Thinobius micros Fauvel, 1871
publication ID |
https://doi.org/ 10.5281/zenodo.5732150 |
persistent identifier |
https://treatment.plazi.org/id/F21687A6-5674-FFF2-FDB8-FC0FFB9923B8 |
treatment provided by |
Felipe |
scientific name |
Thinobius micros Fauvel, 1871 |
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Thinobius micros Fauvel, 1871 View in CoL
( Figs 6 View Figs 1–6 , 18 View Figs 13–26 , 35–37 View Figs 34–40 , 44, 48–50)
Thinobius micros FAuvel, 1871: 163 View in CoL [= 1872: 137].
Thinobius algiricus FAuvel, 1898: 94 View in CoL ., syn. n.
Thinobiusernesti BeRNhAueR, 1908: 332. (newsynonyminSChülKe & MAKRANCZY 2011)
Examinedtypematerial – Thinobiusmicros Fauvel – Lectotype (m), bypresentdesignation: “Fréjus \ micros; Fauv. \ R. I.Sc. N.B. 17.479; Coll. etdet. A. Fauvel \ Syntype \ m \ Lectotypus; Thinobius ; microsFauvel; des. Makranczy, 2001 \ Thinobius ; micros Fauvel ; det. Makranczy, 2010” ( ISNB); Paralectotypes (4): samedataaslectotype (1m, 3f, ISNB); Thinobiusalgiricus FAuvel – Lectotype (f), bypresentdesignation: “[ Algeria: Djebel] Ouarsenis \ confonduavec; longipennis \ algiricus; Fvl. n. sp.; Désiré [underlined] \ Ty- pus \ Collection; Vauloger \ Lectotypus; Thinobius ; algiricusFauvel; des. Makranczy, 2010 \ Thinobius ; microsFauvel; det. Makranczy, 2010” (coll. Peyerimhoff, MNHP); [Forthe type of Thinobius ernesti , see Makranczy & Schülke, 2001: 191.] .
Redescription – Measurements (in mm, n=6): HW = 0.20 (0.19–0.20); TW = 0.19 (0.185– 0.20); PW = 0.21 (0.205–0.22); SW = 0.22 (0.21–0.22); AW = 0.24 (0.23–0.24); HL = 0.18 (0.17– 0.19); EL = 0.07 (0.06–0.07); TL = 0.05 (0.05–0.06); PL = 0.17 (0.16–0.175); SL = 0.28 (0.26–0.29); SC = 0.24 (0.23–0.25); FB = 0.61 (0.59–0.64); BL = 1.10 (1.03–1.19). Body ( Fig. 6 View Figs 1–6 ) very slightly bicoloured. Head, pronotumandabdomenslightlyreddishdarkbrown, elytrareddish mediumbrownwithadarkerareabehindscutellumextendingtoshoulders. Legsand mouthpartsmediumbrown, apicesoffemoraandbothendsoftibiaeoftenlighter, together withtarsi; basalpartofantennamuchlighter (yellowish) thanapicalarticles, latteroften significantlyblackish. Forebodywithveryfinecoriaceousmicroreticulation, ratherdull. Punctationonforebodyratherdenseandsofinethathardlydiscernible. Discsofabdominaltergiteswithaparticulartypeoftransversalmicrosculptureandlongitudinalmicrosetationarrangedintheminutetransversalridgesthatcausesaslightiridescenteffect. Pu- bescenceonforebodydepressedandveryshort, fineanddense (onelytrathemostdense), onabdomenapicesoftergiteswitharowoflonghairs, andasparsesetationcomposedof similarbutshorterhairs; abdominalsidesandapexwithafewdarkerandstrongerbristles. Strongdarkbristleonoutersideofsupraantennaltubercleatanteriorborderofeye (thosenearouterposterioredgeofvertexweaklydeveloped), similaronesrightbehind anteriorpronotalcornerandonsideat 3/5 length. Setationanteriorlydirectedonheadand pronotum, directionposterioronelytraandabdomen. Antennaewithlonger, darkerhairs onbasalarticles, legsandmouthpartswithveryshort, notconspicuoussetation, exceptfor thestiff, darkermid-tibialhairsondonesnearapicesoffemora. Sidesofelytrawiththree suchstiffsetaeaboutequallydistributedonlengthofside.
