Holotype, male (Fig. 74a). Length 2.45 mm. Color of antennae light ferruginous; remainder dark ferruginous. Body subovate; in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum basally with pair of indistinct submedian ridges; at middle with marked, anteriorly hollow protrusion, posteriorly with median tooth and pair of lateral teeth; between protuberance and epistome relatively flat, subglabrous, microreticulate; epistome at middle with dorsoposteriad directed horn, laterally with pair of denticles. Pronotum coarsely punctate-reticulate, each puncture with one clavate suberect scale; with indistinct subapical constriction. Elytra with striae deeply impressed, each with row of suberect clavate scales; intervals subcarinate, microreticulate. Metafemur subapically with stridulatory patch. Abdominal ventrite 5 transversely impressed, with sparse coarse punctures. Penis (Fig. 74b) with sides of body subparallel; apex rounded; apodemes 1.8 × as long as body; transfer apparatus digitiform, confluent with basally sclerotized and swollen ductus ejaculatorius; subapically ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.32–2.45 mm. Horn of rostral epistome slightly shorter or longer. Female unknown.

Holotype (SMNK): ARC1438 (EMBL # LM655552), PHILIPPINES, Palawan, Puerto Princessa region, Sabang, Mt. Bloomfield, N10°11.62', E118°52.35', 500–700 m, 10-XII-2009. Paratypes (SMNK): 2 exx, ARC1437 (EMBL # LM655551), ARC1439 (EMBL # LM655553), same data as holotype.

Palawan (Mt. Bloomfield). Elevation: ca. 500–700 m.

This species is named in honour of Andreas Schulz (Leverkusen, Germany), a successful collector of edaphic arthropods.

Trigonopterus schulzi Riedel, sp. n. was coded as “Trigonopterus sp. 343” by Tänzler et al. (2014).