Hogna maderiana (Walckenaer, 1837)

Crespo, Luis C., Silva, Isamberto, Enguidanos, Alba, Cardoso, Pedro & Arnedo, Miquel, 2022, Island hoppers: Integrative taxonomic revision of Hogna wolf spiders (Araneae, Lycosidae) endemic to the Madeira islands with description of a new species, ZooKeys 1086, pp. 84-135 : 84

publication ID

https://dx.doi.org/10.3897/zookeys.1086.68015

publication LSID

lsid:zoobank.org:pub:89728BCE-242A-4936-9095-E9B544F8B9F7

persistent identifier

https://treatment.plazi.org/id/42E4561E-DAC1-54CF-8A4A-4BF65EA2FA6B

treatment provided by

ZooKeys by Pensoft

scientific name

Hogna maderiana (Walckenaer, 1837)
status

 

Hogna maderiana (Walckenaer, 1837)

Figures 21 View Figure 21 , 22 View Figure 22 , 23 View Figure 23

Lycosa tarentuloides maderiana Walckenaer, 1837: 291 (Df).

Lycosa tarentuloides maderiana Blackwall, 1857a: 282 (Dm).

Tarentula maderiana Simon, 1864: 350.

Lycosa maderiana Simon, 1898: 346.

Trochosa maderiana Kulczynski, 1899: 426, pl. 9, fig. 119-120 (mf).

Isohogna maderiana Roewer, 1955: 241.

Isohogna maderiana Roewer, 1960: 569, fig. 319a-c (mf).

Hogna schmitzi Wunderlich, 1992: 462, fig. 721-723 (Dmf). Holotype ♂ examined, Porto Santo, 8-11.VII.1983; leg. K. Groh, stored at SMF, collection number 37639. New synonymy.

Types.

Holotype: Not examined, supposed lost.

Material examined.

Ilheu de Ferro • 1 ♂ and 1 ♀ ( SMF37637 View Materials ), 3.VII.1983, leg. K. Groh., 1 ♂ (CRBALC0013), 33.03698°N, 16.40814°W, 6.IV.2011, hand collecting, leg. I. Silva. Porto Santo • Pico Branco, 33.09366°N, 16.30776°W, 1 ♂ (CRBALC0734) and 2 ♀♀ (CRBALC0704, CRBALC0717), 10.IV.2018, hand collecting, leg. L. Crespo & A. Bellvert; Pico do Facho, 1 ♂ ( SMF63869 View Materials ), 31.X.1972; (unknown location), 1 ♀ (MNHNP AR16184), 27.III.1959, leg. A. Vandel, 2 ♀♀ and 2 juveniles (FMNHhttp://id.luomus.fi/KN.23945), 4.X.1959, 1 ♀ ( SMF34482 View Materials ), VII.1983, 1 ♀ ( SMF36760 View Materials ), 26.X.1985, leg. G. Schmidt, 1 ♀ ( SMF37636 View Materials ) and 2 juveniles ( SMF37638 View Materials ), leg. K. Groh, 8 ♂♂ and 11 ♀♀ ( NHM, in ethanol), VI.1962, leg. S.W. Bristowe, 1 ♀ ( NHM), VII.1963, leg. B.M. Cliffton, 2 ♂♂ and 2 ♀♀ ( NHM 1892.7.9.12.17), leg. W.R.O. Grant, 1 ♀ ( NHM), 12.VI.1964, 1 ♂ and 1 ♀ ( NHM, mounted dry) GoogleMaps .

Diagnosis.

Hogna maderiana can be distinguished from all other Madeiran Hogna by a combination of the following characters: the large size (prosoma length > 10 mm), the presence of conspicuous orange setae (Fig. 27A View Figure 27 ), and its genitalia. In males by a combination of a smoothly curved tip of the embolus, a long, blunt ventral spur, and a deeper tegular concavity (Fig. 21A-D View Figure 21 ). In females by epigyne with median septum more than twice as long as wide (at posterior transverse part) (Fig. 21E, F View Figure 21 ).

Redescription.

Male (CRBALC0734): (Fig. 21D, E View Figure 21 ). Total length: 19.5; carapace: 11.9 long, 8.9 wide.

Colour: carapace brown, with short black setae covering flanks, short white setae present posteriorly, anteriorly and laterally, long black setae are present anteriorly or scattered around median band; median yellow longitudinal band present but faint, covered with short white setae and scattered long black setae, anteriorly broadened; marginal bands indistinct, made apparent only by the cover of short white setae, long black setae also present laterally; four darker lateral bands visible, but without striae. Chelicerae black, apically dark brown, covered in black and yellow setae. Gnathocoxae very dark orange-brown, labium blackish; sternum brown, medially lighter, but without any stripe. Legs yellow to orange-brown, without annulations, with anterior tibiae, all metatarsi and tarsi dark brown, and covered dorsally with yellow setae (probably orange in living or fresh specimen). Pedipalpal femur, patella, and tibia as legs, cymbium darker, yellow setae present in all segments except femur. Abdomen with a pair of anterolateral black patches, extending laterally into grey flanks; a median yellow lanceolate patch is bordered by few whitish patches; venter greyish, darker near spinnerets.

Eyes: MOQ: MW = 0.7 PW, MW = 1.2 LMP, MW = 1.2 AW; Cl = 0.5 DAME. Anterior eye row slightly procurved.

