Laoechinophorus unifasciatus Gouverneur, 2016

Yamasako, Junsuke, Vives, Eduard & Liu, Bin, 2021, New species and subspecies of Laoechinophorus from China and Thailand (Coleoptera, Cerambycidae, Lamiinae, Morimopsini), Zootaxa 4941 (1), pp. 91-100 : 92

1. Laoechinophorus unifasciatus Gouverneur, 2016

( Figs 1 , 5 , 9 , 13 )

Laoechinophorus unifasciatus Gouverneur, 2016: 28 .

Type locality. Phou Pan (Mt.), Alt. 1,300–1,900 m, Ban Saleui , Houa Phan, Laos .

Specimens examined. 2³³, Phou Pan (Mt.), Alt. 1,500–1,700 m, Ban Saleui, Houa Phan Prov., Laos, 11.IV.2004, M. Hasegawa leg. ( PCJY); 4³³, same locality but Alt. 1,400–1,500 m, 27.VI–11.V.2007, J. Yamasako leg. ( PCJY) .

Measurements. Male (n = 6): BL = 6.3–8.4 mm, BW = 2.4–3.2 mm. Antennae 1.6–1.7 times as long as body length; relative length of each antennomere, from scape to antennomere XI, as follows: 1.1: 0.3: 1.3: 1.5: 1.1–1.2: 0.9–1.0: 0.8–0.9: 0.7–0.8: 0.7–0.8: 0.7: 0.7. Relative ratio of body parts as follows: LED/LEW = 0.8, LED/GL = 0.8–0.9, PL/PW = 0.9–1.0, PW/EHW = 0.9–1.0, EL/BL = 0.6, EL/EHW = 1.8–2.0.

Male genitalia ( Fig. 13 ). Tegmen in dorsal view rhombic, widest at middle, slightly curved in lateral view; parameres thick in ventral view, slightly narrowed toward roundly projected apex, with several long setae arising on apical 1/4 and concentrated apically, with short setae on basal ridge of ventral side; ring part expanded at middle of tegmen, thence arcuately narrowed basally. Median lobe thick in dorsal view, slightly curved in lateral view; ventral plate distinctly longer than dorsal plate, acutely pointed at apex; dorsal plate with apex rounded; basal strut bifurcated before middle of median lobe. Endophallus subdivided into BPH, MPH (MT+CT, PB), and APH; BPH slightly shorter than median lobe, with well swollen basal swelling on ventral side near CS; MPH with almost fused MT+CT long, 1.5 times as long as median lobe, thick, cylindrical, weakly curved in distal 1/3, thence constricted distally, with LSp unidentate and irregularly arranged lineally in latero-dorsal sides of CT; PB dilated distally, with SSp minute and densely covered almost of PB; APH roundly swollen ventrally, with a single ED distally on dorsal side.

Remarks. The hind wing of this species ( Fig. 9b ) is degenerated but less than in the other congeners, and veined with C, SC, RA with r, MP 1+2 with RP and MS, AA+Cu with CuA and MP 3+4.

Figures

FIGURES 1–4. Male habitus of Laoechinophorus spp. 1, Laoechinophorus unifasciatus; 2, L. thailandicus thailandicus ssp. nov. (holotype); 3, L. thailandicus tsuyukii ssp. nov. (holotype); 4, L. yunnanus sp. nov. (holotype). a, Dorsal view; b, lateral view.

FIGURES 5–8. Male habitus of Laoechinophorus spp. 5, Laoechinophorus unifasciatus; 6, L. thailandicus thailandicus ssp. nov. (holotype); 7, L. thailandicus tsuyukii ssp. nov. (holotype); 8, L. yunnanus sp. nov. (holotype). a, Protuberances on pronotum and tubercles on elytra; b, mesocoxal cavity.

FIGURES 9–12. Male habitus of Laoechinophorus spp. 9, Laoechinophorus unifasciatus; 10, L. thailandicus thailandicus ssp. nov. (holotype); 11, L. thailandicus tsuyukii ssp. nov. (holotype); 12, L. yunnanus sp. nov. (holotype). a, Head in frontal view; b, hind wing. Scale: 1.0 mm for hind wings.

FIGURES 13–16. Male genitalia of Laoechinophorus spp. 13, Laoechinophorus unifasciatus; 14, L. thailandicus thailandicus ssp. nov. (holotype); 15, L. thailandicus tsuyukii ssp. nov. (holotype); 16, L. yunnanus sp. nov. (holotype). a, b, Tegmen; c, parameres; d, h, median lobe; e, apex of median lobe; f, g, median lobe with endophallus. a, d, g, Dorsal view; b, f, h, lateral view; c, e, ventral view. Scale: 1.0 mm. Abbreviations: APH—apical phallomere; BPH—basal phallomere; CT—central trunk; MT—medial tube; PB—pre-apical bulb.