Avima troglobia (Pinto-da-Rocha, 1996)
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publication ID |
https://dx.doi.org/10.3897/zse.98.78202 |
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publication LSID |
lsid:zoobank.org:pub:F6DA8918-82B8-49C5-BD64-FE152C5D71BE |
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persistent identifier |
https://treatment.plazi.org/id/FAF0DE94-A27C-53ED-B66E-26A527F0A79C |
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treatment provided by |
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scientific name |
Avima troglobia (Pinto-da-Rocha, 1996) |
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Avima troglobia (Pinto-da-Rocha, 1996)
Figs 4 View Figure 4 , 6A View Figure 6
Trinella troglobia Pinto-da-Rocha, 1996: 321, figs 4, 8, 15-16; Kury, 2003: 34.
Avima troglobia (Pinto-da-Rocha, 1996): Villarreal & Kury, 2009: 67.
Type material.
VENEZUELA• 1 ♂ holotype and 3 ♀ paratypes: Zulia, rio Socuy, cueva de Los Laureles; [10.751 -72.462]; 750 m a.s.l.; 20 Dec. 1990; J. Camacho and A. Viloria leg.; MBUZ• 2 ♀ paratypes; same data as previous [in the original label says Sierra de Perijá]; MZSP-1457 • paratype; same data as previous; 16 Dec.1992; P. Gnaspini and E. Trajano leg.; MZSP-14578• 2 ♀ paratypes; same data as previous, Cueva La Carlotica; 760 m a.s.l., 21 Dec.1990; J. Camacho, A. Viloria and T. Barros leg.; MBUZ• 1 ♀ paratype; same data as previous; MNRJ 5472!.
New records.
COLOMBIA• 3 ♀: La Guajira, Barrancas, corregimiento San Pedro, Las Pavas; Cueva, finca La Fortuna; 10°50'04.8"N, 72°40'34.4 ’’ W, [10.834667 -72.676222]; 1731 m a.s.l.; 8 May 2018; Miguel Gutiérrez leg.; ICN-Ao-1978• 1 ♂ 1 ♀; same data as previous; MNRJ 59052. First records for the country.
Complementary description.
Body. DS Epsilon type 1. Ocularium low, domed, smooth, and without eyes (Fig. 4D, F View Figure 4 ) Mesotergum divided into four ill-defined areas, smooth; (Fig. 4A-C View Figure 4 ). Areas I-IV with a pair of minute paramedian granules; area I divided into two halves; area II-IV undivided (Fig. 4A, D View Figure 4 ). Posterior border of scutum substraight. Free tergites I-III with some tubercles. Venter. Stigmatic area with a few granules. Stigmata large, oval and oblique (Fig. 4E View Figure 4 ). Legs. Increasing in thickness from leg I to leg IV, but legs III and IV at least twice as thick as legs I and II, unarmed. Leg I filiform. Leg IV with darker coloration than the others. Fe IV length four times DS length (Fig. 4D View Figure 4 ). Penis. LP small and depressed, crescent-shaped, with anterolateral rounded corners apically pointed (Fig. 4G, I View Figure 4 ). Hammer (malleus) cylindrical, carrying MS-A-B (two pairs of MS-A and one pair of MS-B, all branched) (Fig. 4G, I View Figure 4 ); MS-C absent; two pairs of short MS-D located in a keel between the LP and the base of the stylus (Fig. 4G View Figure 4 ). MS-E1 large and triffid, MS-E2 short and conical, located slightly distal to MS-E1 on the ventral side of the LP (Fig. 4G, I View Figure 4 ). Stylus straight, elongated, surpassing the LP (Fig. 4G, I View Figure 4 ), with the tip ventrally curved (Fig. 4H View Figure 4 ) and a rectangular dorsal keel (Fig. 4G View Figure 4 ). Coloration (in alcohol). Carapace Brilliant Yellow (83) (anterior border) and Brilliant Orange Yellow (67) (posterior border and laterals). Free tergites and chelicerae Brilliant Orange Yellow (67). Pedipalps and legs I-III Brilliant Yellow (83). Leg IV Deep Orange Yellow (69). Sexual dimorphism. Chelicerae hypertelic in males.
Natural history.
A. troglobia was collected exclusively in a cave and shows troglomorphisms (e.g., depigmentation, lack of eyes (Fig. 4F View Figure 4 )), in the same way as the individuals from the Venezuelan caves, corroborating the idea that it is an obligatory cave-dwelling species (Pinto-da-Rocha, 1996).
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