Pedrocortesella Hammer, 1961

Hunt, Glenn S., 1996, A review of the genus Hexachaetoniella Paschoal in Australia (Acarina: Cryptostigmata: Pedrocortesellidae), Records of the Australian Museum 48 (3), pp. 223-286 : 228-230

publication ID	https://doi.org/ 10.3853/j.0067-1975.48.1996.431
DOI	https://doi.org/10.5281/zenodo.7950888
persistent identifier	https://treatment.plazi.org/id/0387B964-3964-FFD1-FE67-FEBEF7A6F564
treatment provided by	Felipe
scientific name	Pedrocortesella Hammer, 1961
status

Treatment

Pedrocortesella Hammer, 1961 View in CoL View at ENA

Pedrocortesella Hammer, 1961: 38 View in CoL .~P. Balogh, 1985: 49.~ Luxton, 1985: ㌷⹾偡獣桯慬Ⱐ 1987b: 386; 1989: ㄹ㠮縠 Balogh & Balogh, 1988: 92; 1992: 48.~ Fernandez, 1990: 㠴⹾䕧畡牡猠 et al., 1990: ㈷㘮繈畮琠 & Lee, 1995: 245.

Acupedicellus Hunt & Lee, 1995: 232 View in CoL , new synonym. (Type species: A. cornutus Hunt & Lee, 1995 by original designation.)

Type species. Pedrocortesella pulehra Hammer, 1961 , by monotypy.

Diagnosis. Prodorsum with deep transverse furrow, enantiophyses lacking, bothridium abutting notogaster, sensillus nearly always a petiolate blade, rarely a petiolate club; seta ex absent; notogaster flattish in lateral aspect, usually concave inside the margin; integument alveolate-reticulate, foveate-reticulate or punctate; 5-6 pairs of notogastral setae, 2-3 of which are anterior to fissura ip, setae p2x never lateral or posterior to ip; setae p2x and p3x at same level as hI, not on posterior flank at same level as pI; lm if present not mesad of fissura im but well posterior to it; seta ag anterior to posterior margin of genital valves; 2 (rarely 3) pairs of anal setae, 2-3 pairs adanal; tarsal cluster orientated dorsad or distodorsad, solenidion omega I usually shorter than seta fi"; integument of legs usually reticulate or in wavy crests; iteral setae absent on tarsus of leg IV

Description

Plateremaeoid mites ofmedium size (400-750 /lm); body covered with layer of cerotegument, reticulation pattern and other high points usually with stellate cushion-like mounds of cerotegument which often coalesce into crests; notogaster of adults ovate, adult carrying exuvial scalps or scalps may be absent or missing; prodorsum with deep transverse furrow but no enantiophyses; seta le lateral or dorsolateral, ro ventrolateral; seta ex absent; seta in small, spinous and arising from apophysis; bothridium with posterolateral carina; bothridium abutting notogaster, its posterior wall sometimes incomplete; distal part of sensillus usually a flattened, tuberculate blade; notogaster flattish in lateral aspect, concave intramarginally, concave area often U-shaped or obovate; integument alveolate-reticulate, foveate-reticulate, or punctate; 5-6 pairs of marginal setae in posterior part of notogaster, setae hI, lpx, p2x and p3x situated dorsally, latter two always anterior to fissura ip; pI situated on posterior flank ventral to hI, lm usually absent, if present situated well posterior to fissura im; pedipalp tarsus seta I" usually with barbs, apophysis supporting eupathidial seta aem short; ventral antiaxial and paraxial processes on chelicera well developed; anal and genital plates close; genitoanal chaetotaxy 6-7:1:2(rarely 3):3(rarely 2); genital setae either forming straight line near inner margin of plate, or forming an arc; seta ag anterior to posterior margin of genital valves; setae adI usually posterior to anal plates, setae ad3 usually most laterad; cerotegument on legs reticulate, often forming strong wavy crests; leg tarsi heterotridactylous, laterals weaker than central prong; stalk usually short and stout, tarsus sometimes with distal recess to receive retracted unguinal complex; tarsal cluster ofleg I with setafi" and solenidia omega I and 2 usually surrounded by collar, though former may be partitioned from solenidia; entrance to cavity containing undeveloped famulus (seta epsilon) not usually visible under SEM; omega I and 2 usually shorter than ft"; iteral setae absent on tarsus of leg IV

Comments. The belief by Aoki (1974, 1984) and Ryabinin (1986) that Pedrocortesella is a junior synonym of Pedroeortesia is not accepted in this work. Pedroeortesia is now regarded by most authors as a junior synonym ofPheroliodes, whereas Pedrocortesella is regarded as a separate taxon (Hunt & Lee, 1995).

