Microdytes jeenthongi Okada & Wewalka, 2023
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publication ID |
https://dx.doi.org/10.3897/zookeys.1159.99218 |
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publication LSID |
lsid:zoobank.org:pub:CD97DD12-0549-412F-9765-08D8DE21605B |
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persistent identifier |
https://treatment.plazi.org/id/D3B3AE52-D18B-49E8-AAB7-E0DC2F5E6CD1 |
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taxon LSID |
lsid:zoobank.org:act:D3B3AE52-D18B-49E8-AAB7-E0DC2F5E6CD1 |
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treatment provided by |
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scientific name |
Microdytes jeenthongi Okada & Wewalka |
| status |
sp. nov. |
Microdytes jeenthongi Okada & Wewalka sp. nov.
Figs 3 View Figures 2–6 , 8 View Figures 7–11 , 13 View Figures 12–14 , 39E View Figures 38–40
Type locality.
Thailand, Chiang Mai Province, Mae Chaem District, Tha Pha, 18°30'46"N, 98°25'25"E, alt. 720 m.
Type material.
Holotype (THNHM): ♂, "THAI: Chiang Mai Mae Chaem Dist., Tha Pha St. 166 (alt. 720 m) 15.VIII.2020" [printed white label] \ "HOLOTYPE Microdytes jeenthongi sp. nov. Okada & Wewalka 2022 [printed red label]". Paratypes (3 exs.): 2♂♂, same data as the holotype (CGW, NMW); 1♂, same locality, 4.VII.2020, R Okada leg (CRO). All paratypes are provided with printed red paratype labels.
Diagnosis.
Microdytes jeenthongi sp. nov. resembles M. shunichii Satô, 1995 (Fig. 36 View Figures 18–37 ) and M. zetteli Wewalka, 1997 (Fig. 37 View Figures 18–37 ) in habitus, coloration and very finely punctured metasternum and metacoxae. From M. shunichii it differs by the reddish brown pronotum and very finely and sparsely punctured elytra. From M. zetteli it can be distinguished by larger size, less finely and sparsely punctured head.
Description.
Measurements. TL = 1.77-1.82 mm (1.79 mm), TL-H = 1.23-1.26 mm (1.26 mm), MW = 1.18-1.23 mm (1.23 mm), TL/MW = 1.46-1.50 (1.49). Body regularly oval, moderately convex (Fig. 3 View Figures 2–6 ).
Coloration. Head reddish brown. Pronotum reddish brown, along the anterior margin narrowly and along the posterior margin more widely dark brown, especially medially. Elytron dark brown with a distinct transverse band at the base not reaching suture, continuing along the margin to a post-median transverse band and a triangular spot near the apex, and a small round post-median spot near suture (Figs 3 View Figures 2–6 , 8 View Figures 7–11 ). Ventral surface of head and prothorax yellowish brown; thorax, abdominal ventrites and elytral epipleuron reddish brown to dark brown. Legs, antennae and palpi yellowish brown.
Sculpture and structure. Head finely and sparsely, slightly irregularly punctured; anterior forth finely microreticulate; clypeus not bordered. Pronotum punctured moderately irregularly, finely, and sparsely, very coarsely along posterior margin; without microreticulation; lateral margins finely bordered, regularly rounded. Elytron very sparsely and finely punctured, progressively finer and sparser towards lateral margin; one longitudinal row of punctures distinct; highly polished and shining; without microreticulation. Ventral surface: metasternum and metacoxae very finely, sparsely, and irregularly punctured; abdomen almost without punctures; without microreticulation.
Male. The two parts of the median lobe expanded and pointed at apex forming the unique arrowhead shape in ventral aspect (Fig. 13A View Figures 12–14 ); almost straight and slightly expanded downwards at apex in lateral aspect (Fig. 13B View Figures 12–14 ). Parameres moderate triangular in lateral aspect (Figs 13C, D View Figures 12–14 ).
Female. Unknown.
Variation.
Variation of markings is shown in Fig. 8 View Figures 7–11 .
Etymology.
This species is dedicated to Tadsanai Jeenthong, collection manager of National Science Museum, Thailand. The species epithet is a name in the genitive singular.
Habitat.
This species was collected in a small, shallow stream with gravel bottom flowing through a small valley. In this stream, specimens were collected from a restricted point where tree roots were exposed along the river bottom (Fig. 46 View Figures 45–48 ).
Distribution.
Thailand: Chiang Mai Province.
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.