Allogalumna (Allogalumna) iranica, Akrami, Mohammad Ali, 2015

Akrami, Mohammad Ali, 2015, A New Species Of Allogalumna (Acari, Oribatida, Galumnidae) From Iran, Including A Key To All Species Of The Genus, Acta Zoologica Academiae Scientiarum Hungaricae 61 (3), pp. 205-224 : 206-211

Allogalumna (Allogalumna) iranica sp. n. ( Figs 1–14)

Diagnosis – Allogalumna (Allogalumna) iranica sp. n. ischaracterizedby thecombinationofthefollowingcharacterstates: Bodysize 453–489 × 350– 380; rostrumrounded; rostralandlamellarsetaemediumlong, thinand smooth; interlamellarsetaelongandthick, finelybarbed; sensillilong, with denselybarbed, slightlydilatedlanceolatehead; dorsosejugalfurrowmedi- allynotdeveloped; fourpairsofroundporoseareas, Aa larger, slightlyoval; postanalporoseareaelongated, narrowedmedially; dorsalmedianporepresentinfemalesandmales.

Materialexamined – Holotype (female): Ghalat, FarsProvince, southernIran, soil of pasture under Centaurea sp. and Hordeum sp. (Gramineae) , 29º 48´N; 52º 19´E, 2070 m a.s.l., 16.x.2012, F. Ebrahimileg.; fourparatypes (twofemales, twomales): samedataas holotype.

Description – Integument. Bodycoloryellowish- brown. Cerotegumentwithsmall granules. Cuticleofbodyindorsolateralpartsofnotogasterwithradiateimpressions. Pteromorphswithfinestriations.

Measurements. Holotype: bodylength 500, widthofnotogaster 395, lengthofnoto- gaster 368; paratypes (n = 4): bodylength 453, 489 (females); 453, 474 (males); widthof notogaster 350–380, lengthofnotogaster 368–380. Malesandfemalessimilarinsize.

Prodorsum ( Figs 1, 4, 5–7). Rostrumrounded. Sublamellarlinedistinct. Rostralsetae (ro, 49–56) thin, setiform, smooth, insertedventro- laterallyandwellvisibleindorsofrontal view. Lamellarsetae (le, 46–53) thin, smooth. Interlamellarsetae (in, 72–81) long, thick- ened, finelybarbedbilaterally, notreachingthetipofrostrum. Exobothridialsetaenot observed. Sensilli (ss, 103–125) withlongandnarrowstalkanddenselybarbed, slightly dilatedlanceolatehead. Apairofelongateovaladalarporoseareas Ad locatedposteriorto interlamellarsetae.

Notogaster ( Figs 1, 10, 11). Notogasterwidelyroundedposteriorly. Dorsosejugalfur- rownotdevelopedmedially (betweendorsophragmata). Pteromorphswithfinestriations. Notogastralsetaevestigial, theiralveolidiscernable. Fourpairsofporoseareaspresent: Aa (26 × 20) large, nearly oval, A 1 (18 × 17), A 2 (18 × 13) and A 3 (17 × 13) nearly rounded. Median porepresentinbothsexes, situatedinmiddlelinebetweenporoseareas A 2. Opisthonotal glandopenings (gla) situatedanterolateradof A 1. Lyrifissures im insertedanteromedially to A

1

, ratherfarfromit, infrontofsetae lp.

Gnathosoma ( Figs 13, 14). Subcapitulumbearingthreepairsofhypostomalsetae, all thinanddenselybarbed. Palptypicalforfamily, allsetaeexceptontarsusfinelybarbed, formulaofsetation: 0–2–1–3–9 (+1 ω), solenidionωandeupathidium acm ontarsusfused andthreeothereupathidianotfusedandlocatedfartoeachother. Chelicerawithsclerotizedteeth, cheliceralsetaesetiform, barbed, cha longerthan chb.

1–3 = 100 μm, 4 = 50 μm.

