Psychomyia conoidea Peng & Wang & Sun 2020, n. sp.

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).

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.