Neotriplax minima, Ren, Jing Li Guo-Dong & Dong, Jian-Zhen, 2006

Ren, Jing Li Guo-Dong & Dong, Jian-Zhen, 2006, One new species of the genus Neotriplax (Coleoptera: Erotylidae) from China, Zootaxa 1333, pp. 63-67 : 64-66

publication ID

https://doi.org/ 10.5281/zenodo.174267

DOI

https://doi.org/10.5281/zenodo.6258135

persistent identifier

https://treatment.plazi.org/id/03C287F5-FFAE-FF9B-FEE4-FC4BFC22F9B0

treatment provided by

Plazi

scientific name

Neotriplax minima
status

sp. nov.

Neotriplax minima new species

( Figs 1–20 View FIGURES 1 – 14 View FIGURES 15 – 20 )

Type material. Holotype male, CHINA: Yunnan Province, Lushui County, 25°58' N 98°49' E, 11 May 2004, X.J. Yang & Y.S. Liu leg. (Hebei University). Paratypes: one male and three females, same data as holotype.

Diagnosis. This new species is similar to Neotriplax arisana Miwa but differs in having head black with only basal area brown, punctures on head sparse, and posterior border of pronotum strongly narrowed backwards, with a narrow lobe in the middle.

Description. Body oval, convex in lateral view; general color brown to reddish brown and shining; head (except the basal area brown) and legs black.

Head ( Fig. 1 View FIGURES 1 – 14 ) sparsely punctured, with a pair of stridulatory files ( Figs 17–18 View FIGURES 15 – 20 ) on the vertex. Clypeus strongly narrowed anteriorly, with anterior border feebly emarginate and finely margined throughout, with a fovea on each side of the base. Compound eye ( Fig. 16 View FIGURES 15 – 20 ) prominent laterally; joints of ommatidia covered with sparse hairs. Antennae ( Fig. 8 View FIGURES 1 – 14 ) with brown hairs; 3rd segment slightly curved and flatted, about 2.14 times as long as 4th; 7th slightly wider than 6th; 8th obtuse triangular; 9th cupulate; 10th crescented; 11th almost oval, slightly constricted in middle, with three kinds of sense organs: sensilla trichodea, sensilla cheatica and sensilla styloconica ( Fig. 15 View FIGURES 15 – 20 ); relative length of 2nd to 11th segments: 3.0: 7.5: 3.5: 4.0: 3.0: 4.0: 3.0: 8.0: 7.0: 6.0. Terminal segment of maxillary palpus ( Fig. 9 View FIGURES 1 – 14 ) nearly triangular (terminal segment of maxillary palpus height/terminal segment of maxillary palpus width ratio = 0.45–0.50; mean = 0.47), with two kinds of sense organs ( Figs 19–20 View FIGURES 15 – 20 ). Elevated part of mentum ( Fig. 7 View FIGURES 1 – 14 ) pentagonal, pointed apically, with fine and close punctures.

Pronotum ( Fig. 2 View FIGURES 1 – 14 ) transverse (pronotum length/pronotum width ratio = 0.48–0.54 (mean = 0.50), widest at base; sides gently rounded, gradually narrowing to apex; punctures sparser than those on head; anterior and posterior angles obtuse. Prosternum ( Fig. 3 View FIGURES 1 – 14 ) strongly and sparsely punctured; prosternal process wider than long, gradually dilated apically; lateral carinae sinuate.

Scutellum cordiform, finely and sparsely punctured.

Elytra (elytra length/elytra width ratio = 2.25–2.43; mean = 2.35) widest at middle; sides weakly arcuate from base to middle, then sharply narrowed toward apex; each elytron with 8 rows of seriate punctures; intervals between rows finely punctured. Wings ( Fig. 6 View FIGURES 1 – 14 ) well developed; radial cell triangular; medial fleck tadpole-shaped.

Mesoventrite ( Fig. 4 View FIGURES 1 – 14 ) transverse, strongly and sparely punctured. Metaventrite ( Fig. 5 View FIGURES 1 – 14 ) finely and sparsely punctured in the median area, strongly and closely punctured on the lateral areas, with a longitudinal depression medially.

Male genitalia ( Figs 10–12 View FIGURES 1 – 14 ) slender; median lobe strongly narrowing from basal three fourths to apex and bluntly rounded at apex in lateral view; median strut short, nearly 0.8 times as long as media lobe. Female genitalia as in Figs 13 and 14 View FIGURES 1 – 14 .

Body length: 3.0– 3.5 mm; width: 2.1–2.2 mm.

Distribution. China: Yunnan.

Etymology. This name is derived from the small body.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Erotylidae

Genus

Neotriplax

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