Oedichirus Rougemont 2018
Creators: name: Rougemont, Guillaume de
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Oedichirus

description: Key 2: Bornean species of Oedichirus
In this and the keys that follow, species in brackets are ones not recorded from the territory in question but that are likely to occur there.
1 Micropterous: elytra shorter than pronotum, humeral angles obsolete; punctures of abdominal tergites arranged in transverse rows; body entirely black; habitus: Fig. 32h; aedoeagus: Fig. 32arl............................................................................... viduasinae nov.sp.
- Macropterous: elytra large, at least as long as pronotum, humeral angles pronounced .......2
2 Body black or brown; punctures of abdominal tergites disposed randomly ........................3
- Body bicolorous, head, elytra and abdominal segments VII-IX black, pronotum and abdominal segments III-VI red; punctures of abdominal tergites arranged in transverse rows. Habitus: Fig. 14h ..................................................................... (longipennis KRAATZ)
3 Temples short, with well marked posterior angles; antennae and legs shorter; sides of pronotum sub-rectilinear .....................................................................................................4
- Temples longer, posterior angles obsolescent; antennae and legs very long and slender; sides of pronotum concave (‘Wallacei group’)....................................................................5
4 Larger species, fore-body 4.6 mm; body black; apices of femora more markedly infuscate; habitus: Fig. 30h; aedoeagus: Fig 30arl; vulvar plate: Fig. 30vp .......................... ................................................................................................................ balnearius nov.sp.
- Smaller species, fore-body ca. 3.8 mm; body dark brown; apices of femora scarcely infuscate; habitus: Fig. 31h; aedoeagus: Fig. 31 arl; vulvar plate: Fig, 31vp ........................ .......................................................................................................... pendleburyi CAMERON
5 Larger, length of fore-body 5.2 mm; elytra of characteristic shape, depressed in anterior half; habitus: Fig. 27h............................................................................... muluensis nov.sp.
- Smaller, length of fore-body 3.5-4.5 mm; disc of elytra convex or flat...............................6
6 Smaller, fore-body <4 mm, brown or rufo-testaceous; knees concolorous, testaceous ......7
- Larger, fore-body> 4 mm, black; knees infuscate; disc of elytra convex; habitus: Fig. 25h; vulvar plate: Fig. 25vp ......................................................................... brlensis nov.sp.
7 Body brown, lateral and hind margins of elytra paler; disc of elytra more convex; habitus: Fig. 29h; male 8 th sternite: Fig. 29s8; aedoeagus: Fig. 29arl.......... wallacei nov.sp.
- Body uniformly pale brown; disc of elytra flat; habitus: Fig. 28h; male 8 th sternite: Fig. 28s8; aedoeagus: Fig. 28arl .................................................................... tempestivus nov.sp.
Key 3: species of Oedichirus known from Thailand
1 Elytra bicolorous, black and red, head black.......................................................................2
- Elytra unicolorous, black or brown .....................................................................................6
2 First four exposed abdominal segments red; legs entirely testaceous..................................3
- First three exposed abdominal segments red; knees and most of tibiae infuscate (see also key to O. Alatus group)................................................................................................4
3 Length of fore-body: 3.4 mm; elytra larger, more sparsely punctate, red portion occupying almost half of their length (Fig. 3h); male sternite VII: Fig. 3s8; aedoeagus: Fig. 3arl ................................................................................................ chapmani CAMERON
- Length of fore-body: 2.1 mm; elytra proportionately smaller, more densely punctate, the red portion only occupying one quarter of their length (Fig. 8h); male sternite VIII: Fig. 8s8; aedoeagus: Fig. 8arl................................................................. (sihanouki nov.sp.)
4 Habitus: Fig. 9h; male sternite VIII: Fig. 9s8; aedoeagus: Fig. 9arl; vulvar plate: Fig. 9vp ................................................................................................................ vexans nov.sp.
- Sexual characters otherwise ................................................................................................5
5 Male sternite VIII: Fig. 12s8: vulvar plate: Fig; 12vp ................................................ sp. A4
- Vulvar plate: Fig. 10vp............................................................................................... sp. A1
6 Bicolorous species, head, elytra and abdominal segments 7-8 black, pronotum and abdominal segments 3-6 red; punctures of tergites arranged in transverse rows.................7
- Unicolorous black or brown species; punctures of abdominal tergites disposed randomly .............................................................................................................................8
7 Elytra large, as long as pronotum, densely punctuate with prominent humeral angles; habitus: Fig. 14h; aedoeagus: Fig. 14arl............................................... longipennis KRAATZ
- Elytra small, much shorter than pronotum, sparsely punctuate, humeral angles obsolete; habitus: Fig. 17h.................................................................................. kochangensis nov.sp.
