Atrichadenotecnum trifurcatum (Li, 1993)

Liu, Luxi, Yoshizawa, Kazunori, Li, Fasheng & Liu, Zhiqi, 2013, Atrichadenotecnum multispinosus sp. n. (Psocoptera: Psocidae) from southwestern China, with new synonyms and new combinations from Psocomesites and Clematostigma, Zootaxa 3701 (4), pp. 460-466 : 464

Atrichadenotecnum trifurcatum (Li, 1993) comb. n.

Psocomesites trifurcatum Li, 1993:403 ; 2002: 1455. Psocomesites bimaculatum Li, 1995a: 189 ; 2002: 1457 syn. n. Atrichadenotecnum tayal Yoshizawa, 1998: 203 syn. n. Clematostigma excavata Li, 2002: 1428 syn. n.

Psocomesites edentalum Li, 2005: 102 syn. n.

Material examined. Clematostigma excavata— Holotype ♂: CHINA, Shaanxi Prov., Huashan Reg., 21.viii.1962, Fasheng Li (CAU); Psocomesites trifurcatum— Holotype ♂: CHINA, Guangdong Prov., Chebaling Nature Reserve, 24.iv.1991, Fasheng Li (CAU); Psocomesites bimaculatum— Holotype ♂: CHINA, Zhejiang Prov., Baishanzu Nature Reserve, 24.ix.1993, Hong Wu; Psocomesites edentalum— Holotype ♂: CHINA, Guizhou Prov., Dashahe Nature Reserve, 5.v.2004. Maofa Yang.

Other material examined. CHINA: 1 ♀, Shaanxi Prov., Huashan Reg., 21.viii.1962, Fasheng Li (CAU); 1 ♂, Shanxi Prov., Guandishan Reg., 2.viii.1981, Chikun Yang (CAU); 1 ♀, Shanxi Prov., Guandishan Reg., 5.viii.1981, Fasheng Li (CAU); 1 ♂ 2 ♀, Guangdong Prov., Chebaling Nature Reserve, 24.iv.1991, Fasheng Li (CAU); 2 ♂, 23.iv.1991, same locality and collector; 1 ♂ 1 ♀, 25.iv.1991, same locality and collector; 1 ♂, Zhejiang Prov., Tianmushan Nature Reserve, 5.v.1998, Mingshui Zhao; 4 ♂ 3 ♀, Zhejiang Prov., Baishanzu Nature Reserve, 24.ix.1993, Hong Wu; 6 ♀, 20.xi.1993, same locality and collector; 1 ♀, Fujian Prov., Jianyang Co., Aotou To., 22.x.1974, Fasheng Li (CAU); 1 ♀, Guizhou Prov., Dashahe Nature Reserve, 5.v.2004. Maofa Yang; 1 ♀, Yunnan Prov., Yingjiang Co., Xima To., 5.v.2011, Feiyang Liang (CAU); 1 ♀, Guizhou Prov., Leigongshan Nature Reserve, 14.iv.2005, Yi Tang; 1 ♂, Guizhou Prov., Leigongshan Nature Reserve, 4.vi.2005, Bingzhen Yan; 1 ♂, Fujian Prov., Wuyishan Nature Reserve, 8.vii.2009, Xiushuai Yang.

Remarks. Psocomesites trifurcatum was described by Li (1993) based on specimens from Guangdong, with Psocomesites newly recorded from China. The species was assigned to Psocomesites based mainly on the fore wing markings and venation, but Li pointed out that it differed from other species of this genus by distinct hypandrium characters. Psocomesites bimaculatum was described based on specimens from Zhejiang and Fujian, and P. edentalum was described from Guizhou on one male (accompanied by one female lacking genitalia). Both species were very similar to P. trifurcatum , but were differentiated by male hypandrium characters (Li, 1995a, 2005). Clematostigma excavata was described from Shaanxi and Shanxi, and the assignment was based mainly on the fore wing having a pterostigmal spurvein (Li, 2002). However, during our re-examination on these specimens, the pterostigmal spurvein was not a stable character, occasionally variational between the two wings of a single specimen. This is also true of Psocomesites trifurcatum . Moreover, after re-examining all specimens of the four species, we found the main characters of the wings and genitalia are nearly identical, e.g. the venation and markings in the fore wings, hypandrium and phallosome in male, and pigmented patterns of subgenital plate in female. Also they are mostly similar to another species, Atrichadenotecnum tayal , from Taiwan. Thus, we consider P. bimaculatum , A. tayal , C. excavata and P. edentalum to be junior synonyms of A. trifurcatum .