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Table 1 in The Oriental genera of Xyloperthini (Coleoptera: Bostrichidae: Bostrichinae), with a new genus and species from Thailand, and a key to the genera
Authors/Creators
- 1. Department of Science Communication, National Pingtung University, No. 4 - 18, Minsheng Rd, Pingtung City, Pingtung County 90049, Taiwan.
- 2. Agricultural Innovation and Management Division, Faculty of Natural Resources, Prince of Songkla University, 15 Karnjanavanich Rd, Hat Yai, Songkhla 90110 Thailand.
Description
Table 1. Comparison of characters of Infrantenna gen. nov. with selected genera of Xyloperthini Lesne, 1921.
| Genus | ||||||
|---|---|---|---|---|---|---|
| Character | Infrantenna gen. nov. | Psicula Lesne, 1941 | Xylion Lesne, 1941 | Xylobosca Lesne, 1901 | Xyloblaptus Lesne, 1901 | Xylopertha Guérin-Méneville, 1845 |
| No. of antennal segments | 10 | 9 | 10 | 10 | 10 | 10 |
| Antennal fossa insertion | Below fronto-clypeal suture. | Above fronto-clypeal suture. | Above fronto-clypeal suture. | On fronto-clypeal suture. | Above fronto-clypeal suture. | Above fronto-clypeal suture. |
| Long hairs on frons | X | Directed upwardly | X | Directed upwardly, long to very long in female, short or absent in male. | Long upwardly at sides, short upward in middle. | Directed upwardly |
| Posterior angles of pronotum | Without lateral carina | Without lateral carina | With lateral carina | Without lateral carina | Without lateral carina | Without lateral carina |
| Pleural pieces | V | X | V | V | X | V |
| Shape of disc of elytral declivity | Male: concave Female: convex | Male: concave Female: convex | Slightly convex | Male: concave Female: convex | Slightly, evenly concave | Male: weakly to strongly concave Female: convex |
| Sculpture of apical margin of declivity | Male: with a small V-shaped emargination at apex. Female: apex of each elytron strongly emarginate, emargination filled by a pair of ventrally- directed processes next to suture. | Male: without an apical emargination. Female: apex of each elytron strongly emarginate, emargination filled by a pair of ventrally- directed processes next to suture. | Both sexes with deep emargination at apex and rised tip. | Male: not emarginate at apex Female: emarginate. | Entire, raised slightly at apex. | Male: with a small V-shaped emargination at apex. Female: apex of each elytron strongly emarginate. |
| Modified ventrites of female abdomen | 5th ventrite strong emarginate in middle posteriorly. | 5th ventrite strong emarginate in middle posteriorly. | Variously modified from 3rd to 5th ventrites, strong emargination at posterior margin of 5th ventrite | 1st ventrite enlarged; 4th and 5th ventrites emarginate in middle posteriorly; 4th ventrite with a pair of spines in some species. | 5th ventrite strong emarginate in middle posteriorly. | 5th ventrite variously modified. |
| Protibia | Wider at apex than in middle, external face broadly grooved. | Widest close to apex, external face flattened. | Widest at apex, external face more or less fl attened | Widest towards middle, without a flat external face | Widest towards middle, without a flat external face | Widest at apex, grooved on external face |
| Geographical distribution | Northern Thailand | India and Thailand | Africa | Australia | USA and Mexico | Mediterranean |
| Character | Calonistes Lesne, 1936 | Infrantenna gen. nov. | Octodesmus Lesne, 1901 | Octomeristes Liu & Beaver, 2016 | Paraxylion Lesne, 1941 | Psicula Lesne, 1941 |
| No. of antennal segments | 10 | 10 | 8 | 8 | 10 | 9 |
| Sensory impressions on club | Without distinct impressions, only areas with denser pores. | Two zones of concentration of sensory pores on 1st and 2nd antennomeres of club. | Dense sensory hairs along anterior margin on 1st and 2nd antennomeres of club. | Dense sensory hairs along anterior margin on 1st and 2nd antennomeres of club. | Dense sensory hairs along anterior margin on 1st and 2nd antennomeres of club. | Without distinct impressions, only areas with denser pores. |
| Clypeus armed on sides | X | X | X | X | X | X |
| Long hairs on frons | X | X | X | V | V | V |
| Lateral carinae of pronotum | X | X | X | X | X | X |
| Pleural pieces | X | V | X | V | V | X |
| Shape of disc of elytral declivity | Concave evenly | Male: concave Female: convex | Slightly concave | Weekly convex | Flatten | Male: concave Female: convex |
| Sculpture of apical margin of declivity | Entire, raised slightly at apex. | Male: with a small V-shaped emargination at apex. Female: apex of each elytron strongly emarginate, emargination filled by a pair of ventrally- directed processes next to suture. | Rised with a tiny V-shaped emargination. | Emarginated | Entire | Male: without an apical emargination. Female: apex of each elytron strongly emarginate, emargination fi lled by a pair of ventrallydirected processes next to suture. |
| Modified ventrites of female abdomen | 4th ventrite extended over 5th as a thin, leaflike, plate, convex ventrally. The middle part of the 5th ventrite,slightly emarginate | 5th ventrite strong emarginate in middle posteriorly. | X | 3rd ventrite projecting over and concealing fourth ventrite, its posterior margin with lobes or teeth. | X | 5th ventrite strong emarginate in middle posteriorly. |
| Protibia | Expanded from base to apex, external face convex. | Wider at apex than in middle, external face broadly grooved. | Wider at apex than in middle,external face flattened. | Wider at apex than in middle, external face flattened. | Expanded from base to apex, external face grooved. | Widest close to apex, external face flattened. |
| Distribution | Malaysia and Thailand | Northern Thailand | India and Burma | India and Thailand | India and Southeast Asia | India and Thailand |
Notes
Published as part of Liu, Lan-Yu & Sittichaya, Wisut, 2022, The Oriental genera of Xyloperthini (Coleoptera: Bostrichidae: Bostrichinae), with a new genus and species from Thailand, and a key to the genera, pp. 49-56 in European Journal of Taxonomy 828 on page 49, DOI: 10.5852/ejt.2022.828.1851, http://zenodo.org/record/6811512
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Additional details
Identifiers
References
- Lesne P. 1921. Classification des coleopteres xylophages de la famille des bostrychides. Compte rendu de l'Association francaise pour l'Avancement de Science 1920: 285 - 289.
- Lesne P. 1941. Sur quelques bostrychides indiens. Annales de la Societe entomologique de France 109: 137 - 152.
- Lesne P. 1901. Revision des coleopteres de la famille des Bostrychides. 4 e Memoire. Bostrychinae sens. strict. II. Les Xylopertha. Annales de la Societe entomologique de France 69: 473 - 639.
- Lesne P. 1936. Diagnoses preliminaires de Lyctides et Bostrychides nouveaux (Col.) de l'Indo et de l'Austro-Malaisie. Bulletin de la Societe entomologique de France 41: 131 - 138.
- Liu L. Y., Beaver R. A. & Sanguansub S. 2016. A new Oriental genus of bostrichid beetle (Coleoptera: Bostrichidae: Xyloperthini), a new synonym and a lectotype designation for Octodesmus episternalis (Lesne, 1901). European Journal of Taxonomy 189: 1 - 12. https: // doi. org / 10.5852 / ejt. 2016.189