8 Fully winged species, elytra elongate, ample, convex, humeral angles prominent; body black, legs entirely testaceous .............................................................................................9
- Micropterous species, humeral angles obsolescent ...........................................................10
9 Smaller species, length of fore-body: 4 mm; habitus: Fig. 45h; aedoeagus: Fig. 45arl ......... ................................................................................................................ lannaensis nov.sp.
- Larger species, fore-body: 5 mm; habitus: Fig. 46h; aedoeagus: Fig. 46arl .......................... .................................................................................................................. (laoticus nov.sp.)
10 Elytra elongate, of characteristic shape (Fig. 42h); body black, knees broadly and deeply infuscate; abdomen entirely microsculptate............................... strictipennis nov.sp.
- Elytra small, as long as broad or transverse; knees unicolorous, testaceous; abdomen not entirely microsculptate ................................................................................................11
11 Larger species,> 8 mm; ventral sclerite of aedoeagus with a pair of large asymmetrical lamellate processes (Figs 43 arl,); male 8 th sternite: Fig. 43s8)................ birmanus FAUVEL
- Smaller species, <8 mm; ventral sclerite of aedoeagus with a single process ..................12
12 Habitus: Fig. 47h; puncturation of tergites V-VII finer, sparser and clearly arranged in transverse rows; aedoeagus: Fig. 48arl............................................ mediosiamensis nov.sp.
- Habitus: Fig. 48h; puncturation of tergites V-VII coarse, dense and disposed randomly aedoeagus: Fig. 48arl..................................................................................... uncifer nov.sp.
Key 4: species of Oedichirus known from southern India
1 Elytra elongate, humeral angles marked..............................................................................2
- Elytra transverse, humeral angles obsolete..........................................................................3
2 Bicolorous, thorax red, elytra black; elytra broad, sides evenly rounded; habitus: Fig.14h; aedoeagus: Figs 14arl............................................................. longipennis KRAATZ
- Unicolorous, thorax and elytra black; sides of elytra constricted between humeral angles and middle; habitus: Fig.; 41h; aedoeagus: Fig. 41arl ...................... niger CAMERON
3 Pronotum without series of discal punctures and/or other punctures on centre of disc, but only a few lateral punctures (Figs 22h, 23h, 24h); puncturation of head sparse, or consisting of only two punctures .........................................................................................4
- Pronotum with discal series and/or other punctures on centre of disc; head strongly and more densely punctuate .......................................................................................................6
4 Smaller species with narrower fore-body; head with sparse punctures ...............................5
- Larger species with broader fore-body; head with only one pair of punctures near posterior margin; habitus: Fig. 24h; vulvar plate: Fig. 24vp. Anaimalai Hills ...................... .......................................................................................................... lucabosmontis nov.sp.
5 Head black, smaller and more transverse: punctures on last row of each abdominal tergite as numerous and closely spaced as on anterior rows; habitus: Fig. 22h; aedoeagus: Fig. 22arl. Cardamon Hills ........................................... cardamomensis nov.sp.
- Head rufo-testaceous, concolorous with pronotum and elytra, larger and less transverse (Fig. 23h); punctures on last row of each abdominal tergite fewer and more widely spaced than on anterior rows; male sternite VIII: Fig. 23s8; aedoeagus: Fig. 23arl. Coorg....................................................................................................... coorgensis nov.sp.
6 Head red ..............................................................................................................................7
- Head brown or black ...........................................................................................................9
7 Elytra bicolorous, black and red; aedoeagus: Fig. 1arl................................. alatus NIETNER
- Elytra uniformly reddish-testaceous, concolorous with head and pronotum .......................8
8 Abdominal segment III black; last row of punctures on abdominal tergites (on posterior margin) widely and irregularly spaced; vulvar plate: Fig. 18vp ................. ruficeps KRAATZ
- Abdominal segment III rufo-testaceous; last row of punctures on abdominal tergites as closely and regularly spaced as those of preceding rows; vulvar plate: Fig. 20vp ................ ...................................................................................................................... rufulus nov.sp.
