Encentra longipes Redtenbacher, 1892

Rengifo, Juliana Chamorro, 2009, Redescription of two species of the genera Encentra and Tabaria (Tettigoniidae: Mecopodinae) of Colombia, Zootaxa 2003, pp. 46-52 : 47-48

Encentra longipes Redtenbacher, 1892

( Fig. 1 )

Type: 1 female, Medellín, Colombia.

Location of type: Naturhistorisches Museum Wien ( NMW).

Newly described specimen: 1 male, (MUSENUV- 21964) J. Chamorro, 01/10/2006. Valle del Cauca, Bitaco, Chicoral, 1800 m.

Other specimens: 1 female (MUSENUV-20776) H. Berrio, 01/01/1997. Valle del Cauca, Yotoco, Bosque de Yotoco, 1500 m.; 1 female (MUSENUV-21964) J. Chamorro, 01/05/2006. Valle del Cauca, Bitaco, Chicoral, 1800 m.; 1 female (ICN-MHNOR00954) F. Vargas L. Castaño and F. Montealegre, 22/05/2000. Cauca, El Tambo, Parque Natural Munchique, 1840 m.; 1 male (ICN-MHNOR00955) F. Vargas L. Castaño and F. Montealegre, 26/05/2000. Cauca, El Tambo, Parque Natural Munchique, 1840 m.

Diagnosis. Redescription. Female and male. Head. Face twice as long as wide ( Fig. 1 a); fastigium joint to frons, thin, ending in two separated rounded processes slightly inclined (not parallel). Eyes rounded, laterally protruding. Bases of antennae broad and widely separated from each other. Vertex rounded. Thorax. Pronotum surface rough ( Fig. 1 b,c); anterior margin of the prozona with three protruding structures: one median tubercle and a spine on each side; posterior part of the mesozona narrowed to half of the length of its anterior margin. Prozona clearly separated from the mesozona, the anterior part of the latter rising in two pairs of spines on each side, latero-frontally and transversally organized, the posterior area is smoothly elevated. Metazona: posterior margin truncate, with a thin median tubercle, lateral sides medially inflated, ending in two pairs of spines on each side, oriented laterally and with a thin tubercle in the same direction, but located more ventrally. Pleura under the mesozona with one spine. Meso- and metasternum with two spines on each side. Legs. Coxae of all legs with a ventral tubercle. Hind legs very elongated, the femur in males 2.3 times and in females 1.7 times longer than the total body length. Femur with 27 curved dorsal spines in males and 29 in females, ventrally with 22 spines in males and 21 in females, increasing in size from the anterior to the posterior end ( Fig. 1 d). Genicular lobes of all femora ending in a prominent spine. Abdomen. Tergites 1 to 5 in males and 1 to 6 in females each with a median spine, decreasing in size toward the posterior end, tergite 6 in males and 7 in females with only a tiny tubercle. Genitalia. Male. Cercus long and falciform ( Fig. 1 e), finishing in an acute tip. Subgenital plate broad in all its length, with a broad emargination of almost 2/5 of the total width ( Fig 1 f). Female. Subgenital plate triangular, acuminate, and carinate; ovipositor gradually curved and acuminate, approximately 0.6 times the total length of the body.

Coloration. In life ( Fig. 4). General coloration olive-green. Face olive-green, head laterally and dorsomedially ferruginous. Antennae, legs and abdominal spines ferruginous. Spines of hind femur with black bases. Ovipositor basally with some black spots. Dorsal part of abdomen with ferruginous marks. In male, ventral part of abdomen with small yellow dots. See more details on photographs in Orthoptera Species File.

Measurements: Distribution: Western part of the country, Medellín, Valle del Cauca and Cauca ( Fig. 3 ). 1500–1840 m. The two recently collected specimens were found in the undergrowth of a premontane humid forest near a small creek, walking very slowly among little ferns.

Figures

FIGURE 1. Encentra longipes. a. Face frontal view; b. Pronotum dorsal view; c. Pronotum lateral view d. Hind femur lateral view; e. Cercus dorsal view; f. subgenital plate ventral view.

FIGURE 3. Geographical distribution of Encentra longipes ˔ and Tabaria opiliodes ●.