genera, Cook, 1899

Teruel, Rolando, 2018, Two new genera and a new species of schizomids (Arachnida: Schizomida) from Isla de Pinos, Cuba, Ecologica Montenegrina 19, pp. 33-49 : 46-47

publication ID

https://doi.org/ 10.37828/em.2018.19.4

publication LSID

urn:lsid:zoobank.org:pub:278E56BF-2EB3-4196-8382-B43DFCF3795C

DOI

https://doi.org/10.5281/zenodo.8056118

persistent identifier

https://treatment.plazi.org/id/46668792-FFEF-DF3F-D6F1-D042FA67466D

treatment provided by

Felipe

scientific name

genera
status

 

Key to the schizomid genera View in CoL of Cuba

1 Leg IV femur with anterodorsal margin angled at 65–83° and sexually dimorphic: angle always much more acute in male .....................................................................................................................2

- Leg IV femur with anterodorsal margin angled at approximately 90° and sexually non- dimorphic: angle essentially identical in both sexes...............................................................................................3

2 Leg IV femur with anterodorsal margin angled at 65–70°. Tergite I with posterior margin conspicuously notched medially. Male: flagellum with more than 40 setae, but lacking dm 4. Female: flagellum with v m 2 setae; spermathecae with median lobes clearly longer than lateral lobes, both pairs long, slender and match-shaped to subcylindrical.................................................. Reddellzomus View in CoL

- Leg IV femur with anterodorsal margin angled at 70–83°. Tergite I with posterior margin not conspicuously notched. Male: flagellum with standard setation, including dm 4. Female: flagellum lacking v m 2 setae; spermathecae with median and lateral lobes similarly sized, short, thick and pyriform. ................................................................................................................... Heterocubazomus View in CoL

3 Tergite I lacking anterior microsetae.....................................................................................................4

- Tergite I with 2–3 pairs of anterior microsetae (sometimes asymmetric) .............................................5

4 Male: flagellum narrowly trident-shaped in dorsal view: bulb with three very long, narrow and essentially parallel lobes; dm 4 seta located basally to medially on bulb. Female: spermathecae with two pairs of moderately long and slender lobes ......................................................... Cokendolpherius View in CoL

- Male: flagellum bulb broadly subpentagonal in lateral view; dm 4 seta located apically on bulb. Female: spermathecae with three pairs of short and thick lobes ......................... Siguanesiotes View in CoL gen. n.

5 Habitus troglomorphic: coloration pale yellowish, with pedipalps light orange, eyespots absent, walking legs conspicuously attenuate. Male: abdominal segments IX–XII with highly modified macrosetae (enlarged, much thickened and sinuose to curved downwards)........................................6

- Habitus non-troglomorphic: coloration uniformly greenish or yellowish brown to blackish green, usually with pedipalps reddish, eyespots usually present, legs not especially attenuate. Male: abdominal segments IX–XII with standard setation, at most only with the dorsoposterior pair of macrosetae of XII slightly modified (thickened and angled to curved downwards)............................7

6 Pedipalp trochanter lacking internal spur. Male: flagellum in dorsal view with pedicel long and bulb lanceolate, dm 1 seta located medially on pedicel. Female: spermathecae with median and lateral lobes cylindrical, basally fused into a V-shape ........................................................ Cubacanthozomus View in CoL

- Pedipalp trochanter with internal spur. Male: flagellum in dorsal view with pedicel very short and bulb round, dm 1 seta located basally on bulb. Female: spermathecae with median and lateral lobes conical, not fused ...................................................................................................... Troglocubazomus View in CoL

7 Tergite II with 4–8 setae........................................................................................................................8

- Tergite II with two setae........................................................................................................................9

8 Male: pedipalp patella conspicuously reduced, being always the shortest segment in heteromorphics and much shorter than both femur and tibia in homomorphics, patella ventrodistally with a bunch of very strong spiniform macrosetae; abdominal segment XII lacking posterodorsal process; bulb of flagellum lanceolate, dorsally with an oval, dome-like protuberance, usually flanked laterally by two small depressions ............................................................................................... Antillostenochrus View in CoL

- Male: pedipalp patella not reduced, actually the longest pedipalp segment, patella ventrodistally with two parallel rows of spiniform macrosetae; abdominal segment XII with posterodorsal process large and massive; bulb of flagellum broadly spade-shaped, dorsally with a dumbbell-like protuberance, flaked basally and distally by large, subrectangular depressions................................... Pinero View in CoL gen. n.

9 Male: flagellum bulb in dorsal view hexagonal, with a large, circular median depression. Female: spermathecae with median and lateral lobes heavily sclerotized, club-shaped and perforate by large, conspicuous glandular pores ................................................................................................ Stenochrus View in CoL

- Male: flagellum bulb in dorsal view variable, but never hexagonal nor with a large, circular median depression. Female: spermathecae with median and lateral lobes variable, but never markedly sclerotized (except occasionally for apical bulbs, when present) and smooth or perforate by small, inconspicuous glandular pores ...........................................................................................................10

10 Metapeltidium fully divided into two separate plates. Female: spermathecae with median and lateral lobes of each side fused basally into a Y-shape and lacking apical bulbs; flagellum with three flagellomeres and two annuli .............................................................................................. Cubazomus View in CoL

- Metapeltidium entire (sometimes an incomplete, pale median line may occur, which is never a true plate division). Female: spermathecae with median and lateral lobes of each side usually not fused, if so, then also at least one pair with well-defined apical bulbs and flagellum with four flagellomeres and three annuli ...........................................................................................................11

11 Male: abdominal segment XII with posterodorsal process minute and pointed; heteromorphic pedipalp tibia ventrodistally with a very large setiferous tubercle (highly reduced in homomorphic), bearing a very thick spiniform macroseta opposed to tarsus. Female: spermathecae with median and lateral lobes cylindrical and lacking apical bulbs.............................................................. Guanazomus View in CoL

- Male: abdominal segment XII with posterodorsal process variable, but never minute and pointed; heteromorphic pedipalp tibia variable ventrodistally, but never with such large setiferous tubercle. Female: spermathecae with median and lateral lobes either match-shaped or at least one pair with well-defined apical bulbs ...................................................................................................................12

10 Cheliceral movable finger ventroexternally with a crenulate lamella. Male: abdominal segment XII with posterodorsal process weak; flagellum bulb dorsally with a large distal depression flanked basally by a single, broadly Y-shaped protuberance. Female: tergites III–VII with 4–16 setae; spermathecae with median and lateral lobes match-shaped.......................................... Dumitrescoella

- Cheliceral movable finger ventroexternally with several teeth. Male: abdominal segment XII with posterodorsal process moderate to very strong; flagellum bulb dorsally lacking a distal depression and with a transverse pair of conical to round protuberances. Female: tergites III–VII with only two setae; spermathecae with median and lateral lobes variable, but at least one pair with well-defined apical bulbs.......................................................................................................................... Rowlandius View in CoL

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