Ablabesmyia (Ablabesmyia) prorasha Kobayashi et Kubota

Niitsuma, Hiromi & Tang, Hongqu, 2019, Taxonomic review of Ablabesmyia Johannsen (Diptera: Chironomidae: Tanypodinae) from Oriental China, with descriptions of six new species, Zootaxa 4564 (1), pp. 248-270 : 250

Ablabesmyia (Ablabesmyia) prorasha Kobayashi et Kubota

(Figs 1A–C)

Ablabesmyia prorasha Kobayashi et Kubota, 2002: 323 .

Ablabesmyia (Ablabesmyia) prorasha: Niitsuma 2013: 485 .

Material examined. 1 male, CHINA: Guangxi Zhuang Autonomous Prefecture, Baise City, Chengbi River , 26.vii.2015 ; 1 male, Yunnan Province, Chengjiang County, Fuxian Lake , 22.viii.2012 ; 3 males, Yunnan Province, Xishuangbanna Dai Autonomous Prefecture, Jinghong City, Mekong River , 16.i.2014 ; 1 male, Xishuangbanna Dai Autonomous Prefecture, Mengla County, Xishuangbanna Tropical Rainforest National Park , 25.iv.2017 ; 1 male, Guangdong Province, Guangzhou City, Conghua District, Wenquan Town , Shimen National Forest Park, 2.i.2011 ; 1 male, Guangzhou City, Conghua District, Lyutian Town , Yugongdong Reservoir , 19.iii.2014 ; 1 male, as previous except 28.iii.2016; 2 males, Guangzhou City, Conghua District, Lyutian Town , Dongkeng Reservoir , 2.iii.2015 (emerged 8.iii.2015) ; 1 male, Guangzhou City, Zengcheng District, Lan Stream , 10.xii.2017 ; 1 male, Guangdong Province, Shantou City, Nan’ao County, Shen’ao Reservoir , 22.iv.2016 ; 1 male, Hainan Province, Tunchang County, Nanlyu Town, Zhenghong Reservoir , 7.ii.2015 .

Remarks. Niitsuma (2013: 486, fig. 17) mistook the lateral lobe (LL) for the lateral filaments (LF) in the redescription of this species. Actually, the lateral filaments merge with the lateral lobe, and are not visible in the dorsal view. The male is characterized by the three wing spots located at the apices of R 1, R 3 and R 4+5, the weak basolateral bulge on the gonocoxite (Fig. 1A; Kobayashi & Kubota 2002, fig. 14), the robust finger-like aedeagal blade and the well-developed dorsal lobe with an apical brush in the aedeagal complex (Figs 1B, C). Niitsuma (l.c. p. 487) pointed out the similarities between the aedeagal complexes of A. (A.) prorasha and A. (A.) basalis (Walley). In the Chinese material, the male also resembles that of A. (A.) basalis in possessing dark brown abdominal segments VI–VIII, as described by Roback (1971, fig. 608). However, the hypopygium of the latter can be separated by the gonocoxite with a stronger basolateral bulge (cf. Roback 1971, fig. 607; Saether 2011, fig. 8F).

To date, the species has been recorded from Palaearctic Japan and Korea ( Kobayashi & Kubota 2002; Niitsuma 2013). The Chinese collection shows that the distribution of the species extends to Oriental China.