One hundred and three new species of Trigonopterus weevils from Sulawesi
Author
Riedel, Alexander
Author
Narakusumo, Raden Pramesa
text
ZooKeys
2019
828
1
153
http://dx.doi.org/10.3897/zookeys.828.32200
journal article
http://dx.doi.org/10.3897/zookeys.828.32200
1313-2970-828-1
2A63A74D8B304C83AB747BAF6AF6984E
2A63A74D8B304C83AB747BAF6AF6984E
84.
Trigonopterus satyrus Riedel
sp. n.
Diagnostic description.
Holotype, male (Fig. 84a). Length 2.24 mm. Color of antennae and legs ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally with somewhat flattened median costa and pair of submedian costae; intervening furrows with sparse rows of recumbent setae; apical 1/3 subglabrous, with few punctures and with sparse setae. Pronotum with disk densely punctate with coarse punctures except along impunctate median line; interspaces between punctures subglabrous, microreticulate, subequal to or smaller than
punctures'
diameter. Elytra with striae marked by punctures and fine hairlines; basal margin bordered by transverse row; intervals flat, microreticulate, with few interspersed punctures. Femora edentate; anteroventral ridges simple. Metafemur dorsally with sparse, recumbent, silvery scales; dorsoposterior edge simple; subapically with stridulatory patch. Metatibia ventrally with sparse row of setae. Abdominal ventrites 1-2 concave, subglabrous, sparsely punctate; ventrite 5 at middle with distinct, broadly ovate impression, densely punctate. Penis (Fig. 84b) with sides of body subparallel; apex subtruncate, with median angulate extension, with sparse setae; apodemes 1.8
x
as long as body of penis; transfer apparatus spiniform, directed basad in repose, attached to anchor-shaped supporting sclerite; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.24-2.56 mm. Female rostrum slender, subglabrous, with two submedian rows of punctures, with pair of sublateral furrows.
Material examined.
Holotype (MZB): ARC3055 (EMBL # LN884955), S-Sulawesi Prov., Tanah Toraja, Bittuang, Gn. Karoa,
02°55.270'S
119°40.179'E
to
02°55.032'S
119°40.365'E
, 1800-2000 m, beaten, 10-V-2013. Paratype (SMNK): 1 ex, ARC3056 (GenBank # MK260542), same data as holotype.
Distribution.
S-Sulawesi Prov. (Tanah Toraja). Elevation ca. 1800-2000 m.
Biology.
On foliage in montane forests.
Etymology.
This epithet is the name of Satyrus, a forest-god of the train of Bacchus. It is treated as a noun in apposition.
Notes.
Trigonopterus satyrus
Riedel, sp. n. was coded as "
Trigonopterus
sp. 516".