Euphitrea jungchani Lee, 2025, sp. nov.
Year: 2025
Type: other
Abstract: Euphitrea jungchani sp. nov. Figs 2 C, 5, 7 A – C, 8 Type material. Holotype • ♂ (TARI): Taiwan. Hualien: Juisui (瑞穗), 27.VI.2013, leg. Y.-T. Chung; Paratypes • 1 ♂ (TARI), same data as holotype • 4 ♂ (TARI), same locality, 17.IX.2024, leg. J.-C. Chen; 1 ♂ (NMNS), Fuyuan Forest Rec. Area (富源森林遊樂區), 27.V.1997, leg. C. W. & L. B. O’Brien • 1 ♂, 1 ♀ (TARI), Wanjung (萬榮), 11.VI.2011, leg. M.-H. Tsou • 4 ♀ (TARI), same locality (= Wanrong trail, 萬榮林道), 7.IX.2024, leg. J.-C. Chen • 2 ♂, 3 ♀ (TARI), same but with “ 16.IX.2024 ”. Description. Adults. Length 3.2–3.7 mm, width 1.8–2.1 mm (n = 18). General color dark metallic bronze (Fig. 7 A – C); antennae, legs, and mouthparts yellow. Furrows lateral to vertex deep but short, apically slightly exceeding apical margins of eyes (Fig. 2 C). Antennae (Fig. 8 A) filiform in males, ratios of lengths of antennomeres I – XI 1.0: 0.5: 0.5: 0.5: 0.5: 0.6: 0.7: 0.7: 0.7: 0.7: 0.9; ratios of length to width from antennomeres I – XI 3.0: 2.1: 2.6: 2.4: 2.7: 2.5: 2.7: 2.7: 2.8: 2.6: 4.0; similar in females, ratios of lengths of antennomeres I – XI (Fig. 8 B) 1.0: 0.5: 0.5: 0.4: 0.6: 0.6: 0.7: 0.7: 0.7: 0.6: 0.8; ratios of length to width from antennomeres I – XI 3.0: 2.2: 2.8: 2.3: 2.8: 2.6: 2.6: 2.6: 2.6: 2.3: 3.0. Pronotum 1.5–1.5 × wider than long; disc shining, with dense, coarse punctures, convex; lateral margins rounded; apical margins concave; basal margin medially convex. Elytra 1.3–1.4 × longer than wide; disc with coarse punctures arranged into paired longitudinal lines, with fine punctures between coarse punctures; lateral margins strongly rounded, widest at basal 1 / 3; humeral calli well developed, hind wings normal. Tarsomeres I of front and middle legs slightly swollen and asymmetrical in males (Fig. 8 G); normal in females (Fig. 8 H). Apical margin of abdominal ventrite V in males trilobed, notches shallow; apical margin of abdominal ventrite V broadly rounded in females. Aedeagus (Fig. 8 C, D) wide, ~ 4.4 × longer than wide; parallel-sided, moderately apically narrowed at apical 1 / 7, apex widely rounded; moderately curved in lateral view, and apex curved downwards; tectum sclerotized, apex pointed. Endophallic spiculae reduced. Gonocoxae (Fig. 8 E) curved and connected at base; gonocoxa separated from each other, apically narrow; apex narrowly rounded or truncate; with eight long apical setae. Ventrite VIII (Fig. 8 F) well sclerotized and several small, short setae arranged in a transverse line along apical margin, apical margin truncate but slightly concave at middle, with two or three long setae at sides, spiculum long. Spermathecal receptaculum (Fig. 8 I) slightly swollen; pump wide and curved; sclerotized spermathecal duct short beyond spermathecal gland, base of spermathecal gland enlarged and sclerotized. Diagnosis. Adults of Euphitrea jungchani sp. nov. are similar to those of E. flavicornis, with normal humeral calli on elytra (reduced in E. houjayi sp. nov.), and oval bodies and elytra 1.2–1.3 longer than wide (transversely oval bodies and elytra 1.1 × longer than wide in E. tsoui sp. nov.). In addition to the allopatric distributions of both species, some genital structures are diagnostic, including curved apices of aedeagi in lateral view (Fig. 8 D) and sclerotized tectum (Fig. 8 C) (aedeagi of E. flavicornis straight in lateral view (Fig. 3 D) and membranous tectum (Fig. 3 C)), slightly swollen spermathecal receptaculum (moderately swollen in E. flavicornis), and comparatively wider apices of abdominal ventrite VIII in females (Fig. 8 I) (comparatively narrower apices of abdominal ventrite VIII in females of E. flavicornis, Fig. 3 I). Food plants. Urticaceae: Oreocnide pedunculata (Shirai) Masam. Etymology. This new species is named for Jung-Chan Chen (陳榮章), the first person to collect specimens. Distribution. Eastern Taiwan. Specimens were collected from three localities in Hualien County, allopatric relative to the distribution of E. flavicornis (Fig. 5).
Author: Lee, Chi-Feng
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W7082386687
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