Typhlocolenis sillaensis Hoshina & Park, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.991.55370 |
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publication LSID |
lsid:zoobank.org:pub:5C93E895-370A-4998-B47A-3B504ABFC84B |
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persistent identifier |
https://treatment.plazi.org/id/12717A0F-5DAB-4B5C-AE91-0625B08AC153 |
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taxon LSID |
lsid:zoobank.org:act:12717A0F-5DAB-4B5C-AE91-0625B08AC153 |
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treatment provided by |
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scientific name |
Typhlocolenis sillaensis Hoshina & Park |
| status |
sp. nov. |
Typhlocolenis sillaensis Hoshina & Park sp. nov. Figures 1 View Figures 1–6 , 3 View Figures 1–6 , 6 View Figures 1–6 , 7-8 View Figures 7–14 , 13 View Figures 7–14 , 15 View Figure 15
Type locality.
South Korea, Gangwon-Prov., Pyeongchang-Gun, Mt. Odaesan.
Material examined.
Holotype, ♂ (NIBR): KOREA, Gangwon-Prov. Pyeongchang-Gun, Mt. Odaesan, 22. vii. 2004, S.-J. Park leg. Paratypes, 2♂ 1♀ (NIBR): 16. v. 2005, same data as holotype except for the date; 1♂ (NIBR): 21. ix. 2006, same data as holotype except for the date.
Diagnosis.
Body length approximately 1.3-1.4 mm. Dorsum almost concolorous, brown, or dark brown. Head and pronotum strongly microreticulate, sparsely and very minutely punctate. Elytra almost smooth, sparsely and very minutely punctate, and densely and transversely strigose. The median lobe of aedeagus relatively thick and feebly curved at lateral margins and bearing a relatively small nipple at apex in dorsal view.
Description.
Measurement of holotype. Body length: 1.39 mm; head length: 0.26 mm, width: 0.39 mm; pronotum length: 0.45 mm, width: 0.83 mm; elytron length: 0.81 mm, width: 0.83 mm.
Coloration. Dorsum of body shiny and almost concolorous, brown or dark brown; antennae light brown; mesoventrite brown or dark reddish brown with a black median carina; metaventrite brown or dark reddish brown with a dark brown median carina; abdominal ventrites brown or dark reddish brown; legs brown with light brown tarsi.
Body 1.31-1.39 mm in length, approximately 1.8 times as long as wide (Fig. 1 View Figures 1–6 ).
Head approximately 1.6 times as wide as long, strongly microreticulate, sparsely and very minutely punctate; head length approximately 0.54 times pronotum length; head width approximately 0.48 times pronotum width; antennomeres 1-4 and 11 longer than wide; antennomere 5-7 almost as long as wide; other antennomeres wider than long; antennomere 11 approximately1.3 times as long as wide (Fig. 3 View Figures 1–6 ).
Pronotum approximately 1.8 times as wide as long, strongly microreticulate, sparsely and very minutely punctate; pronotum length approximately 0.58 times elytron length; pronotum width almost same as elytron width.
Scutellum weakly microreticulate and almost impunctate or sparsely and very minutely punctate.
Elytra almost as long as wide or slightly wider than long, widest at approximately basal 1/6, almost smooth, sparsely and very minutely punctate, and densely and transversely strigose (Fig. 6 View Figures 1–6 ).
Legs show no sexual dimorphism on protarsi and normal shape for Typhlocolenis .
Meso- and metaventrites strongly microreticulate, almost impunctate, and glabrous; abdominal ventrites strongly microreticulate, almost impunctate, and bearing sparse and very fine pubescences.
Male. Aedeagus generally thick (Figs 7 View Figures 7–14 , 8 View Figures 7–14 ); median lobe of aedeagus feebly curved at lateral margins and bearing a relatively small nipple at apex in dorsal view (Fig. 7 View Figures 7–14 ) and weakly curved in lateral view (Fig. 8 View Figures 7–14 ); parameres almost symmetrical and bearing several apical setae (Figs 7 View Figures 7–14 , 8 View Figures 7–14 ).
Female. Spermatheca generally crescent shaped (Fig. 13 View Figures 7–14 ).
Etymology.
The specific name is derived from an ancient Korean kingdom, Silla, where is the type locality of the present new species.
Distribution.
South Korea (Gangwon-Prov.) (Fig. 15 View Figure 15 ).
Differential diagnosis.
The genus Typhlocolenis is here first recorded in South Korea and is the only blind genus in the Korean Pseudoliodini . Therefore, T. sillaensis sp. nov. can be easily separated from Dermatohomoeus Hlisnikovský, 1963 and Pseudcolenis Reitter, 1885 of the tribe by the lack of eyes. Moreover, T. sillaensis sp. nov. can be distinguished from Dermatohomoeus and Pseudcolenis by having a metaventrite with a distinct median carina. In contrast, Dermatohomoeus and Pseudcolenis have no median carinae on the metaventrites.
Typhlocolenis sillaensis sp. nov. is similar to T. fusca Hoshina, 2008 in appearance but can be distinguished by the relatively thick median lobe of aedeagus (Fig. 7 View Figures 7–14 ) that has a relatively small nipple at the apex in dorsal view (Fig. 7 View Figures 7–14 ). In contrast, T. fusca has a relatively slender median lobe that has a relatively large nipple at the apex in dorsal view (Fig. 11 View Figures 7–14 ).
Natural history.
The life history of Typhlocolenis sillaensis Hoshina & Park, sp. nov. is not known.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.