Gippsicola Hogg, 1900

Giroti, André Marsola & Brescovit, Antonio Domingos, 2017, Revision of the spider genus Gippsicola Hogg, 1900 (Araneae: Segestriidae), Zootaxa 4227 (3), pp. 390-406: 391-392

publication ID

https://doi.org/10.11646/zootaxa.4227.3.6

publication LSID

lsid:zoobank.org:pub:7A098BE2-2D7A-4386-B01F-9E831EB04EE1

persistent identifier

http://treatment.plazi.org/id/03892A0D-FFEB-A207-24AD-91B04B22DEB4

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Plazi

scientific name

Gippsicola Hogg, 1900
status

 

Genus Gippsicola Hogg, 1900  

Gippsicola Hogg, 1900: 85   (Type species by monotypy: Gippsicola raleighi Hogg, 1900   ), in Oonopidae   .— Davies (1985) (gen. reval.).— Forster & Platnick (1985) —World Spider Catalog (2016).

Segestria   — Simon (1908: 380) (Syn. and transf. to Dysderidae   ).— Rainbow (1911: 135) in Segestriinae.— Roewer (1942: 310).— Bonnet (1958: 4004).

Note. Forster & Platnick (1985: 213, 227, fig. 827) presented a SEM figure of a male palp, identified as a Gippsicola   specimen. During our study, we examined a male specimen from New Zealand which presents the same palp morphology of the one presented by the latter authors. After the examination of the female holotype and some non-type male and female specimens from New Zealand, we concluded that this specimen is an undescribed male of Segestria saeva Walckenaer, 1837   . Further, we discuss its possible taxonomic position.

Diagnosis. The genus Gippsicola   differ from the other Segestriidae   genera, except Segestria   , by the presence of a strongly recurved posterior eye row ( Figs 1 View FIGURE 1 A –B), elongated labium, with both margins almost parallel ( Figs 1 View FIGURE 1 C, 6D; Giroti & Brescovit 2015, fig. 9B), and three promarginal and two retromarginal cheliceral teeth, all triagular-shaped ( Figs 1 View FIGURE 1 D, G). It is distinguished from Segestria   (see Giroti & Brescovit 2011, figs 15–23), by the male palp with a cymbium as wide as long, with the prolateral region conical and with a dorso-prolateral chemosensory patch ( Figs 3 View FIGURE 3 A –B, D, 5C –D, 7A –B, 9A –B, 10C –D), and females with an unilobed anterior receptaculum, strongly sclerotized, and with isolated glandular ducts ( Figs 3 View FIGURE 3 C, E –G, 7C –E, 9C –E).

Composition/Species. Gippsicola raleighi Hogg, 1900   ; Gippsicola robusta   n. sp.; Gippsicola lineata   n. sp.; Gippsicola minuta   n. sp.

