Stenoscelis Wollaston 1861
Creators: name: Inoue, Shûgo
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Stenoscelis

description: Key to Japanese species of Stenoscelis
1 Upper margin of scrobe directed to middle of eye (Figs 2, 4, 6, 18, 20, 22 & 24)................................... 2
- Upper margin of scrobe directed to lower margin of eye (Figs 41, 43, 45 & 47).................................... 6
2 Epistome with a pair of tufts of long setae basally (Fig. 68); apex of elytra conjointly acuminate (Fig. 78)..... S. acutipennis
- Epistome with six long setae basally (Figs 69–77); apex of elytra conjointly rounded (Figs 79–81 & 83) or separately produced in a small process (Fig. 82).............................................................................. 3
3 Elytral intervals on declivity with setae as long as or shorter than granules and arranged irregularly in two or three rows (Fig. 79).................................................................................... S. brevithoracicus
- Elytral intervals on declivity with setae longer than granules and each arranged behind a granule in a single row (Figs 80–82) ................................................................................................... 4
4 Rostrum dorsally concave in male, convex in female (Figs 18 & 20); striae of elytra on declivity reticulate, without punctures (Fig. 80)................................................................................... S. cavirostris
- Rostrum dorsally convex in both sex (Figs 22 & 24); striae of elytra on declivity not reticulate, with a row of punctures (Figs 81 & 82)............................................................................................ 5
5 Apex of elytra conjointly rounded (Fig. 81), obtusely angulated in lateral view (Fig. 22); aedeagal body approximately 1.4 times as long as wide, 1.0 times as long as apodeme (Figs 30 & 31); spermatheca with collum developed and ramus not developed (Fig. 34)................................................................................. S. longisetosus
- Apex of elytra separately produced in a small process (Fig. 82), acutely angulated in lateral view (Fig. 24); aedeagal body approximately 1.7 times as long as wide, 1.4 times as long as apodeme (Figs 35 & 36); spermatheca with collum and ramus developed (Fig. 39)............................................................................... S. aceri
6 The subapical sclerotized structure of endophallus with a large spatulate projection on dorsal side. (Figs 48 & 49)...................................................................................................... S. matobai
- The subapical sclerotized structure of endophallus with a pair of projections on dorsal side (Figs 53, 54, 58, 59, 63 & 64)... 7
7 The subapical sclerotized structure of endophallus reniform (Fig. 53)................................... S. reniformis
- The subapical sclerotized structure of endophallus ovate (Figs 58 & 63).......................................... 8
8 The subapical sclerotized structure of endophallus without separated part basally; the pair of projection on dorsal side short (Figs 58 & 59)............................................................................ S. gracilitarsis
The subapical sclerotized structure of endophallus with a separated part basally; the pair of projection on dorsal side long (Figs 63 & 64)............................................................................... S. ogasawarensis
description: Published as part of Inoue, Shûgo, 2025, Revision of the genus Stenoscelis Wollaston (Coleoptera: Curculionidae: Cossoninae) of Japan, pp. 462-490 in Zootaxa 5583 (3) on page 487, DOI: 10.11646/zootaxa.5583.3.3, http://zenodo.org/record/14804799