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
72.
Trigonopterus pseudomanadensis Riedel
sp. n.
Diagnostic description.
Holotype, male (Fig. 72a). Length 2.51 mm. Color of antennae and legs ferruginous; remainder black. Body subovate; in profile dorsally convex; with weak constriction between pronotum and elytron. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with sparse rows of suberect setae; epistome swollen, sparsely punctate. Pronotum with disk densely punctate; interspaces between punctures subglabrous, subequal to or smaller than
punctures'
diameter; median line weakly costate, impunctate. Elytra with striae marked by rows of small punctures; basal margin weakly costate, bordered by transverse row of deeper punctures; stria 8 and 9 along humerus with large, coarse punctures; sutural interval with additional row of small punctures, other intervals subglabrous, with few interspersed punctures. Femora edentate; anterior surface coarsely punctate, each puncture with recumbent yellowish scale. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Metatibia with uncus thick, curved ventroposteriad. Abdominal ventrite 1 and anterior portion of ventrite 2 cavernous, subglabrous, microreticulate; ventrite 2 posteriorly forming rim; ventrite 5 in basal 1/2 with weak median ridge and pair of shallow submedian impressions, subapically densely covered with short erect scales. Penis (Fig. 72b) with sides of body subparallel, in apical 1/4 angularly projecting, ventrally converging to acute apex; without setae; apodemes 2.6
x
as long as body of penis; transfer apparatus complex; ductus ejaculatorius with indistinct bulbus.
Material examined.
Holotype (MZB): ARC2886 (GenBank # MK260300), N-Sulawesi Prov., Kotamobagu, Matalibaru,
00°32.445'N
124°14.185'E
, 956 m, beaten, 20-V-2012.
Distribution.
N-Sulawesi Prov. (Kotamobagu). Elevation ca. 960 m.
Biology.
On foliage in montane forests.
Etymology.
This epithet is a combination of the Greek prefix pseudo- (false) and the name of
T. manadensis
sp. n., a closely related species. A variable adjective.
Notes.
Trigonopterus pseudomanadensis
Riedel, sp. n. was coded as "
Trigonopterus
sp. 399".