Hystatoderes antonkozlovi, Drumont & Komiya & Do & Phan & Constant & Ripaille & -, 2023

Hystatoderes antonkozlovi View in CoL sp. nov.

( Fig. 1, 2A-B, 6A & 6D)

Holotype, ♀ (Fig. 2B): Vietnam, Da Nang City, Ba Na Mt. , 1450 m, V.2015,local collector leg.(will be deposited in NSMT).

Allotype, ♂ (Fig. 2A): same locality as holotype, VI.2014, local collector leg. (will be deposited in RBINS, I.G.: 34.629).

Paratypes

1 ♂, same locality and date as holotype ( ZKC) ;

1 ♂, same locality as holotype but IV.2015 ( ZKC) ;

1 ♂, Vietnam, Quang Nam province, Tay Giang, Axan Mt. , 1300 m, V.2017, local collector leg. ( CRC) ;

1 ♂, same locality but IV.2018, local collector leg. ( ZKC) ;

1 ♂, same locality and date, local collector leg. ( SIC) ;

1 ♂, same locality but III.2020, local collector leg. ( AKC) ;

2 ♂, same locality but IV.2020, local collector leg. ( AKC) ;

2 ♂, same locality but IV.2021, local collector leg. ( AKC) ;

1 ♂, same locality but III.2022, local collector leg. ( AKC) ;

1 ♂, same locality but III.2022, local collector leg. ( NDC) ;

1 ♂, same locality but III.2022, local collector leg. ( ZCDTU) ;

2 ♂, same locality, local collector leg. ( ADC) ;

1 ♂, same locality, local collector leg. ( BSC) ;

1 ♀, Vietnam, Gia Lai province, Kon Chu Rang Nature Reserve , V.2021, local collector leg. ( AKC) ;

1 ♀, Vietnam, Kon Tum province, Ngoc Linh Nature Reserve , 1900 m, III.2022, local collector leg. ( AKC) .

Distribution

Only recorded from China, Laos and Vietnam. In Vietnam, Hystatoderes occurs in several provinces of northern (formerly Tonkin) and central parts and is represented by the species weissi Lameere, 1915 in Ha Giang province, H. vitalisi Lameere, 1917 in Hoa Binh, Lao Cai and Yen Bai provinces, and H.antonkozlovi sp. nov., which exhibits a more southern distribution and occupies Da Nang, Gia Lai, Kon Tum and Quang Nam provinces.

Description

Male (Fig. 2A, 6A)

Dimensions. – Body length: 25 -36 mm (allotype ♂: 30 mm).

Habitus . – Oblong, rather slender in appearance, with long legs and chestnut-brown colour with a slightly satin finish.

Head. – Broader than long, practically hairless except for the presence of disparate hairs behind the eyes, strongly granular, granulation becoming coarse between and in front of the eyes; longitudinal furrow starting between the antennal tubercles and extending behind the vertex; antennal tubercles with deep foveoli and bordered downwards with a groove; clypeus granular with a few scattered golden setae; mandibles strongly punctate, with a slightly curved outer margin in the basal half and then regularly closing