Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965

Brunke, Adam James, 2023, Review of Quedius (Coleoptera, Staphylinidae) described from the 1934 expedition by R. Malaise to Myanmar, European Journal of Taxonomy 864, pp. 117-145 : 131

Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965

Figs 2C , 5C–E , 7E

Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965: 283 .

Quedius (Microsaurus) cornutus Cai et al., 2015: 571 syn. nov.

Diagnosis

Within the Apicicornis group, Q. rutilipennis can be recognized by a combination of: the sublateral rows of the pronotum reaching posteriad of the large lateral puncture; and the sparsely punctate to impunctate disc of tergites III–IV ( Fig. 5E ).

Type material

Holotype

MYANMAR – Kachin State • ♂; “ N.E. Burma , Kambaiti; 7000 ft.; 9/6.1934; R. Malaise [printed label] / HOLOTYPUS [red handwritten label] / TYPUS Quedius rutilipennis, O. Scheerpeltz [dark red-pink label] / Quedius (Microsaurus) rutilipennis nov. spec., det. Scheerpeltz 1944 [printed label] / 6703 E91 [printed blue label] / NHRS-JLKB 000021053 ”; NHRS.

Paratypes

MYANMAR – Kachin State • 1 ♀; “ N.E. Burma , Kambaiti; 2000 m; 7–9/6.1934; Malaise [printed label] / Schwedisch Indian-Burma Expedition 1934 [printed label] / ex. coll. Scheerpeltz [printed blue label] / ALLOTYPUS [red handwritten label] / TYPUS Quedius rutilipennis, O. Scheerpeltz [dark red-pink label] / rutilipennis [orange card]”; NHW • 1 ♀; “[female symbol on card] / N.E. Burma , Kambaiti; 7000 ft.; 9/6.1934; R. Malaise [printed label] / Schwedisch Indian-Burma Expedition 1934 [printed label] / ex. coll. Scheerpeltz [printed blue label] / Cotypus Quedius rutilipennis O. Scheerpeltz [pink label]”; NMW.

Redescription

This species was recently described (as Q. cornutus ) by Cai et al. (2015) with sufficient detail. That description is supplemented here with a complete habitus illustration ( Fig. 2C ) and some additional images of the antennae, forebody and abdomen ( Fig. 5C–E ). The female was previously undescribed and so tergite X is illustrated in Fig. 7E .

Distribution

The species is known from Myanmar (Kachin) and an adjacent area of Yunnan, China.

Remarks

The type series includes the male holotype and two female paratypes. The male was dissected to reveal an aedeagus identical to Q. cornutus Cai, Yan-Peng , Zong-Yi Zhao & Hong-Zhang Zhou 2015. The type locality of Q. cornutus is located in the narrow part of Yunnan west of the Salween River (Cai et al. 2015) and not far from the type locality of Q. rutilipennis in Myanmar. Therefore Q. cornutus syn. nov., becomes a junior synonym of Q. rutilipennis .

Figures

Fig. 2. A–E. Dorsal habitus. A. Malaisdius ruficeps (Scheerpeltz, 1965), ♂, paratype (NHW). B. Malaisdius smetanai gen. et. sp. nov., ♂, holotype (NME). C. Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965, ♂, holotype (NHRS). D. Q. (M.) piceolineatus Scheerpeltz, 1965, ♂ holotype (NHRS). E. Q. (M.) impressithorax Scheerpeltz, 1965, ♀ holotype (NHRS). F. Forebody of Q. (M.) impressithorax Scheerpeltz, 1965. Abbreviation: Pf = posterior frontal puncture. Scale bars = 1 mm.

Fig. 5. A. Malaisdius ruficeps (Scheerpeltz, 1965), dorsal abdomen. B. M. smetanai gen. et sp. nov., dorsal abdomen. C–E. Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965. C. Antenna. D. Pronotum (white arrow: marginal punctures removed from marginal bead; black arrow: anterior angles with marginal bead entirely visible in dorsal view). E. Elytra and basal abdomen. F. Q. (M.) masasatoi Smetana, 2007, pronotum (arrows indicating punctures of the dorsal row). Abbreviation: Pf = posterior frontal puncture. Scale bars: A–B, D–E = 1 mm; C, F = 0.5 mm.

Fig. 7. Female tergite X. A. Indoquedius dispersepunctatus (Scheerpeltz, 1965). B. I. parallelicollis (Scheerpeltz, 1965). C. I. recticollis (Scheerpeltz, 1965). D. Malaisdius ruficeps (Scheerpeltz, 1965). E. Quedius (Microsaurus) rutilipennis Scheerpeltz, 1965. F. Q. (M.) impressithorax Scheerpeltz, 1965. Scale bars = 0.1 mm.