Quedius ( Microsaurus ) piceolineatus Scheerpeltz, 1965

Quedius ( Microsaurus) piceolineatus Scheerpeltz, 1965 View in CoL

Figs 2D View Fig , 6H–J View Fig

Quedius ( Microsaurus) piceolineatus Scheerpeltz, 1965: 284 View in CoL .

Diagnosis

Within the Masasatoi group, Q. piceolineatus can be recognized by the pale yellow-orange body and medial darkening on the sutural area of the elytra ( Fig. 2D View Fig ). It is most similar to Q. masasatoi but the latter species is darker, bicolored reddish to orange-yellow and dark-brown ( Fig. 5F View Fig ), with darkened parts of the abdominal tergites. Additionally, the median lobe in ventral view and paramere of Q. masasatoi ( Fig. 6K, M View Fig ) are distinctly more slender than those of Q. piceolineatus ( Fig. 6H, J View Fig ) and the apex of the median lobe in lateral view is broader in Q. masasatoi ( Fig. 6L View Fig ). Quedius masatakai is entirely dark bodied and easily distinguished from pale Q. piceolineatus .

Type material

Holotype

MYANMAR – Kachin State • ♂; “ N.E. Burma , Kambaiti; 2000 m; 14/5.1934; Malaise [printed label] / HOLOTYPUS [red handwritten label] / TYPUS Quedius piceolineatus, O. Scheerpeltz [dark red-pink label] / Quedius (Microsaurus) piceolineatus nov. spec., det. Scheerpeltz [printed label] / 6673 E91 [blue printed label] / piceolineatus Scheerpeltz [large, printed, folded label] / NHRS-JLKB 000021049 ”; NHRS.

Redescription

Rather similar to Q. masasatoi (description in Smetana 2007; supplemented by Smetana 2012a) and differing in the following: paler areas of the body in general lighter, brownish-yellow, abdominal tergites entirely pale; antennomeres 7–10 slightly less transverse but still wider than long; tergites III–IV with median impunctate area; male tergite X very similar but with slightly and minutely emarginate apex; male sternite IX similar but with expanded middle part more symmetrical and elongate basal part shorter and less elongate; median lobe in ventral view shorter and broader, pair of median teeth slightly farther apart ( Fig. 6H View Fig ), median lobe in lateral view more strongly narrowed at apex ( Fig. 6I View Fig ); paramere shorter and more strongly narrowed to apex, which is more rounded, setae on underside in slightly different arrangement ( Fig. 6J View Fig ).

Female

Unknown.

Distribution

Known only from the type locality in Myanmar ( Kachin).

Bionomics

Nothing is known about the natural history of this species but the holotype has two deutonymphs of a uropodine mite attached to the pronotum ( Fig. 2D View Fig ).

Remarks

Based on the rather similar male genitalia, slightly emarginate tergite VIII and overall habitus ( Fig. 6H– M View Fig ), Q. piceolineatus is probably the sister species of Q. masasatoi .