9 Elytra bicolorous, black and red; aedoeagus: Fig. 1arl........................... alatus NIETNER ab.
- Elytra unicolorous, black or brown ...................................................................................10
10 Larger species, fore-body ca. 3 mm long; body entirely black, legs entirely testaceous; habitus: Fig. 50h; aedoeagus: Fig. 50arl; vulvar plate: Fig. 50vp...................... latus nov.sp.
- Small species, fore-body ca. 2 mm long; head and pronotum dark brown, elytra rufous, abdominal tergites black, the posterior ¼ of tergites III-VI rufous; legs dark testaceous, apical halves of femora and tibiae slightly infuscate habitus: Fig. 51h; aedoeagus: Fig. 51arl; vulvar plate: Fig. 51vp ................................................................ segmentatus nov.sp.
Check-list of the species of Oedichirus of the Oriental Region
(junior synonyms are indented in small type.)
abbreviatus ASSING ...................................... Yunnan
alatus NIETNER ............................................. Ceylon, Pakistan, India, Burma
dimidiatus EPPELSHEIM
angusticeps ROUGEMONT .............................. Malay peninsula
astoni ROUGEMONT ....................................... Hong Kong
balnearius ROUGEMONT ............................... Borneo
bicuspidatus ASSING ..................................... Assam, Meghalaya
birmanus FAUVEL ......................................... Burma, Thailand
bowringi ROUGEMONT .................................. India
brlensis ROUGEMONT .................................... Borneo
cardamomensis ROUGEMONT ........................ S. India: Cardamon Hills
chapmani CAMERON ..................................... Widespread in subtropical E Asia
coorgensis ROUGEMONT ............................... S. India: Coorg
damingensis LI .............................................. Guangxi
depravatus ASSING ....................................... Meghalaya
falcifer ROUGEMONT ..................................... Malay peninsula
flammaeus KOCH .......................................... Zhejiang
formosanus ROUGEMONT .............................. Taiwan
guomindangi ROUGEMONT ........................... Taiwan
hochimini ROUGEMONT ................................. Vietnam
javanicus ROUGEMONT ................................. Java
kiushii SAWADA ............................................ Japan
kochangensis ROUGEMONT ........................... Thailand, Cambodia
kuroshio HAYASHI ........................................ Ryukyu Islands, Taiwan
latexisus ASSING ........................................... Yunnan
lannaensis ROUGEMONT ............................... Thailand, Laos
laoticus ROUGEMONT .................................... Laos
latus ROUGEMONT ......................................... S. India
lewisius SHARP .............................................. Japan, Korea, Sakhalin
longipennis KRAATZ .....................................Widespread
excellens CAMERON
idae SHARP
schultheissi FAUVEL
lucabosmontis ROUGEMONT .......................... S. India: Anaimalai Hills
mahanuvaraensis ROUGEMONT .................... Ceylon
nepalensis ROUGEMONT ................................ Nepal
minor CAMERON ........................................... Ceylon
muluensis ROUGEMONT ................................. Borneo
mutilus ROUGEMONT ..................................... Palawan
niger CAMERON` ........................................... S. India
palawanensis ROUGEMONT ........................... Palawan
patcholatkoi ROUGEMONT ............................. Malay peninsula
pendleburyi CAMERON .................................. Sunda Islands, Malay peninsula, Singapore
pengzhongi LI ............................................... Hainan
philippinus ROUGEMONT ............................... Mindoro
ruficeps KRAATZ ........................................... India
rufotestaceus BERNHAUER ........................... Ceylon
rufulus ROUGEMONT ..................................... S. India
schuelkei ASSING .......................................... Yunnan
segmentatus ROUGEMONT ............................. S. India
shibatai ROUGEMONT .................................... Taiwan
sihanouki ROUGEMONT ................................. Cambodia
sindicus ROUGEMONT ................................... Pakistan
strictipennis ROUGEMONT ............................. Thailand
tempestivus ROUGEMONT .............................. Borneo
torajah ROUGEMONT ..................................... Celebes
uncifer ROUGEMONT ..................................... Thailand
vexans ROUGEMONT ...................................... Thailand
viduasinae ROUGEMONT ............................... Borneo
vulcanus ROUGEMONT .................................. Java
wallacei ROUGEMONT ................................... Borneo
description: Published as part of Rougemont, Guillaume de, 2018, New oriental Oedichirus (Staphylinidae, Paederinae, Pinophilini), pp. 461-536 in Linzer biologische Beiträge 50 (1) on pages 512-516, DOI: 10.5281/zenodo.4004245