Colomboniscus undefined-2

Schmidt, Christian, 2007, Revision of the Neotropical Scleropactidae (Crustacea: Oniscidea), Zoological Journal of the Linnean Society 151, pp. 1-339 : 23

COLOMBONISCUS SPECIES 2

Colomboniscus regressus Vandel, 1972 pro parte.

Material examined

One ♀ [montane forest at Tibabitá, approx. 11 km north of Bogotá (Calle 80), altitude 2600–2800 m, moss on/at (?) trees, leg. Sturm, 19 July 1967; CV, syntype of Colomboniscus regressus Vandel, 1972 ] .

Description ( Fig. 37 )

Female 3.6 mm. Tergites hirsute, with only some patches of very weak, reticulate pale brown pigment, otherwise yellowish white (specimen preserved in alcohol). Cephalothorax slightly more pigmented, with distinctly visible muscle insertion spots. Eyes absent, but with a concentration of pigment in the place where eyes usually are. Frontal shield of cephalothorax in frontal view medially straight, in dorsal view approximately straight over most of its width. The frontal shield also covers a larger portion of the vertex than in C. regressus . Second antenna with three-jointed flagellum; the distal two articles are delimited only by a weak suture. Apical cone as long as the distal two flagellar articles. Pleotelson short, with nearly straight sides, medially curved. Uropod exopodites and endopodites ending at the same level.

Habitat

Montane forest at 2600–2800 m, in moss.

Remark

Different from the other syntypes in the shape of the frontal shield of the cephalothorax. As only a single female specimen is available, the new species is not named.

Figures

Figure 37. Colomboniscus species 2: ♀, 3.6 mm, cephalothorax 1.03 mm wide, Colombia, montane forest at Tibabitá, c. 11 km north of Bogotá, altitude 2600–2800 m, leg. H. Sturm, 10 July 1967, MNHN).