Temnogastrus javanus (Faust)

Riedel, Alexander, 2024, Taxonomic review of weevils of the tribe Celeuthetini, mainly from Sundaland, Sulawesi and the Lesser Sunda Islands (Coleoptera, Curculionidae, Entiminae), Zootaxa 5464 (1), pp. 1-75 : 68-70

Temnogastrus javanus (Faust)

Temnogastrus javanus (Faust) : Marshall, 1956: 108–109.

Piezonotus javanus Faust, 1896: 138–140 . Type locality: E-Java, Mt. Tengger

Description. Lectotype ( Fig. 39a ). Length. Pronotum plus elytron 9.20 mm. Integument black, with scattered scales; small recumbent ovate whitish-iridescent scales and interspersed subrecumbent brownish bristles; meso- and metathorax laterally with larger white overlapping scales. Head with vertex microreticulate, punctate-rugose, with scattered scales. Rostrum ca. as long as wide (0.98 X), sides subparallel; dorsum in basal half narrow, with furrows along midline. Pronotum ca. as long as wide (1.06 X); dorsally weakly flattened; coarsely rugose-punctate; with sublateral bands of denser, overlapping scales in basal 1/3. Elytra 1.36 X as long as wide; dorsally weakly convex, irregularly punctate-rugose, with transverse wrinkles; striae almost obscured; with sparse small scales, on declivity with some suberect bristles. Abdomen. Ventrites 3–5 with dense pubescence of soft erect hairs. Genitalia. Penis ( Fig. 39b ) with sides of body subparallel, apex rounded. Body containing endophallic sclerite with spiniform apex. Apodeme with tip broken, ca. 2.0 X as long as body of penis. Intraspecific variation. Length. Pronotum plus elytron 7.50–10.10 mm.

Material examined. Type specimens. Male, lectotype by present designation: INDONESIA:“ Java ”, Fruhstorfer ; labels ( Fig. 39c ); condition: right part of right antenna missing; right protarsus missing; formerly pinned through right elytron; genitalia in glycerol in microtube; DNA extraction ARC5047 (sequencing failed) ( SMTD) . Paralectotypes: 1 ex, Java orient, Montes Tengger , 4000, 1890, H. Fruhstorfer; 2 exx, same data as lectotype ( SMTD). Other material examined: INDONESIA, 5 exx, Java ( SMTD); E-Java: 1 ex, ARC3555 (GenBank # LN866372) , Meru Betiri N.P., Sukamade, S08° 32.221´E113° 51.985´to S08° 32.246´E113° 51.603´, 100–350 m, 12-13-IV-2011 ( SMNK); 4 exx, Bremi, Gn. Argopuro, 900–1900 m, 16-VII-2003 ( ARC) .

Notes. Faust (1896) based the original description on an unknown number of specimens; he did not designate a holotype. Four specimens fitting his description were found at SMTD. The original description cites the locality “Montes Tengger” of East Java. One paralectotype bears a printed label with this locality; the other specimens have hand-written labels stating “ Java ”. A lectotype is designated to ensure stability of nomenclature .

Figures

FIGURE 39. Temnogastrus javanus (Faust). Piezonotus javanus Faust, lectotype: (a) Habitus (b) Penis (c) Labels.