotum punctate as in head; PW/PL 1.90–2.11 (2.03). Scutellar shield equilateral triangular, finely punctate, lateral margins straight. Elytra oblong, widest at middle, lateral margins gently arcuate, coarsely and irregularly punctate; space between punctures same as their diameter; adpressed long silver setae forming obvious zigzag, irregular markings; apex obtuse; humeral parts weakly projecting dorsally; EL / EW 1.17–1.37 (1.31), EL / PL 3.00–3.50 (3.26), EW / PW 1.17–1.37 (1.23), TL / EW 1.53–1.78 (1.72). Each claw on foreleg of same size and shape.
Sternite VIII ( Fig. 2D View Fig ) U-shaped, bearing short setae in apical parts. Sternite IX ( Fig. 2E View Fig ) elongate, with long and stout lateral projections. Aedeagus ( Fig. 2 View Fig A–C) stout, straightly curved ventrally in apical part, punctate in apical part of median lobe and parameres; median lobe wide in lateral view, rather pointed at apex; apical emargination of parameres deeply U-shaped, with small projections in inner margins; apices of parameres rounded in ventral view, weakly pointed in lateral view.
Female
Sexual dimorphism indistinct; PW / PL 1.65–2.26 (2.02), EL / EW 1.23–1.34 (1.30), EL / PL 2.65–3.56 (3.25), EW / PW 1.20–1.28 (1.23), TL / EW 1.60–1.79 (1.71). Ovipositor ( Fig. 4B View Fig ) well sclerotized; coxite closely punctuate, pointed at apices, about 1.18 times as long as spiculum ventrale ( Fig. 4A View Fig ); approximate ratio of coxite and baculus (n = 1) 1.0: 3.43.
Measurements
Males (n = 5): TL 3.73–4.05 (3.90) mm, PW 1.80–1.90 (1.86) mm, PL 0.88–1.00 (0.92) mm, EL 2.85– 3.15 (2.98) mm, EW 2.10–2.50 (2.28) mm.
Females (n = 8): TL 3.75–4.20 (4.02) mm, PW 1.80–2.03 (1.90) mm, PL 0.85–1.15 (0.95) mm, EL 2.90–3.20 (3.07) mm, EW 2.20–2.50 (2.35) mm.
Distribution
Only known from the type locality, Taiwan.
Remarks
This species belongs to the testudo species group (sensu Hernando & Ribera 2014). It resembles C. sinensis Hernando & Ribera, 2014 , known from Fujian, China, in the shape of the parameres, which are broadly and deeply emarginated, and differs from it in the following male genital characteristics: apex of the median lobe rather rounded (rather pointed in C. sinensis ); median lobe straightly projecting posteriorly (curved postero-ventrally in C. sinensis ).
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