Axinidris, Weber, 1941
publication ID |
21291 |
DOI |
https://doi.org/10.5281/zenodo.8319986 |
persistent identifier |
https://treatment.plazi.org/id/30F34EA0-6DC1-0FA8-85D1-E94A41525087 |
treatment provided by |
Christiana |
scientific name |
Axinidris |
status |
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KEY TO AXINIDRIS View in CoL View at ENA HNS WORKERS
1 Propodeal ridge cariniform or absent; pronotal dorsum evenly rounded at sides ............ 2
-- Propodeal ridge compressed and strongly elevated, axiniform (Fig. 11); pronotal dorsum submarginate at side (Sudan; Kenya) .......................................................... acholli Weber HNS
2 (1) Pronotum and antennal scape shaft without erect hairs; gastral terga usually without erect hairs ................................................................................................................................. 3
-- Pronotum with at least two erect hairs (caution: one or both, if only two are normally present, may be broken off or lying on the surface); antennal scape shaft and gastral terga with or without erect hairs ............................................................................................. 10
3 (2) Medial carina present at least on posterior half of dorsal face & at least slightly elevated at summit of declivity; propodeal spines various, but often more elongate and with surface between them concave in dorsal view ............................................................................. 4
-- Medial carina absent from entire length of dorsal face; propodeal spines triangular in dorsal view and surface between them straight ........................................ bidens Shattuck HNS (part)
4 (3) Pronotal dorsum conspicuously imbricate and only slightly shiny; mesonotum, mesepisternum and propodeum duller, finely and contiguously punctate; dorsal surfaces with abundant prostrate pubescence; distance between outer margins of propodeal spines subequal to width of propodeum at spiracles .................................................................. 5
-- Pronotum and mesepisternum smooth and shiny, contrasting sharply with finely and contiguously punctate propodeum; pronotum with scattered prostrate pubescence; distance between outer margins of propodeal spines much less than width of propodeum at spiracles ……… .. .......................................................................................................................... 7
5 (4) Vertex without erect hairs; gastral terga without erect hairs ............................................ 6
-- Vertex with one pair of short erect hairs below dorsal margin; gastral terga 3 and 4 each with several erect hairs (Liberia) ..................................................... occidentalis Shattuck HNS
6 (5) Head longer than broad; head and body dark brown, lower half of clypeus, mandibles, most of scape yellowish red; meso- and metatarsi whitish (Kenya) .............. icipe HNS , new species
-- Head broader than long; head and body black, hypostomal area, head below, mandibles and legs reddish black; tarsi dark yellowish red (Kenya) .................... kakamegensis Shattuck HNS
7 (4) Propodeal carina low and right-angular to obtuse in profile (Figs. 17, 18) ...................... 8
-- Propodeal carina elevated and acute in profile (Malawi; South Africa) .. tridens (Arnold) HNS
8 (7) At least fourth gastral tergum with at least 2 erect hairs; head and body light to dark brown. ……… ............................................................................................................................. 9
-- Third and fourth gastral terga without erect hairs; head and mesosoma light reddish, petiole and first gastral segment yellowish (Central African Republic) .......... mlalu HNS , new species
9 (8) Hypostomal area without erect or suberect hairs; longest hair on fourth tergum about 0.10 mm long and vertex hair about 0.66 x length of that on frontal lobe (Kenya; Cameroun) ……………………………………………………………… okekai HNS , new species
-- Hypostomal area with several short erect and suberect hairs; longest hair on fourth tergum about 0.06 mm long and longest vertexal hairs about 0.60 x length of that on frontal lobe (Namibia) ............................................................................................ namib HNS , new species
10 (2) Propodeum without medial carina and lateral spines virtually absent in dorsal view; pronotum with one pair of long erect hairs and propodeal spines each with similar hair; clypeal notch broad and shallow (CNI less than 75) ...................................................... 11
-- Propodeum with distinct medial carinae which, at summit of declivity, is usually a low obtuse lobe, less often sharply elevated or dentiform; pilosity various, but usually not as above; clypeal notch relatively narrow, CNI usually over 100, but if as little as 80, then medial carina sharply defined ........................................................................................ 12
11 (10) Head and body medium to dark brown; gena distinctly finely imbricate; larger species, HW consistently over 0.50 mm (Ghana; Cameroun; Kenya) .................. bidens Shattuck HNS (part)
