(Figs. 98-100)

Kamimuria manchuriana Wu, 1938:199. Holotype ♂ [lost Wu, 1962] (Yenching University), Yalu River, 150-200 miles from mouth, Manchuria

Perla manchuriana: Illies, 1966:291

Material examined. Neotype ♂ (pinned) from “ Manchuria and Korea, Yalu River, 150-200 miles

from mouth”, [border between Liaoning Province, China and North Korea], May, 1914, A.de C. Sowerbyi (USNM). Additional specimens, 1 pinned ♂ with same data (USNM).

Adult habitus. General color pale brown. Pattern obscured by specimen condition but according to Wu (1938) the holotype had a pale brown head and pronotum and a dark ocellar triangle. Antennae, palpi, cerci and legs were pale brown and the wings were pale with yellow veins.

Male. Forewing length 14 mm. Hemitergal lobes relatively thick, curved and extending forward over tip of tergum 9 (Fig. 98); lobes swollen in basal third in lateral aspect (Fig. 99) and bearing a few sensilla basiconica on the ventroapical margin. Tergum 9 with a median patch of sensilla basiconica. Aedeagus multilobed and downturned near apex (Fig. 100); apex ending in a prominent median and pair of basolateral spiny lobes and additional subapical dorsal and ventral lobes; ventral subapical lobe small rounded and covered with microtrichia on apex, dorsal subapical lobe bare. Most of aedeagal surface unarmed.

Female. Unknown.

Larva. Unknown.

Comments. Wu (1962) indicates most of the type specimens in Chinese collections were destroyed during the war years and this has been confirmed by one of us (IS) during previous visits to Beijing.Some specimens from Wu (1962, 1973) survived in poor condition but those from earlier studies, including collections in Yenching, Shanghi and various university museums were apparently destroyed. Kamimuria manchuriana was described by Wu (1938) from a single male from “…Manchuria, about 150- 200 miles from the mouth of Yalu River; May 1914; A. de C. Sowerby collector” and the holotype male was placed in the “Yenching University collection”. The two males from the USNM are part of the same series but apparently were unknown to Wu; these specimens are in close agreement with Wu’s description, particularly in his reference to the presence of “fine spinules on the ventral surface of the [hemitergal] tip”, and consequently we designate one of them with the aedeagus more fully everted as neotype, in order to clarify the identity of this species.