Indoquedius parallelicollis ( 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 : 123-124

Indoquedius parallelicollis ( Scheerpeltz, 1965)

Figs 1D–E , 7B

Quedius (Indoquedius) parallelicollis Scheerpeltz, 1965: 295 .

Quedius (Indoquedius) sanguinipennis Scheerpeltz, 1965: 296 syn. nov.

Indoquedius bicoloris Smetana, 2014: 184 syn. nov.

Indoquedius qiuae Yan et al. 2017: 108 (synonymized by Smetana 2017b).

Diagnosis

Among members of the Bipunctatus group, Indoquedius parallelicollis can be distinguished by the darkened femora and tibiae (at least outer face) on all legs, the overall pale antennae without any markedly darkened segments, and the moderately coarse and sparse punctation of the elytra. Sympatric Indoquedius bicornutus Zhao & Zhou, 2010 is very similar but can be distinguished by the pale tibiae, coarser and denser elytral punctation. Smetana (2017a) had stated that the elytra of I. parallelicollis (as I. bicoloris ) were either entirely red or entirely dark but among the paratype specimens examined was one specimen with dark elytra and a faint basolateral red spot, similar to what can occur in I. bicornutus . The paratype of I. parallelicollis represents another transitional color pattern with less obvious pale areas of the elytra basally and posteriorly ( Fig. 1D ). The abdominal coloration is also slightly more variable than previously stated ( Smetana 2017a), with the apices of tergites narrowly paler in some specimens, while they are broadly paler in I. bicornutus .

Type material

Holotype

MYANMAR – Kachin State • ♂; “N.E. Burma, Kambaiti; 2000 m; 4/6.1934; Malaise [printed label] / HOLOTYPUS [red handwritten label] / TYPUS Quedius parallelicollis, O. Scheerpeltz [dark red-pink label] / Quedius (Indoquedius) parallelicollis nov. spec., det. Scheerpeltz 1944 [printed label] / 6664 E91 [printed blue label] / parallelicollis Scheerpeltz [large, printed, folded label] / NHRS-JLKB 000021050 ”; NHRS.

Paratype

MYANMAR – Kachin State • 1 ♀; “ N.E. Burma, Kambaiti; 2000 m; 4/6.1934; Malaise [printed label] / Schwedisch Indian-Burma Expedition 1934 [printed label] / ex. coll. Scheerpeltz [printed blue label] / ALLOTYPUS [red handwritten label] / TYPUS Quedius parallelicollis, O. Scheerpeltz [dark red-pink label] / parallelicollis [pink card]”; NHW.

Figures

Fig. 1. Habitus of Indoquedius described by Scheerpeltz (1965). A. I. malaisei, ♂, holotype (NHRS). B. I. micantiventris, ♂, holotype (NHRS). C. I. dispersepunctatus, ♀, holotype (NHRS). D. I. parallelicollis, ♀, paratype (NHW). E. I. sanguinipennis syn. nov. (= I. parallelicollis), ♀, holotype (NHRS). F. I. recticollis, ♀, holotype (NHRS). Scale bars = 1 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.