[Japanese name: Herimon-semaru-hiratamushi] (Fig. 8)
Identification. The examined larvae were collected from a dead branch with adults of P. hiranoi and no other Coleopteran species were collected from this dead branch.
Last instar larva. Head capsule width: 0.65 mm (n= 1).
Body (Fig. 8 A). Translucent, 1 st and 2 nd antennomeres except apex of 2 nd, apices and molae of mandibles and region containing gut darkened.
Head (Fig. 8 A–G). Transversely oblong. Frontal arms U-shaped (Fig. 8 B), elongate; 1 st antennomere comparatively elongate; 2 nd antennomere more than twice longer than 1 st, maximum width at anterior 1 / 4, gradually thickening anteriorly, sensorium around apex of inner margin short and thick; 3 rd antennomere thin, comparatively short but longer than 1 st, a short seta on apex (Fig. 8 C). Mandibles triangular, with three teeth on the apex of right mandible, with three closely spaced teeth and a protuberance on the apex of left mandible; a prostheca on inner margin of anterior 1 / 4, narrowing around apex immediately; molae with many small strong cuticular spines, base of inner margin of left mandible slightly protruded with a few fine cuticular spines (Fig. 8 D, E). Maxilla longitudinally oblong, comparatively narrow, stipes dorsally with many very small spines on middle transverse area, with three long teeth near apex ventrally, inner margin of mala with relatively long setae in a longitudinal row; maxillary palpus with three palpomeres, 1 st palpomere short, 2 nd less than twice longer than 1 st, 3 rd twice longer than 2 nd with a few small spines (Fig. 8 F). Six stemmata on each side (Fig. 8 B).
Thorax and abdomen (Fig. 8 A, I). Shape easily deformed according to posture. Prothorax subquadrate, maximum width around anterior margin; meso- and metathorax transverse, maximum width around in basal half; 1 st and 2 nd abdominal segments short, 3 rd to 8 th subquadrate, 9 th absent, 10 th elongate. A pair of long fine lateral setae and some medium length and short setae on thorax and 3 rd to 8 th segments, a pair of long setae positioned in each maximum width of segment, no long setae on 1 st and 2 nd segments, short sparse pubescence on 10 th. Legs elongate; trochanter triangular, with a few short to medium length setae; femur with a long seta and some short to medium length very sparse setae; tibiotarsus thin, with some short to medium length sparse setae; claw less than 0.5 times as long as tibiotarsus, with two short setae.
Specimens examined. Slide preparation of one specimen.