(Figs 30-37)
Platybletes strirpium Theond, 1952: 419 [Congo].
Platysoma (Platybletes) stirpium :Mazur, 1997: 67.
Redescription (Mazur & Ohara, 2000).
Body oblong-oval (Fig. 30), slightly depressed, black; propygidium and pygidium dark brown; mouth parts, tibiae and tarsi reddish brown. Body length (female, paratype, in mm), PPL, 3.5; PEL, 2.63; APW, 0.8; PPW, 1.7; PL, 0.9; EL, 1.53; EW, 1.83; ProL, 0.43; ProW, 1.0; PyL, 0.38; PTL, 0.55; MSTL, 0.45; MTTL, 0.55.
Antennal club with straight suture (Fig. 33). Ratio in width of pronotum to head 2.52. Front of head flat; surface evenly and finely punctate, the punctures separated by about three times their diameters. Frontal stria of head (Fig. 30) absent; only supraobital stria impressed laterally; orbital stria absent. Labrum feebly convex, the anterior margin emarginate medially. One denticle present on inner margin of mandible. Surface of mandible without carina.
Pronotum (Fig. 31) feebly depressed; marginal stria almost absent but very slightly impressed laterally on basal third of ventral side; outer lateral pronotal stria well impressed, slightly carinate and complete. Surface of pronotum evenly covered with fine punctures the punctures separated by four to seven times their diameter. Antescutellar area without impression.
Epipleura with a complete epipleural marginal stria, the stria sinuate medially. Elytral marginal stria absent. Subhumeral striae absent. Oblique humeral stria slightly impressed on basal third. First to 4th dorsal striae complete, the basal ends of 3rd and 4th feebly bent inwardly; fifth stria shortened on basal third; sutural stria present on medio-apical one-fourth. Surface of elytra sparsely covered with fine punctures which are separated by about eight to ten times their diameter.
Propygidium sparsely covered with large and round punctures, the punctures separated by about half to twice their diameter; interspace among the large punctures intermingled with fine punctures which are separated by about twice their diameter. Punctation of pygidium similar to that of propygidium, but the large punctures more denser and deeper.
Prosternal lobe (Fig. 32) broad and flat, its anterior margin round; marginal stria only impressed latero-basally; surface finely and sparsely punctate. Prosternal process without carinal striae; surface with similar punctation of lobe; posterior margin round. One lateral prosternal stria present and strongly carinate.
Mesosternum transverse; surface feebly excavated each lateral side and sparsely clothed with fine punctures; anterior margin emarginate medially; marginal stria of mesosternum absent. Meso-metasternal suture finely impressed. Intercoxal disk of metasternum flat, and sparsely clothed with fine punctures which are separated by about ten times their diameter. Lateral metasternal stria extending obliquely and posteriorly, the apical end attaining near postero-lateral corner of metasternum. Post-mesocoxal stria absent. Lateral metasternal disk covered with several large punctures on basal half, and sparsely and finely punctate on apical half.
Intercoxal disk of 1st abdominal sternum with similar punctation of intercoxal disk of metasternum; with one complete stria on each side. Lateral disk densely with few longitudinal rugae and large punctures.
Protibia (Fig. 34, 35) with 5 spines on outer margin (not including a spine at apical outer angle), all their bases not strongly denticulate, and a pair of spines on inner angle and 3 small spine present on apical margin (including a spine at apical outer angle). Mesocoxa with few longitudinal impression, without distinct carina. Mesotibia (Fig. 36) with 4 spines on outer margin, and 7 spines present on apical margin. Metatibia (Fig. 37) with 2 spines on outer margin, and 7 spines present on apical margin. Ventral surface of profemur clothed with microscopic rugae and a few longitudinal impression on outer lateral area.
Specimen examined. CONGO. 1 female (Paratype), "I.R.S.A. - Mus. Congo. Kivu. Wlungu, 1750 m, 7-VII-1949, Dr. R. Laurent", "Récolté dans, souches pourries de bananiers", "Paratype (red label)", "Platybletes stirpium n. sp., J. Therond det., 1952" (MNHN: #MO-00-142).
Emmamushi.Home/Histerinae/Platysomtini/Platybletes/References