Psychomyia conoidea, Peng & Wang & Sun, 2020

Peng, Lang, Wang, Bei-Xin & Sun, Chang-Hai, 2020, Four new species of Psychomyia (Trichoptera: Psychomyiidae) from China, with re-descriptions of two species, Zootaxa 4860 (2), pp. 227-242 : 230-232

publication ID	https://doi.org/ 10.11646/zootaxa.4860.2.5
publication LSID	lsid:zoobank.org:pub:24F73335-2E27-4353-8760-7D47E0D19F53
DOI	https://doi.org/10.5281/zenodo.4538862
persistent identifier	https://treatment.plazi.org/id/03ED8785-2D01-B866-FF08-F9E8FC7BFEBE
treatment provided by	Plazi
scientific name	Psychomyia conoidea
status	sp. nov.

Treatment

Psychomyia conoidea n. sp.

( Figs 2 View FIGURE 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 View FIGURE 7 ).

Male genitalia: Sternum IX subrectangular in lateral view ( Fig. 2a View FIGURE 2 ), with anterior and posterior margins having shallow concavities; tergum IX (a.s. in Figs 2a, 2b, 2e View FIGURE 2 ) divided into pair of apical sclerites strongly fused with preanal appendages basally; in lateral view (a.s. in Fig. 2a View FIGURE 2 ) each with distal portion produced into 2-branched process, in dorsal view (a.s. in Fig. 2b View FIGURE 2 ) concave mesally as pair of parentheses, in ventral view (a.s. in Fig. 2e View FIGURE 2 ) 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 View FIGURE 2 ) 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 View FIGURE 2 ). Coxopodites indiscernible in lateral and ventral view ( Fig. 2a, 2d View FIGURE 2 ). Harpagones bifid at base, in lateral view each with dorsal branch short and broad, ventral branch slender and curved dorsad (har. in Fig. 2a View FIGURE 2 ); in ventral view, dorsal branch subrectangular with distal end slightly concave, ventral branch bar-shaped (har. in Fig. 2d View FIGURE 2 ). Phallic apparatus ( Fig. 2c View FIGURE 2 ) with endotheca acclivous, basal portion tube-like with pair of processes ( Figs 2c, 2d View FIGURE 2 ) 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). GoogleMaps

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) GoogleMaps . 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.