RhysodinaRoss T. Bell
The Rhysodina are a medium sized subtribe of Rhysodini with one rather large and diverse genus (Kaveinga) and two very small additional ones. Representatives of the subtribe occur in Australia, the Pacific Islands from New Zealand and New Caledonia west to Mindanao and Sulawesi, and also in the Palaearctic.
A key to the genera of Rhysodina is available here.
The subtribe is easily recognized by the enlargement of the median lobe of the head, which extends posteriorly to the neck region, completely separating the temporal lobes. The minor setae of the antennae form rings on segments V-X, VI-X, or VII-X. The elytral striation is complete, and stria VII is marginal. The middle tibia has a straight external apical process, and it has only one apical spur, which is large and hooked at the tip and either free or fused to the tibia. The hind tibia has only one small, straight spur. The male has a calcar only on the hind tibia.
(A) Dorsal aspect of the head and pronotum of Kaveinga (Kaveinga) occipitalis. (B) Antennal segments IX-XI of Kaveinga (Kaveinga) pignoris. (C) Middle tibia of Kaveinga (Vakeinga) lusca.
Modified from Bell and Bell (1979). Copyright © 1979 Ross T. Bell and Joyce R. Bell.
Relationship of Rhysodina to Other Rhysodines
The rings of minor setae suggest a relationship to Omoglymmiina and Dhysorina.
Bell, R. T. and J. R. Bell. 1978. Rhysodini of the World part I. A new classification of the tribe, and a synopsis of Omoglymmius subgenus Nitiglymmius, new subgenus (Coleoptera: Carabidae or Rhysodidae). Quaestiones Entomologicae 14: 43-88.
Bell, R. T. and J. R. Bell. 1979. Rhysodini of the World part II. Revisions of the smaller genera (Coleoptera: Carabidae or Rhysodidae). Quaestiones Entomologicae 15: 377-446.
Burakowski, B. 1975. Description of larva and pupa of Rhysodes sulcatus (F.) (Coleoptera, Rhysodidae) and notes on the bionomics of this species. Annales Zoologici 32(12)271-287.
Emberson, R. M. 1995. A new species of Kaveinga (Coleoptera: Rhysodidae) and lectotype designations for four species of rhysodids described by Thomas Broun (1880). New Zealand Entomologist 18(0):9-14.
Grandi, G. 1972. Comparative morphology and ethology of insects with a specialized diet, Rhysodes germari Ganglb. Bolletino dell'Istituto di Entomologia dell' Università di Bologna 30:21-47.
About This Page
Ross T. Bell
University of Vermont, Burlington, Vermont, USA
Page copyright © 1999 Ross T. Bell
All Rights Reserved.
- First online 14 December 1999
Citing this page:
Bell, Ross T. 1999. Rhysodina. Version 14 December 1999. http://tolweb.org/Rhysodina/1795/1999.12.14 in The Tree of Life Web Project, http://tolweb.org/