Orthoptera Species File (Version 5.0/5.0)
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Supplementary information for


Description

Content:  Head. Eyes globose, prominent, protrusive, situated high on face about one eye diameter above genal suture. Interocular width equal to one eye diameter. Vertexial fastigium laterally compressed, anteriorly bluntly rounded, dorsally sucate. Frons weakly inflated in lateral aspect. Frontal fastigium trigonal in frontal aspect; apex bluntly rounded, nearly in contact with vertexial fastigium (Fig. 1).

Thorax. Lateral carinae of pronotal disc strongly dentate, elevated, and dorsolaterally flared; in dorsal view, dentition of lateral carinae consisting of 3 large thornlike spines: anterior most spine short, stout, directed anteriorly; second spine 1.3X longer than spine 1, directed posterolaterally; spine 3 very prominent, arising just posterior to midpoint of lateral carina, 3.0X longer than spine 1, directed dorsolaterally, its trailing edge studded with a series of about 6 sharp, narrow spines. Pronotal disc divided by a shallow anterior sulcus between spines 1 and 2 and across posterior quadrant by a deep posterior sulcus. Posterior margin disc truncate, armed with one median and two small lateral nodes (Fig. 2). Lateral lobe of pronotum deeper than long (Fig. 3). Meso and metasternal lobes apically arcuate, bluntly pointed; mesosternal lobes not extending to anterior margin of metasternum.

Legs. Procoxal spine absent. Anterior and posterior tympana equally concealed beneath bilaterally symmetrical auritate shields (Fig. 4). Legs slender, lacking foliaceous or expanded lobes; metatibia in cross-section forming an isosceles triangle. Ventral margins of fore and midfemora unarmed; of hindfermora armed with 5-7 small spines. Apex of midtibia armed with two medial and one lateral spurs. Hindtibia prominently armed with about 20 sharp triangulate spines on each posterior margin (Fig. 7). Lateral genal lobes of hindfemur armed with a large sharp, dorsal spine and slightly shorter ventral spine.

Wings. Tegmen ca. 4.3X longer than wide; costal margin weakly inflated anteriorly; otherwise sides subparallel, apically rounded. Stridulatory file with 170 teeth, 37.7 teeth/mm. Veins bordering posterior area of tegmen variegated, a network of many cross-veins. Hindwings in repose barely exposed apically, if at all.

Abdomen. Tenth tergite truncate, not at all produced. Cercus cylindrical, gradually incurved, terminating in a single tooth (Fig. 5). Subgential plate spatulate, with a shallow medial keel, apical margin bearing two nonarticulating pseudostyles (Fig. 6). Internal genital membranous, lacking sclerotized structures.

Coloration. Two features are distinctive in the coloration of this species. The tegmina are glossy or waxy chlorophyllous green with black highlight surrounding several of the crossveins. The pronotal disc is tricolored: the area from the anterior margin to the posterior lateral sulcus is green, while the area extending from the large spine to the posterior margin of the disc is reddish brown. The large spine and its accessory spines are piceous.

Source of information:  Nickle. 1985. A new steirodont katydid from Colombia (Orthoptera: Tettigoniidae). Entomological News. 96(1):11-15

Date last modified:  Sunday, June 22, 2008
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