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-6- 34(33). Mesosternum longitudinally carinate. . . . . . . . . . . . . .
. . . . . . . . . . . . . . .. . . . . . .. 35 Mesosternum not
longitudinally carinate. . . . . . . . . . . . . .. . . . . . . . . . . . . .
. . . . .. 36 35 (34). Sides of pronotum entire. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . Omalium Gravenhorst Sides of pronotum
crenulate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Acrulia Thomson 36(34). Antenna with only last three segments thickened . . . . . . .
. . . . Pycnoglypta Thomson Antenna with last
five to seven segments thickened. . . . . . . . . . . . . . . . . . . . . . . .. 37 37 (36). Third antennomere slender at base; pronotum without ground
sculpture . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Elonium Leach Third antennomere not notably slender at
base; pronotum with ground sculpture of
irregular fine
lines connecting the punctures . . . . . . . . . . . . . . . .Hapalaraea Thomson The genera of the tribe Coryphiini are largely from Hatch (1957) where most of them are illustrated. The
key to the genera of the Anthophagini
is taken from the paper by Moore (1966)
in which a member of each genus is illustrated. The generic name Elonium Leach is used to replace Acrolocha Thomson
following Herman (1970). Some of the
species listed in our catalogues under the name Omalium Gravenhorst do not have the metasternum carinate. New genera
will be required for them. Key to the Genera of Leptotyphlinae 1. Gular sutures united in front . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Gular sutures separate in
front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . 4 2(1). Temple clearly convex; mandible with a strong basal tooth. . . .
. . . . . Neotyphlus Coffait Temple hardly convex;
mandibles without a basal tooth. . . . .. . . . . . . . . . . . . . . . . . .. 3 3 (2). Second tarsal segment less than two times as long as first, the
first two together about as long as the third. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Heterotyphlus Coffait Second tarsal segment
nearly equal in length to second, the first two together clearly shorter than third. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Prototyphlus Coffait 4(1). Parameres absent; aedeagus lying on the right side in repose ..
. . . .. Xenotyphlus Coffait Parameres reduced to
three tiny lobes; aedeagus lying on the left side in repose. . . . ... 5 5(4). Frontal ridge interrupted in the middle.. .. . . . . . . . . . .
. . . . . . . .. .Homeotyphlus Coffait Frontal ridge entire. .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6(5). Median lobe of aedeagus tubular and slender. . . . . . . . . . .
. . . . . . Cainotyphlus Coffait
Median lobe of aedeagus thick in basal part. . . . . . . . . . . . . . . .. . . . Telotyphlus Coffait This key
is slightly modified from Coiffait (1962).
These tiny pale soil inhabiting insects will probably always be difficult to
study. Key to the Genera of Oxytelinae 1. Tarsus clearly five-segmented . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .2 Tarsus seemingly of less
than five segments. . . . . . . . . . . . . . . . . . . . . . . . . . .. . .
. . .. 5 2(1). Tibiae with spines on outer edge. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . 3 Tibiae without spines
on outer edge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .
. . . . 4 3 (2) . Gular sutures divergent before the middle; ungues strongly arcuate. Coprophilus Latreille
Gular sutures very approximate for most of their length; ungues hardly arcuate. . . . . . . .. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .
. Manda Blackwelder |