Legs: Measurements: Leg I: 36.7, TiI: 8.85; Leg IV: 37.3, TiIV: 8.1; TiIL/D: 4.4. Spination of Leg I: FeI: d1.1.0, p0.0.2; TiI: p1.0.1, r1.0.0, v2s.2s.2s; MtI: p0.0.1, r0.0.1, v2s.2s.1s. MtI with very dense scopulae.

Pedipalp: cymbium with one prolateral spine and six dark, stout, macrosetae at tip, Fe with two dorsal and an apical row of four spines, Pa with one prolateral spine, Ti with one dorsoprolateral and one prolateral spines. Tegular apophysis with ventral spur long, blunt, with a straight ridge leading to a wide apical point (Fig. 21A, B View Figure 21 ); terminal apophysis blade-shaped with sharp end (Fig. 21A-D View Figure 21 ); embolus long, with tip directed anterolaterally (Fig. 21A-D View Figure 21 ); palea small (Fig. 21A View Figure 21 ).

Female (CRBALC0717): (Fig. 21E, F View Figure 21 ). Total length 23.5; carapace: 11.3 long, 8.3 wide.

Colour: overall as in male, with the following differences: median yellow longitudinal band in prosoma clear. Cheliceral setae black. Legs with few faint greyish patches in femora. Abdominal pattern overall greyish, darker near spinnerets, with patches unapparent.

Eyes: MOQ: MW = 0.7 PW, MW = 1.1 LMP, MW = 1.2 AW; Cl = 0.4 DAME. Anterior eye row slightly procurved.

Legs: Measurements: Leg I: 30.3, TiI: 7.2; Leg IV: 33.9, TiIV: 7.4; TiIL/D: 3.5. Spination of Leg I: FeI: d1.1.0, p0.0.2; TiI: 0.1s.0, v2s.2s.2s; MtI: p0.0.1, r0.0.1, v2l.2s.1s. MtI with very dense scopulae.

Epigyne: anterior pockets touching, short, with lateral borders parallel (Fig. 21E View Figure 21 ); anterior pocket cavities deep; median septum with narrow posterior transverse part (Fig. 21E View Figure 21 ); spermathecae elongated (Fig. 21F View Figure 21 ); copulatory ducts with very small diverticulum ventrally (Fig. 21F View Figure 21 ); fertilisation ducts emerging at the base of copulatory duct (Fig. 21F View Figure 21 ).

Intraspecific variation.

Carapace length, males: 11.9-14.4, females: 11.0-11.5.

Distribution.

This species is known from the island of Porto Santo and one of its surrounding islets, Ilhéu de Ferro (Fig. 23 View Figure 23 ).

Ecology.

Hogna maderiana can be found in open habitats, such as grasslands, shrubland or sand banks. Very common even in relatively disturbed habitats across Porto Santo.

Conservation status.

Hogna maderiana was assessed according to the IUCN Red List criteria as H. schmitzi ( Cardoso et al. 2018d), with the status of Least Concern.

Comments.

As mentioned above (see remarks on H. blackwalli ), the large specimens with striking orange coloration in legs from Porto Santo island and its neighbouring islet Ilhéu de Ferro were known to pioneer arachnologists. The original, somewhat obscure, description by Walckenaer described a 2.5 cm spider ("1 pouce") with reddish brown legs ("Pattes rouges, lavées de brun en dessus ( …)”), from the island of Madeira ("Ile de Madère”). After this, Blackwall was the first to provide a clear description of this taxon, while at the same time stating that it was collected in the island of Porto Santo, not Madeira. Subsequent authors reported additional material from either Porto Santo or Ilhéu de Ferro ( Johnson 1863; Kulczynski 1899). Wunderlich considered H. blackwalli a junior synonymy of H. maderiana based on the wrong assumption that previous authors repeatedly misidentified H. maderiana from Porto Santo, assigning H. maderiana to the large species with annulated legs from Madeira island. Following synonymy, Wunderlich himself named the large species from Porto Santo as H. schmitzi . As a matter of fact, the only indication of the presence of a large spider with reddish leg coloration in Madeira island is Walckenaer’s original description. Unfortunately, Walckenaer’s type seems to be lost. However, Simon most likely examined it because he stated that " L. maderiana Walck. est, en grande partie, revêtu, en dessus, de pubescence courte d’un beau rouge orange." ( Simon 1898: 332). The two large species are easy to distinguish, the only misidentification between them being made by Thorell, who identified H. blackwalli from Madeira as Trochosa maderiana ( Thorell 1875). We argue that the presence of H. maderiana in the island of Madeira reported in Walckenaer’s original description was likely a labelling mistake or a misinterpretation, and probably referred to the archipelago.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Lycosidae

Genus

Hogna

Loc

Hogna maderiana (Walckenaer, 1837)

Crespo, Luis C., Silva, Isamberto, Enguidanos, Alba, Cardoso, Pedro & Arnedo, Miquel 2022
2022
Loc

Hogna schmitzi

Wunderlich 1992
1992
Loc

Isohogna maderiana

Roewer 1954
1954
Loc

Isohogna maderiana

Roewer 1954
1954
Loc

Lycosa tarentuloides maderiana

Walckenaer 1837
1837
Loc

Lycosa tarentuloides maderiana

Walckenaer 1837
1837
Loc

Lycosa maderiana

Walckenaer 1837
1837
Loc

Tarentula maderiana

Sundevall 1833
1833