Hunt & Lee (1995) erected the monotypic genus Aeupedieellus for A. cornutus . Increased knowledge of the Australian fauna and re-examination of the type species of Pedrocortesella suggest that the variation in leg I structure on which the genus was based does not warrant separate generic status. The dorsal apophysis on the femur of leg I and the tapering tarsus are best regarded as autapomorphies for the species. The species becomes Pedrocortesella cornuta , n.comb.

The nominal species P dispersa and P queenslandica each represent radiations which warrant separate generic status and are redescribed elsewhere ( Hunt, 1996b; 1996c).

Key to adults of Australian species of Pedrocortesella

(For identification under transmitted light the animal should be cleared. Scalps, if present, should be noted and removed to assist identification).

1 Terminalpartof sensillus aflattenedblade( Figs 39 View Fig Dand39A TODO TODO TODO TODO TODO show differentaspects), curvedandnot truncatedistally .................................................. TODO 2

--Terminalpartof sensillus eitherwitharounded club-like head TODO TODO TODO TODO Fig.34E) ortruncate TODO distally( Fig.46 B View Fig )......................................................................... 21

2 Notogaster withlarge seta placed mesad ofmost anterior TODO TODO TODO TODO TODO TODO P augusta View in CoL n.sp.

--Notogaster without a seta placed mesad of most anterior marginal seta ( Fig. 41E View Fig )......................................................................................................... 3

3 Notogasterwith conspicuous caudalconcavityor notch(when TODO TODO TODO TODO bodyis horizontal andviewed fromabove)(Fig.22A) ................ ........................... ......... TODO 4

--Notogaster without conspicuous caudal concavity or notch (when body is horizontal and viewed from above) ( Fig.39A View Fig )........................................... 10

4 Notogaster pitted by punctations or small foveae ( Fig. 4 View Fig IE)............................................ 6

--Notogaster not pitted by punctations or small foveae........................................................ 5

5 Notogaster centrodorsallywith anirregular patternof ridges TODO TODO TODO TODO P hangayi View in CoL n.sp.

-- Notogaster centrodorsally reticulate, anteriorly with prominent mesal carina (Fig. 22A)................................................................................. P gunjina View in CoL n.sp.

6 Femur of leg I with very strong dorsal process; or tarsus of leg I gradually tapering to the stalk supporting claw complex (see fig. 6D in Hunt & Lee, 1995) P cornuta (Hunt & Lee) View in CoL n.comb.

-- Femur of leg I without a strong dorsal process; tarsus of leg I with abrupt transition to the stalk supporting the claw complex...................................................................................................................................... 7

7 Notogastral setae including cerotegument leaf-shaped ( Fig. 41F View Fig ); northern Australia.................................................................................. P subula View in CoL n.sp.

-- Notogastral setae including cerotegument not leaf shaped ( Fig. 14B,D View Fig ); northern or southern Australia................................................................................ 8

8 Notogastral integumentwith reticulate pattern ofhigh relief, TODO particularly around margins( Fig. 16A View Fig ); north-west Australia................ P calmorum View in CoL n.sp.

-- Notogastral integument without reticulate pattern of high relief (Fig. 5D), most conspicuous elements of notogastral integument are foveae or punctations; southern Australia...................................................................... 9

9 Lateral notogastralsetae arising frompits nolarger than TODO TODO TODO punctationsor foveae ( Fig.37 E View Fig ); epimeraIll-IV Ill-IVforma TODO TODO TODO prominent V-shapedfold overthe genital valves ( Fig.38 A View Fig ) ........................ P.obesa View in CoL n.sp.

