Staminodeus dilatatus, Nico M. Franz, 2001

Nico M. Franz, 2001, Description And Phylogeny Of Staminodeus, A New Genus Of Derelomini (Coleoptera: Curculionidae) Associated With Cyclanthaceae, The Coleopterists Bulletin 55 (4), pp. 411-432 : 426-427

publication ID

https://doi.org/ 10.1649/0010-065X(2001)055[0411:DAPOSA]2.0.CO;2

DOI

https://doi.org/10.5281/zenodo.6279376

persistent identifier

https://treatment.plazi.org/id/405B4E03-FFA6-2939-55EC-03A6FDDCFDFC

treatment provided by

Plazi

scientific name

Staminodeus dilatatus
status

new species

Staminodeus dilatatus , new species

Diagnosis. Staminodeus dilatatus is distinguished from S. vectoris by the lower number of larger, subrectate dentes in males, in addition to differing from S. bispinosus and S. forcipis by the glabrate frons. See diagnosis of S. bispinosus for females.

Male. Length 1.4–1.9 mm, width 0.7–0.9 mm, l/ w 1.9 –2.2. Rostrum 0.4–0.5 mm, r/p 0.7–1.0. Frons glabrate. Pronotum l/ w 0.8 –0.9, convex. Prosternum longer than mesosternum. Profemur ( Fig. 3f View Fig. 3 ) slightly arcuate, f/p 0.9–1.1, width similar throughout, ventrally denticulate; protibia ( Fig. 3f View Fig. 3 ) subrectate, t/f 0.9–1.1, anteroventral margin with row of 3–6 apically directed, subrectate dentes, apically mucronate, promucron nearly 2/3 as long as protarsal claw; mesotibia apically mucronate, mesomucron nearly 1/4 as long as mesotarsal claw. Elytron l/ w 1.3 –1.4 (N 15). Median lobe ( Fig. 4f View Fig. 4 ) l/ w 3.0 –3.5 (N 5), laterobasal sclerites apically setose, median sclerite basally projected, apically bifurcate, setose, apical rami undulate, basal 2/3 of median lobe denticulate, aedeagal apodemes shorter than median lobe.

Female. Length 1.5–1.9 mm, width 0.8–1.0 mm, l/ w 1.9 –2.0. Rostrum 0.4–0.6, r/ p 1.0–1.1. Frontal spine nearly 3/5 as long as diameter of eye. Pronotum l/ w 0.8. F/p 1.0–1.2; t/f 0.8–1.0. Elytron l/ w 1.3 –1.4 (N 3). Spermatheca ( Fig. 5f View Fig. 5 ) deflexed nearly 120, apex narrowly projected.

Type Information. Male holotype ‘‘ PANAMA, Bocas del Toro, Corriente Grande, Rio Changuinola / 9 17 30 N, 82 32 41 W, H. Wolda, Feb. 3, 1980 ’’ ( CWOB) GoogleMaps ; female allotype, same label as male holotype with different date ‘‘ Feb. 9, 1980 ’’ ( CWOB); male paratypes, same labels as male holotype with different dates ‘‘ Jan. 20, 1980 ’’ ( CWOB, 1), ‘‘ Feb. 11, 1980 ’’ ( CWOB, 1), ‘‘ Feb. 26, 1980 ’’ ( CWOB, 1), ‘‘ Mar. 13, 1980 ’’ ( CWOB, 1), ‘‘ Mar. 18, 1980 ’’ ( CWOB, 1), ‘‘ Mar. 28, 1980 ’’ ( MIUP, 1); ‘‘ Panama, Bocas del Toro, Cor. Grande, Rio Changuinola , 9 17 30 N, 82 32 41 W, leg. H. Wolda, III­15– 1980 ’’ ( MIUP, 1), same labels as previous specimen with different dates ‘‘ III­ 26–1980 ’’ ( MIUP, 2), ‘‘ III­29–1980 ’’ ( MIUP, 1); female paratypes, same label as male holotype with different date ‘‘ March 4, 1980 ’’ ( CWOB, 1); ‘‘ Panama, Bocas del Toro, Cor. Grande, Rio Changuinola , 9 17 30 N, 82 32 41 W, leg. H. Wolda, IV­24–1980 ’’ (MIUP, 1).

Etymology. Named for the diagnostic character of the male protibia with respect to S. vectoris , i.e., less and larger dentes— dilatatus signifying ‘‘spread out, enlarged, extended’’ ( Brown 1956).

Distribution. Staminodeus dilatatus has been collected on the Carribean slope of Panama, Provincia Bocas del Toro, Río Changuinola ( Fig. 6 View Fig. 6 ).

Natural History. Unknown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Staminodeus