Scapteriscus rodriguezi Cadena-Castañeda, 2011

Cadena-Castañeda, Oscar J., 2011, Two new species of mole crickets (Orthoptera: Gryllotalpidae: Scapteriscinae) from the Colombian Amazon and Orinoquia rainforests, Zootaxa 3126, pp. 62-68 : 66-67

Scapteriscus rodriguezi Cadena-Castañeda n. sp.

( Fig. 3 )

Diagnosis. Small mole crickets, with elongate oval pronotum (L/ W 1.27). Interdactyl distance moderately separated (0.25 mm). Trochanter blade moderately short, about 0.95 mm in length. Ocelli moderately large, subcircular (0.40 mm). Interocellar distance ~ 0.95 mm. Similar to S. didactyloides , differing primarily in the ocelli form and coloration of the hind femur, of Colombian S. parvipennis in length of wings (exceeding the length of the abdomen) and interdactyl distance/ trochanter blade length (0.26 mm), of some small and medium S. tenuis in the trochanter blade length and shape.

Holotype. Ƥ Colombia, Amazonas, Leticia. Comunidad Monifue Amena, 70 m a.s.l., 30 September of 2004. Col: M. Cubillos. Museo Javeriano de Historia Natural Lorenzo Uribe Uribe S.J. ( MPUJ), MPUJ-ORT 2031.

Description. Head. Ocelli prominent, subcircular; length of ocellus ~ 0.4 mm. Interocellar distance ~ 0.95 mm, or about 2.3x length of ocellus. Ocellus separated from compound eye by 0.25 mm, or subequal 0.8x to length of ocellus. Thorax. Length of pronotum 6.8 mm; L/W pronotum 1.27. Forelegs: dorsal margin of tibia overlapping tympanum, concealing about 27% of tympanum as seen from above. Interdactyl distance 0.25 mm. Trochanter 1.8x longer than broad; dorsal margin weakly convex, ventral margin straight; apex rounded. Blade of trochanter 0.95 mm long, extending nearly 3/5 as long as short length of trochanter. Tegmen. Tegmen/femur ratio 0.78.

Color Patterns. General color dark brown. Head with dark brown patch from occiput to clypeus. Occiput with two light bands from posterior margin to latero-medial area of eyes. Pronotum without mottling. Hindlegs as in figure 3.

Measurements. (mm). Ocellar length: 0.4, Interocellar distance: 0.95, interocular distance: 1.7, ocular-ocellar distance: 0.25, interdactyl distance: 0.25, length trochanter blade: 0.95, length pronotum: 6.8, width pronotum: 5.35; total length: 22.6.

Morphometric ratios. Ocellar length/ interocellar distance: 0.42, ocular-ocellar distance/ interocellar distance: 0.26, interdactyl distance/ trochanter blade length: 0.26, interdactyl distance/ interocular distance: 0.14, interdactyl distance/ interocellar distance: 0.26, ocular-ocellar distance/ interocular distance: 0.14, interocellar distance/ interocular distance: 0.55, interocellar distance/ trochanter blade length: 1.

Distribution. Only known from the Colombian Amazon region.

Etymology. Dedicated to the companion Fernando Rodriguez of the Grupo de Investigación en Artrópodos “Kumangui”.

Figures

FIGURE 3. S. rodriguezi n. sp. A. habitus lateral view, B. habitus dorsal view, C. hind leg, lateral view, D. left foretibia, lateral view, E. left tympanum, lateral view, F. left foretrochanter, lateral view, G. compoun eyes and ocelli, frontal view.