Four new species of Psychomyia (Trichoptera: Psychomyiidae) from China, with re-descriptions of two species Author Peng, Lang 0000-0002-5644-8248 Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China & 2018102092 @ njau. edu. cn; https: // orcid. org / 0000 - 0002 - 5644 - 8248 2018102092@njau.edu.cn Author Wang, Bei-Xin 0000-0002-5253-8799 Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China & wangbeixin @ njau. edu. cn; https: // orcid. org / 0000 - 0002 - 5253 - 8799 wangbeixin@njau.edu.cn Author Sun, Chang-Hai Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China text Zootaxa 2020 2020-10-12 4860 2 227 242 journal article 8219 10.11646/zootaxa.4860.2.5 64832a0a-3db6-4782-93f8-3b3f58f328d9 1175-5326 4413725 24F73335-2E27-4353-8760-7D47E0D19F53 Psychomyia conoidea n. sp. ( Figs 2 a–2e) Description: Length of each forewing 3.4–3.6 mm (n = 5). Specimens in alcohol with compound eyes black, body brown except ventral surface light brown. Forewings with folks II, III, IV, and V present, crossveins r , s , and r-m more or less zigzagged; hind wings with R 1 atrophied but discernible, with forks II, III, and V present ( Fig. 7b ). Male genitalia: Sternum IX subrectangular in lateral view ( Fig. 2a ), with anterior and posterior margins having shallow concavities; tergum IX (a.s. in Figs 2a, 2b, 2e ) divided into pair of apical sclerites strongly fused with preanal appendages basally; in lateral view (a.s. in Fig. 2a ) each with distal portion produced into 2-branched process, in dorsal view (a.s. in Fig. 2b ) concave mesally as pair of parentheses, in ventral view (a.s. in Fig. 2e ) each with deep concavity at mid-length, forming slender basal pinecone-like process and large apical process serrate mesally. Preanal appendages setose, in lateral view (pre.app. in Fig. 2a ) each with apicodorsal angle produced into subtriangular process; in dorsal view with distal ends bending mesad apically around tergum IX apical sclerites (pre.app. in Fig. 2b ). Coxopodites indiscernible in lateral and ventral view ( Fig. 2a, 2d ). Harpagones bifid at base, in lateral view each with dorsal branch short and broad, ventral branch slender and curved dorsad (har. in Fig. 2a ); in ventral view, dorsal branch subrectangular with distal end slightly concave, ventral branch bar-shaped (har. in Fig. 2d ). Phallic apparatus ( Fig. 2c ) with endotheca acclivous, basal portion tube-like with pair of processes ( Figs 2c, 2d ) and two small processes at top, distal portion produced into elongate-triangular process. Diagnosis: This species belongs to Schmid’s P . pusilla Species Group and resembles Psychomyia tiani Schmid 1997 in the phallic apparatus. The differences are as follows: (1) the preanal appendages in P. conoidea n. sp. with height nearly equal length, rather than length much greater than height as in P. tiani ; (2) in lateral view, preanal appendages of P. conoidea n. sp. with apices sharp, rather than rounded as in P. tiani ; (3) in lateral view, harpagones of P. conoidea n. sp. each with dorsal branch shorter than ventral branch, rather than of equal length as in P. tiani . Holotype : Male, P. R . China , Zhe-jiang Province : De-qing County , Mo-gan-shan, 30°35′15″N , 119°50′2″E , alt. 134 m , 24 May 2017 , leg. Y. Hu & C. Sun ( NJAU ). FIGURE 2. Male genitalia of Psychomyia conoidea n. sp. 2a , left lateral; 2b , tergum IX and preanal appendages, dorsal; 2c , phallus, left lateral; 2d , inferior appendages (paired), ventral; 2e , tergum IX and preanal appendages (paired), ventral. Abbreviations: a. s. = apical sclerite (paired); b. p. = basal process; end. = endotheca; har. = harpago (paired); pha. = phallotheca; pre. app. = preanal appendages (paired). Scale bar refers to all figures 2a–2e. Paratypes : 4 males , same data as holotype; P. R . China , Zhe-jiang Province : 1 male , Lin-an County , Da-shan , 30°24′42”N , 119°36′44″E , alt. 577 m , 8 June 2018 , leg. Y. Wang & Y. Hu (all NJAU ) . Distribution : China (Zhe-jiang). Etymology : The Latin adjective conoideus , - a , - um means “conical”, referring to the conical setose processes at the inner bases of the apical sclerites of tergum IX when viewed dorsally.