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Omoglymmius (Pyxiglymmius)

Ross T. Bell taxon links Phylogenetic position of group is uncertainPhylogenetic position of group is uncertainPhylogenetic position of group is uncertainPhylogenetic position of group is uncertain[down<--]Omoglymmius Interpreting the tree
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Tree modified after Bell and Bell 1982
Containing group: Omoglymmius

Introduction

Pyxiglymmius is a moderately sized subgenus with ten species from the Oriental region north to Japan. It is apparently absent from India, and the true locality of one species (O. lederi) is unknown.

Characteristics

The antenna does not have an apical stylet. The basal setae are present on antennomeres VIII-X (in most species also on VI and VII). The clypeal setae are absent. The frontal grooves are deep and complete. Each temporal lobe has two medial angles widely separated by emargination. The medial margin is without a translucent area. The postorbital tubercle is present. The eye is large and distinctly facetted. The gular tubercle is prominent in most species.

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Omoglymmius (Pyxiglymmius) cristatus. (A) Dorsal aspect of head and pronotum. (B) Antennal segment XI. (C) Lateral aspect of head. Modified from Bell and Bell (1982). Copyright © 1982 Ross T. Bell and Joyce R. Bell.

The punctures of the abdominal sterna are scattered. The lateral pits of the female are very prominent on sternum IV. In most species they have a complex structure with a "brace" and with longitudinal striation.

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Click on an image to view larger version & data in a new window

Omoglymmius (Pyxiglymmius) krikkeni. (A) Metasternum and abdomen (right half). (B) Femur and tibia of anterior leg. (C) Middle tibia. (D) Hind tibia. Modified from Bell and Bell (1982). Copyright © 1982 Ross T. Bell and Joyce R. Bell.

The spur of the middle tibia is curved anteriorly. The male has a proximal tooth on the anterior tibia, and a ventral tooth on the anterior femur. The calcars are large and conspicuous. That of the middle tibia is slender and nearly cylindrical. That of the hind tibia is very large, compressed, triangular, and separated from the spur by distinct emargination. The hind tibia of the male is bent in the middle and swollen proximad to the middle.

References

Bell, R. T. and J. R. Bell. 1982. Rhysodini of the World Part III. Revision of Omoglymmius Ganglbauer (Coleoptera: Carabidae or Rhysodidae) and substitutions for preoccupied generic names. Quaestiones Entomologicae 18: 127-259.

Bell, R. T. and J. R. Bell. 1993. Rhysodine beetles (Insecta: Coleoptera: Carabidae or Rhysodidae): New species, new data, and revised keys to Omoglymmius (Subgenera Omoglymmius and Pyxiglimmius). Annals of Carnegie Museum 62(2): 165-185 .

About This Page

Ross T. Bell
University of Vermont, Burlington, Vermont, USA

All Rights Reserved.

Citing this page:

Bell, Ross T. 2000. Omoglymmius (Pyxiglymmius). Version 01 March 2000 (under construction). http://tolweb.org/Omoglymmius_%28Pyxiglymmius%29/2048/2000.03.01 in The Tree of Life Web Project, http://tolweb.org/

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Omoglymmius (Pyxiglymmius)

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