-- Head and body light reddish yellow, gaster sometimes slightly darker; gena smooth and shiny, sometimes weakly imbricate; smaller species, HW usually less than 0.50 mm, but may range up to 0.52 mm (Liberia; Democratic Republic of Congo; Kenya) …………. .................................................................................................... hypoclinoides (Santschi) HNS
12 (10) Distance between outer margins of propodeal spines, in dorsal view, equal to or exceeding width of propodeum at spiracles; pronotum dull and closely pubescent, surface coarsely imbricate or punctate ..................................................................................................... 13
-- Distance between outer margins of propodeal spines, in dorsal view, distinctly less than width of propodeum at spiracles and / or pronotum shiny and sparsely pubescent, surface weakly imbricate ............................................................................................................ 14
13 (12) Erect hairs of head and mesosoma brown, coarse and seta-like; propodeal spines short, no longer than thick in profile (Ghana) ....................................................... nigripes Shattuck HNS
-- Erect hairs of head and mesosoma yellowish and fine, not seta-like; propodeal spines distinctly longer than thick in profile (Kenya) ..................................... luhya HNS , new species
14 (12) Mesonotum either smooth and shiny between several short longitudinal rugae or slightly shiny and coarsely rugulose .......................................................................................... 15
-- Mesonotum moderately shiny, anteriorly finely imbricate, posteriorly duller and densely punctulate ..................................................................................................................... 16
15 (14) Mesonotum smooth and shiny between short longitudinal rugae; head and body light reddish brown (Tanzania) .................................................................. stageri HNS , new species
-- Mesonotum slightly shiny and coarsely rugulose; head and body dark brown (South Africa) ……………………………………………………………………… lignicola HNS , new species
16 (14) Scape shaft with fine prostrate pubescence, but no suberect to erect hairs; front of head, exclusive of clypeus, with six hairs (two along each frontal carina and two on upper frons) ....................................................................................................................................... 17
-- Scape shaft with at least one or two short erect hairs in addition to appressed pubescence; front of head, exclusive of clypeus, with two hairs along each frontal carina and four or more on frons ................................................................................................................. 19
17 (16) Distance between outer margins of propodeal spine apices distinctly less than width of propodeum at level of spiracles; frons and vertex moderately shiny, weakly imbricate and with scattered weak punctures; gaster concolorous with mesosoma .............................. 18
-- Distance between outer margins of propodeal spine apices at least equal to width of propodeum at level of spiracles; frons and vertex weakly shiny, contiguously finely punctate and strigulate; mesosoma brown, gaster yellowish red (Ghana) ............................................................................................
........................................................................................................ palligastrion Shattuck HNS
18 (17) Medial carina broadly rounded in profile; second gastral tergum moderately shiny and densely punctate (Republic of Congo) ............................................ denticulata (Wheeler) HNS
-- Medial carina subacute in profile; second gastral tergum shiny between sparse punctures (Ghana) ............................................................................................... ghanensis Shattuck HNS
19 (16) Pronotum with at least two fully erect hairs in addition to humeral pair; frons slightly shiny to shiny, varying from finely colliculate to weakly coriarious and scabriculous ........... 20
-- Pronotum with only two long fully erect hairs, one at each humerus; frons shiny, varying from smooth to obscurely coriarious (Gabon) ............................... gabonica HNS , new species
20 (19) Scape shaft distinctly with six or more short erect hairs; frons slightly shiny, finely colliculate to imbricate ................................................................................................... 21
-- Scape shaft with only one or two very short erect hairs; frons shiny, weakly coriarious (Nigeria) ................................................................................................... kinoin Shattuck HNS
21 (20) Body color reddish yellow; gaster yellow, similar in color to posterior portion of petiole (Ghana) ............................................................................................... hylekoites Shattuck HNS
-- Entire head and body reddish brown, gaster darker than posterior portion of petiole (Cameroun; Ghana; Kenya) .................................................................. murielae Shattuck HNS
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