Oedichirus, Rougemont, 2018

Rougemont, Guillaume de, 2018, New oriental Oedichirus (Staphylinidae, Paederinae, Pinophilini), Linzer biologische Beiträge 50 (1), pp. 461-536 : 512-516

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