Typhlocolenis jejudoensis Hoshina & Park, 2020

Hoshina, Hideto & Park, Sun-Jae, 2020, New record of the genus Typhlocolenis Hoshina, 2008 (Coleoptera, Leiodidae) from South Korea with a key to the species, ZooKeys 991, pp. 129-136 : 129

publication ID

https://dx.doi.org/10.3897/zookeys.991.55370

publication LSID

lsid:zoobank.org:pub:5C93E895-370A-4998-B47A-3B504ABFC84B

persistent identifier

https://treatment.plazi.org/id/D9611B36-5743-4E22-A247-69B106BF4C5F

taxon LSID

lsid:zoobank.org:act:D9611B36-5743-4E22-A247-69B106BF4C5F

treatment provided by

ZooKeys by Pensoft

scientific name

Typhlocolenis jejudoensis Hoshina & Park
status

sp. nov.

Typhlocolenis jejudoensis Hoshina & Park sp. nov. Figures 2 View Figures 1–6 , 4 View Figures 1–6 , 9 View Figures 7–14 , 10 View Figures 7–14 , 14 View Figures 7–14 , 15 View Figure 15

Type locality.

South Korea, Jejudo Is., Jeju-City, Goepyeongioreum

Material examined.

Holotype, ♂ (NIBR): KOREA, Jejudo Is., Jeju-City, Goepyeongioreum, 13. vi. 2005, S.-I. Lee leg. Paratypes, 3♀ (NIBR): same data as holotype; 1♂ 5♀ (NIBR): Jejudo Is., Jeju-City, Bijarium, 12. vi. 2005, S.-J. Park leg.; 2♂ 2♀ (NIBR): Jejudo Is., Jeju-City, Dongbaekdongsan, 13. vi. 2005, S.-I. Lee leg.; 2 exs. (NBIR): Jejudo Is., Jeju-City, Dongbaekdongsan, 22. v. 2006, S.-I. Lee & Y.-H. Kim leg.

Diagnosis.

The present species very similar to Typhlocolenis sillaensis Hoshina & Park, sp. nov. Body length approximately 1.3-1.4 mm. Dorsum almost concolorous, brown to blackish 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, strongly expanded at about middle of lateral margins, and bearing a small nipple at apex in dorsal view.

Description.

Measurement of holotype. Body length: 1.30 mm; head length: 0.24 mm, width: 0.35 mm; pronotum length: 0.40 mm, width: 0.71 mm; elytron length: 0.73 mm, width: 0.73 mm.

Coloration. Dorsum of body shiny and almost concolorous, brown to blackish 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 1.28-1.42 mm in length, approximately 1.7 times as long as wide (Fig. 2 View Figures 1–6 ).

Head approximately 1.5 times as wide as long, strongly microreticulate, sparsely and very minutely punctate; head length approximately 0.61 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 approximately 1.3 times as long as wide (Fig. 4 View Figures 1–6 ).

Pronotum approximately 1.8 times as wide as long, strongly microreticulate, sparsely and very minutely punctate; pronotum length approximately 0.52 times elytron length; pronotum width almost same as or slightly narrower than elytron width.

Scutellum weakly microreticulate and almost impunctate or sparsely and very minutely punctate.

Elytra almost as long as or slightly longer than wide, 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 pubescence.

Male. Aedeagus generally thick (Figs 9 View Figures 7–14 , 10 View Figures 7–14 ); median lobe of aedeagus strongly expanded at about middle of lateral margins, and bearing a small nipple at apex in dorsal view (Fig. 9 View Figures 7–14 ), slightly, and weakly curved in lateral view (Fig. 10 View Figures 7–14 ); parameres almost symmetrical and bearing several apical setae (Figs 9 View Figures 7–14 , 10 View Figures 7–14 ).

Female. Spermatheca generally C-shaped (Fig. 14 View Figures 7–14 ).

Etymology.

The specific name is derived from the type locality, Jejudo Island.

Distribution.

South Korea (Jejudo Island) (Fig. 15 View Figure 15 ).

Differential diagnosis.

Typhlocolenis jejudoensis sp. nov. is similar to T. sillaensis sp. nov. in appearance but can be distinguished by being strongly expanded at about middle of lateral margins in dorsal view (Fig. 9 View Figures 7–14 ). In contrast, T. sillaensis sp. nov. has a very feebly curved median lobe in dorsal view (Fig. 7 View Figures 7–14 ).

Moreover, T. jejudoensis sp. nov. resembles T. furunoi Hoshina, 2008 in appearance but can be distinguished by median lobe of aedeagus with a small nipple at the apex in dorsal view (Fig. 9 View Figures 7–14 ). In contrast, T. furunoi has a median lobe broadly rounded at the apex (Fig. 12 View Figures 7–14 ).

Natural history.

The life history of Typhlocolenis jejudoensis Hoshina & Park, sp. nov. is not known.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Leiodidae

Genus

Typhlocolenis