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Note

Key to the Subgenera of Omoglymmius

Ross T. Bell

1
. Clypeal setae present. .......................O. (Orthoglymmius) 1'. Clypeal setae absent. .......................................2

2
(1). Spur of middle tibia straight; female with deepest lateral pits on sternum V; outer carina of pronotum very narrow, 0.33 or less as wide as paramedian grooves. .............................................O. (Carinoglymmius) 2'. Spur of middle tibia curved anteriorly; female with deepest pits on sternum IV; outer carina in most species subequal to paramedian groove (in two species only as wide as in Carinoglymmius. ............................................3

3
(2). Apical stylet of antenna absent. ............................4 3'. Apical stylet present. ......................................9

4
(3). Basal setae present on outer antennal segments. .............5 4'. Basal setae absent. .........................................7

5
(4). Medial margin of temporal lobe with broad emargination between two widely separated medial angles. ...O. (Pyxiglymmius) 5'. Medial margin not emarginate or with one or two shallow emarginations; each temporal lobe with one medial angle or two or three which are close together. ......................6

6
(5). Medial margin with transluccent area (ill defined in O. actae); medial margin with distinct emarginations (except in O. inaequalis). .............................................O. (Laminoglymmius) 6'. Medial margin without translucent area or emarginations; medial angle single. .........................O. (Boreoglymmius)

7
(4). Medial angles with translucent areas. .........O. (Indoglymmius) 7'. Medial angles without translucent areas. ....................8

8
(7). Eye large, its depth over half of the depth of the head; cornea distinctly faceted. .......O. (Omoglymmius sensu stricto) 8'. Eye reduced, its depth less than 0.25 of the depth of the head; cornea not visibly faceted. .............O. (Nitiglymmius)

9
(3). Outer antennal segements with basal setae. ....O. (Hemiglymmius) 9'. Basal setae of antennae absent. ............................10

10
(9). Eye large; cornea visibly facetted; frontal grooves obsolete. ..........................................O. (Navitia) 10'. Eye reduced, less than 0.25 of the depth of the head; cornea not visibly facetted; frontal grooves deep. ...O. (Caeconavitia)
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Ross T. Bell
University of Vermont, Burlington, Vermont, USA

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