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-8- 2(1). Abdomen without paratergites . . . . . . . . . . . . . . . . ..
. . . . . . . . . . ..Palaminus Erichson Abdomen with
paratergites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .3 3(2). Mandible with a bidentate tooth in the middle; head and pronotum
densely to moderately punctured. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Pinophilus Eichelbaum Mandible edentate in
the middle; head and pronotum sparsely punctured . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Araeocerus Nordmann Key to the Genera of Trichopseniinae 1. Mesosternal intercoxal process acute. . . . . . . . . . . . . . . .
. . . . .. . . . . Trichopsenius Horn Mesosternal intercoxal
process broad and blunt. . . . . . . . . . . . . . . . . . . Xenistusa LeConte This
key is extracted from that of Pasteels and Kistner (1972). Key to the Genera of Euaesthetinae 1. Abdomen without paratergites . . . . . . . . . . . . . . . . . . . . . . . . .
. .. . Stictocranius LeConte Abdomen with paratergites .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . .2 2(1). Labrum with a row of comb-like teeth anteriorly; head between
the eyes convex; pronotum without fovea near
base; first visible tergite without a carina. . . . Euaesthetus Gravenhorst Labrum without teeth;
head biimpressed between eyes; pronotum with several deep foveae along base; first
visible tergite with a median carina..
. . . . . . . . .....Edaphus Motschulsky This
key is from Blatchley (1910). Key to the Genera of Lispininae 1. Tarsus three-segmented. . . . . . . . . . . . . . . . . . . . . . .
. . . . . Thoracophorus Motschulsky Tarsus five-segmented . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . .2 2(1). Anterior coxae contiguous. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . 3
Anterior coxae separated by a spatulate process of the prosternum. . . . . . . . . . . . . . . .. 5 3(2). Pronotum little narrowed at base. . . . . . .
. . . . . . . . . . . . . . . . . Clavilispinus Bernhauer
Pronotum half as wide at base as at apex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4(3). Head with two longitudinal frontal
impressions; pronotum with two apical denticles . . . . . . . . . . . . . . . . .
. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
. . .Renardia Motschulsky Head without frontal
impressions; pronotum without apical denticles . . . . .Eleusis Laport 5(2). Abdominal sternites without diagonal strigae .. . . . . . . . . . . . . . . .... .Nacaeus Bernhauer Abdominal sternites
with diagonal strigae which are sometimes not completely separate from the
large punctures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . .Lispinus Erichson This key
is taken from the study by Moore and Legner (1974)
which gives full generic descriptions and an illustration of a member of each
genus. The use of the name Renardia Motschulsky in place of Eumalus LeConte is in accordance with the study by Hammond
(1970). Key to the Genera of Osoriinae 1. Anterior tibia much enlarged, strongly spinose. . . . . . . . . . .
. . . . . . . . . . . Osorius Latreille Anterior tibia not
enlarged, not or feebly spinose. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . .. 2 2(1). Last segment of maxillary
palpus not narrower than penultimate; truncate, not dentate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .. . . .Neotrochus Blackwelder |