Amnestus stali Distant
Creators: name: Martinez, Cristina Mayorga
name: Peredo, Luis Cervantes
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Amnestus
Amnestus stali

description: Amnestus stali Distant
(Figs. 3e, 4m, 5m, 6m, 7m, 8m)
Amnestus stali Distant, 1893, p. 454
Diagnosis. Juga with five pegs, disc of anterior pronotal lobe elevated with sparse setigerous punctures, prosternal carina low with ventral margin straight (Fig. 4m).
Description. Head, antennal segment III, pronotum, prosternal carina, abdominal venter, scutellum, clavus, and corium dark brown. Antennal segments I, II, IV, and V, rostrum, marginal carina of pronotum, and legs pale brown.
Head. Anterior half smooth, posterior half with punctures in the interocellar and interocular areas; tylus with four pegs, surpassing juga, antennal segment II very short, V longest; rostrum reaching metasternum. Thorax. Pronotum with anterior margin concave, anterior half convex with sparse punctures; antero-lateral margins slightly carinate; posterior middle area with deep punctures. Propleura shiny and smooth; prosternal carina low and straight (Fig. 4m). Mesopleura flat, evaporatorium reaching anterior and lateral margins of pleura. Metapleura flat, evaporatorium reaching posterior and lateral margins of pleura, peritreme pale brown with a dark brown margin centrally, with apex slightly curved, posterior margin of evaporatorium toothed and with short hairs (Fig. 5m). Legs. Fore tibiae with six robust spines on dorsal margin with a series of hairs on ventral margin; fore femora with a bifid spine on the basal third on the ventral surface (Fig. 6m). Hind femora with ventral margin serrated and a simple spine near apex on ventral surface (Fig. 7m). Scutellum triangular, apex acute, disc with disperse punctures. Hemelytra. Disc without punctures, clavus with two rows of pale punctures, membrane hyaline, surpassing apex of abdomen. Abdomen. Ventrally convex with fine hairs.
Male genitalia. Parameres long, mesially expanded, and apically slightly concave and digitiform, with two setae apically (Fig. 8m).
Male measurements (n=2). Body length 3.5; head length 0.65; width across eyes 0.7; interocular distance 0.45; interocellar distance 0.25; antennal segments: I 0.15, II 0.05, III 0.25, IV 0.3, V 0.35; rostral segments: I 0.3, II 0.35, III 0.45, IV 0.25; pronotum length 1.0; width across anterior margin 0.8; width across humeral angles 1.65; scutellum: length 0.8; width 0.9; length of fore femora 0.5; fore tibiae 0.65; fore tarsi: I 0.1, II 0.05, III 0.15; length of hind femora 0.85; hind tibiae 0.9; hind tarsi I 0.1, II 0.05, III 0.15.
Type data. This species was described based on two females, each specimen mounted on one card. The one with the typical circled red type label bears also the labels: Quique Mts., 7–9000 ft. Champion; BCA., Hem 1, Amnestus stali Dist (type); so this specimen is designated as the Lectotype. The other specimen has the same labels, but also has a label: Distant Coll. 1911-383, and a yellow circled Paratype label; so this becomes a Paralectotype. New records. Mexico: Chiapas. Tapalapa, W de Tapalapa, 13-III-1994, O. Gomez, 2 ♂ (CNIN).
Distribution. Mexico: Chiapas. Guatemala (Froeschner, 1960: Mayorga & Cervantes, 2009).
description: Published as part of Martinez, Cristina Mayorga & Peredo, Luis Cervantes, 2014, The genus Amnestus Dallas (Hemiptera: Heteroptera: Cydnidae: Amnestinae) in Mexico, with the description of eleven new species from Chiapas, pp. 401-432 in Zootaxa 3779 (4) on pages 428-429, DOI: 10.11646/zootaxa.3779.4.1, http://zenodo.org/record/225144