Headslightlywiderthanlong, templesusuallystraight, withagentlecurveonthe side, roundedonposteriorpart. Middleofvertexverygentlyimpressed. Anteriorborder ofneckisstronglymarkedwithashiny, arched, deepgroove. Frontoclypealsutureappear- ingasweakgrooveandadarkline (visibleonlyifheadlighter) connectingsupraantennal tubercles, similarlydarkerspotssituatedatbothsidesonmiddleofvertex. Supraantennal tuberclesmoderatelydeveloped, separatedfromvertexbylongitudinalimpression. An- tennaemoderatelyshort ( Fig. 18 View Figs 13–26 ), 6thantennomereappearingaswideasadjacentones.
Pronotumweaklytransverse, 1.25× widerthanlong, justatinybitwiderthanhead, withonlytracesofimpressionsinanteriorhalfofmiddleofdiscandnearanteriorcor- ners. Anteriorcornersmoderatelyweaklyrounded, posteriorcornersverybroadly, sides almostinarchwithposteriormargin. Pronotalmarginalbeadvisibleonposteriormargin, anteriormarginslightlypulledaheadinmiddlebutwithoutvisiblemarginalbead. Scutellumsmall, ifexposed, shinierthanadjoiningareas. Elytralong, oneelytronabouttwice aslongasbroad, quiteflatandparallel-sided (verygentlydilatingposteriorly). Shoulders moderatelydeveloped. Alongsuturewithouteventracesofmarginalbead; suturalcorners broadlyrounded. Legsofmediumlength, tarsallobessmallandthin, inconspicuous, tibiae fusiform, appearmuchwiderinmiddlethanatends.
Abdomenveryweaklyfusiform, sidesmoreorlessstraightandparallel; widestat 1/3 length, justveryslightlylesswidethanelytraatbroadestpoint. Posteriormarginoftergite VIIwithpalisadefringeandposteriorcornersbroadlyrounded.
Primaryandsecondarysexualfeatures: Sexesnotappearingdifferentinregulardor- salview. PosterioredgeoftergiteVIII (similarinbothsexes) gentlyconcave, arched. Male sterniteVIIIasinFig. 35 View Figs 34–40 , tergiteIXasinFig. 36 View Figs 34–40 , sterniteIXasinFig. 37 View Figs 34–40 . AedeagusasinFig. 44. FemalegenitalappendageasinFig. 48, spermathecaasinFigs 49–50.
Distribution – Obviouslyaveryrareandlocalspecies, possiblyextinctfrommost ofitsformerrange. ThisisindicatedbyitsoldrecordfromAustria, whilenotcollectedin CentralEuropeinthepastcentury. TheNorthernAfricanoccurrencesuggeststhatitoriginallyhadcircum-mediterraneandistribution.
Remarks – Theaedeagusdrawingof “ T. ernesti ” inMAKRANCZYandSChül- Ke (2001) wasmadebasedonitspoorlypreservedholotypewiththeaedeagus ratherdistorted. Theherepresentednewillustrationisbasedonmorespecimens, improved, soshouldsubstitutefortheearlierfigure. Therearestillonly therespectivetypematerials (morethanahundredyearsold) availableforthis species. SincePeYeRimhoff’ s (1931) identification (basedonatypestudy) of “ T. algiricus ” isincorrectandinfactreferstoaverysimilarbutsignificantlylarger, clearlydistinctspecies, thelatterhastobedescribedasnewbelow.
R |
Departamento de Geologia, Universidad de Chile |
MNHP |
Princeton University |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Thinobius micros Fauvel, 1871
Makranczy, György 2014 |
Thinobius algiricus FAuvel, 1898: 94
FAuvel, A. 1898: 94 |
Thinobius micros FAuvel, 1871: 163
FAuvel, A. 1872: 137 |
FAuvel, A. 1871: 163 |