Epimeralregion ( Fig. 2). Apodemes apo.1, apo.2, apo.sj and apo.3 welldeveloped. Only fivepairsofshortepimeralsetaeobserved, setalformula: 1–0–2–2.

Anogenitalregion ( Figs 2, 3, 8, 9). Analandgenitalaperturessituatedfarfromeachoth- er, analaperture (112 × 118) muchlargerthangenitalaperture (66 × 80). Sixpairsofgenital setae (13–19), threearrangedonanterioredge, oneinsertedinmiddlepartandtwoothers Scale bars: 5, 8, 9 = 50 μm, 6, 7, 10 = 25 μm.

onposteriorhalfofgenitalplates. Onepairofaggenitalsetae (13) situatedposteriortogeni- talaperture. Twopairsofanal (20–22) andthreepairsofadanalsetae (22–26). Adanallyri- fissures iad situatedinparanalposition, slightlyposteriortosetae ad 3. Allanogenitalsetae shortandsmooth. Alarge, elongatedpostanalporosearea Ap present, narrowedmedially.

Legs ( Fig. 12). Alllegstridactylouswithstrongermedianandslenderlateralclaws. Structureandsetationoflegstypicalforfamily. Allsetaeonpodomeresbarbed, especially someventralsetaeoftarsiheavilybarbedwithlongcilia. Formulaofsetation, including famulus: I (1–4–3–4–20), II (1–4–3–4–15), III (1–2–1–3–15), IV (1–2–2–3–12), formula of sole- nidiaI (1–2–2), II (1–1–2), III (1–1–0), IV (0–1–0). Homologyofsetaeandsolenidiaindicated inTable 1.

Etymology – Thespecificname “ iranica ” referstothetypelocalityofthisspecies, Iran.

Remarks – Allogalumna (Allogalumna) iranica sp. n. is unique among the knownspeciesof Allogalumna bythecombinationofthefollowingfeatures, namelytheundevelopedmedialportionofthedorsosejugalfurrow; four pairsofroundornearlyovalporoseareas; slightlydilatedlanceolatehead ofsensilliwithlongstalk; theroundedrostrum; thelong, thickenedinterla- mellarsetae, positionoflyrifissures im anteromediadof A 1, presenceofnoto- gastralmedianpore (infemalesandmales) andalarge, elongatedpostanal porosearea.

TheEuropeanspecies, A. (A.) integer describedbyBeRLese (1904) as Oribataalatainteger andredescribedbyMAHunKA (1992) resemblesthenewspeciesinthestructureofporoseareas, dilatedsensilli, longinterlamellarsetae andundevelopedmedialportionofthedorsosejugalfurrow. However, the formerspeciesisdistinguishedfromthepresentnewspeciesbytheshorter stalkandswollenheadofsensilli; longerandbarbulatelamellarsetae; inser- tionoflyrifissures im lateradofporoseareas A 1; insertionofnotogastralmedianporeposteromediadofporoseareas A 2; smalleradalarandnotogastral poroseareas, anddifferentpositionofnotogastralsetae c onpteromorphs.

TheMediterraneanspecies, A. (A.) parva describedbyBeRLese (1916) as Oribataparvus andredescribedbyMAHunKA (1992) issimilarto Allogalumna (A.) iranica sp. n. inthestructureofporoseareasandprodorsalsetae, butit isdifferentfromthenewspeciesintheshortersensilli, withclavatehead; absenceofdorsosejugalfurrow; insertionoflyrifissures im lateradofporose areas A 1, andsmallerbodysize (420 × 320).

TheTurkishspecies, A. (A.) turkeyensis describedbyGRObLeR etal. (2004) resemblesthenewspeciesinslightlydilatedsensilli. However, theformer speciesisdistinguishablefromthenewspeciesbytheshortersensilliwith roundedtip; thickerinterlamellarsetae; longerlamellarsetae; largerporose areas A 1, A 2 and A 3; insertionoflyrifissures im lateradofporoseareas A 1, and smallerbodysize (369–421 × 220–242).