--Lateral notogastral setae arising from pits much larger than punctations or small foveae ( Fig. 14B View Fig ); epimera Ill-IV form a weak V-shaped fold over the genital valves (Fig. 15A).................. P callitarsus View in CoL n.sp.

10 Notogaster punctate ( Fig. 14B View Fig ); or, if foveate, at least some foveae perforated by pores ( Fig. 39B View Fig ); or pores may lie in small foveae between irregular transverse ridges (Fig. 2A,D)........................................... 11

--Notogaster not punctate and without visible pores in foveae; notogaster with foveae or alveoli......................................................................................... 13

11 Notogaster with conspicuous broad foveae, or pores in small foveae (which may appear as punctations) lying between.irregular transverse ridges (Fig. 2A,D)............................................................................... 12

-- Notogaster withoutbroad foveae or transverse ridges, covered TODO TODO TODO TODO P callitarsus View in CoL n.sp.

12 Notogaster without transverse ridges( Fig.39 A,B View Fig ); insertion of seta ad3 level with anterior30 30%of anal valve valve( Fig.40 G View Fig )...... P propinqua P. Balogh View in CoL

--Notogasterwith irregular transverse ridges(Fig.2A,D) TODO TODO insertionof seta ad3 level with posterior 66%ofanal analvalve ....................... TODO P anica View in CoL n.sp.

13 Notogasterwith rounded foveae, ( Fig.31A View Fig ); oronly 2adanal TODO TODO TODO TODO TODO TODO TODO TODO P leei n.sp.

--Notogasterreticulate withangular(Fig Fig.8A View Fig )or irregular(Fig Fig. TODO TODO TODO TODO 25A)depressions;or3adanal setae on eachside ........................................................... 14

14 Each genital valve with 6 setae close to the inner lip and with another seta offset laterad (Fig. IB)...................................... P temperata P. Balogh

--Each genital valve without an offset seta, all 6-7 setae arranged in straight or arcuate file..................................................................................... 15

15 16 18

16 Notogasterwith fairlyuniform reticulate pattern( Figs 20F View Fig , TODO TODO TODO 18A); notogasterwith6pairs ofsetae .............................................................................. 17

--Notogaster with irregular pattern of reticulations and ridges (fig. lA in Hunt & Lee, 1995); notogaster with 5 pairs of setae P.semireticulata Hunt&Lee

17 3 pairs of notogastral setae inserted anterior to fissura ip P.kanangran.sp.

--Less than3 pairs of notogastral setae inserted anteriorto TODO TODO TODO TODO P.conundrum View in CoL n.sp.

18 Reticulatepattern acrossentire notogaster boldand regular TODO TODO TODO TODO TODO 20

--Reticulatepatternon centralpart of notogastervery verysubdued TODO TODO TODO fig.3G,I inHunt & Lee,1995);or boldbut notof regular TODO TODO TODO TODO TODO formacross entire notogaster(Fig Fig.27A).................. .................. ....................................... 19

19 Reticulate pattern on notogaster very subdued (Fig. 3G&I in Hunt & Lee, 1995); scalps firmly held on notogaster... P cryptoreticulata Hunt & Lee View in CoL

--Reticulate patternon notogaster boldbut irregular (Fig.27A); TODO TODO lateral notogastralsetae arise from small apophyses (Fig.27F); TODO TODO scalpsif presentloosely looselyattached ............................................................... P impedita View in CoL n.sp.

20 Notogastral setae long, coated with thick cerotegument ( Fig. 8G View Fig ); Western Australia ............................................................................... P bannisteri View in CoL n.sp.

--Notogastral setae short, not coated with thick cerotegument (Fig. llG); eastern Australia................................................................ P bithongabela View in CoL n.sp.

21 Sensillus with a rounded club-like head (Fig. 34E); 22

-- Sensillus trnncate ( Fig. 46B,C View Fig ); 2 pairs of anal setae; eastern mainland Australia........................................................................................ P truncata View in CoL n.sp.

22 Two pairsof anal setaeand 2pairs ofadanal setae ............................... TODO P nortoni View in CoL n.sp.

--Threepairs ofanal setae and 3pairs of adanal setae ............................ TODO P enigma n.sp.