Description. Medium-sized synspermiata spiders. Total length 3.25–17.48, carapace 1.45–7.76 long, 1.2–5.44 wide. Carapace and chelicerae ranging from light orange to dark reddish brown; cephalic region with a smooth dark pattern of longitudinal irregular lines, and thoracic region with dark transverse bands, related to the internal muscles of the prosoma. Six eyes, anterior median eyes lost, bounded by dark outlines ( Figs 5 View FIGURE 5 A –B, 6A –E, 8A –D, 10A –B). Carapace oblong with cephalic region narrower than thoracic, coated with light and fine setae, and with sparse longer dark setae mainly on the cephalic region ( Figs 1 View FIGURE 1 A, 5A, 6A, C, E, 8A, C, 10A); females with cephalic region elevated. Labium: longer than wide, 2/3 of the endites length, with anterior margin convex and posterior margin concave, separated from the sternum by a partially membranous suture ( Fig. 1 View FIGURE 1 C; Giroti & Brescovit 2015, fig. 9B). Endites: long, with a median oblique depression; pointed apex; presence of an internal depression, where the lateral margin of the labium fits and an elbow-like basal portion ( Figs 1 View FIGURE 1 C, 6D; Giroti & Brescovit 2015, fig. 9B); serrula with one line of teeth ( Fig. 1 View FIGURE 1 E); apical tuft with flattened setae, with ramifications on both sides ( Fig. 1 View FIGURE 1 E –F); white region restrict to the pointed apex ( Fig. 1 View FIGURE 1 C; Giroti & Brescovit 2015, fig. 9B). Sternum: longer than wide, with anterior margin truncated and convex ( Figs 5 View FIGURE 5 B, 6B, D, 8B, D, 10B). Chelicerae: robust ( Figs 1 View FIGURE 1 D, 6A –D, 8A –D), with frontal margin wavy, in lateral view. Male palp: tibiae usually cylindrical or swollen; cymbium with apical thickened setae ( Figs 7 View FIGURE 7 A, 10C –E); piriform or sub-rectangular bulb, with an abrupt transition to the embolus; sperm duct with one ( Figs 5 View FIGURE 5 C –D, 10C –D) or one and a half ( Figs 7 View FIGURE 7 A –B, 9A –B) convolutions; embolus usually tubular, with a flattened tip ( Figs 3 View FIGURE 3 A –B, 5C –D, 7A –B, 9A –B, 10C –D). Female palp: tibiae with two distal ventro-prolateral spines; tarsus with one or two prolateral spines, surrounded almost entirely by tactile setae (see Ramírez (2014: 122, 124, fig. 84A), with the ventral ones stronger and gradually decreasing in size in distal direction; terminal claw without tooth. Legs: robust and covered with setae; dense scopula of tenent setae (see Ramírez (2004: 122, 131, fig. 91C)) (reduced to a few setae in G. minuta   n. sp.) on ventral and ventro-prolateral region of tarsi, metatarsi, and distal region of the tibia, of legs I –II, and only tarsi and metatarsi of leg III ( Figs 4 View FIGURE 4 A – C); legs IV with tarsi and distal region of metatarsi with thickened and serrated ventral setae; metatarsi IV with a ventro-retrolateral preening comb conspicuous, with 5–12 macrosetae, in a diagonal line, compared to the metatarsus-tarsus articulation ( Fig. 4 View FIGURE 4 G); macrosetae almost with the same size in all legs and position almost the same between species. Tarsal organ exposed with rounded edges, and peripherical ridges, with one rimmed sensilla ( Figs 4 View FIGURE 4 D –E). Trichobothria on the dorsal subdistal region of metatarsi and tibia I-IV; trichobothrial bases without a well-delimitation between proximal and distal plate, and with a transverse ridge curved inwards ( Fig. 4 View FIGURE 4 H). Three tarsal claws, superior claws pectinated, inferior one with one small tooth ( Fig. 4 View FIGURE 4 F). Abdomen: longer than wide, uniformly covered with pale hair, longer than wide, with the genital plate weakly distinct in females ( Figs 5 View FIGURE 5 A –B, 6A –D, 8A –D, 10A –B); ventral anterior sigillae conspicuously distinct, with slit sensilla. Spinnerets: ALS with three segments, the basal one crossed by a diagonal membranous area ( Fig. 2 View FIGURE 2 A), and one MAP spigot with 14–15 PI, both fields separated from each other ( Fig. 2 View FIGURE 2 B); PMS with one mAP and four AC spigots ( Fig. 2 View FIGURE 2 C); PLS with eight AC spigots, and the distal lateral sclerite strongly sclerotized ( Fig. 6 View FIGURE 6 F), with thickened setae ( Figs 2 View FIGURE 2 D –E). Colulus conical and pilose ( Fig. 2 View FIGURE 2 A). Internal female genitalia: anterior receptaculum without a well-delimited plate of glandular ducts, and with ventral entapophyses; interpulmonary fold strongly and entirely sclerotized ( Figs 3 View FIGURE 3 C, E –G); posterior receptaculum membranous, with glandular ducts grouped in rounded sclerotized plates in the membranous cuticle ( Figs 3 View FIGURE 3 C, E, H).

PMS

Prirodonamen Muzej Skopje

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Segestriidae

Loc

Gippsicola Hogg, 1900

Giroti, André Marsola & Brescovit, Antonio Domingos 2017
2017
Loc

Segestria

Bonnet 1958: 4004
Roewer 1942: 310
Rainbow 1911: 135
Simon 1908: 380
1908
Loc

Gippsicola

Hogg 1900: 85
1900