Amnestus carinatus Martinez & Peredo 2005, new species
Creators: name: Martinez, Cristina Mayorga
name: Peredo, Luis Cervantes
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Amnestus
Amnestus carinatus

description: Amnestus carinatus new species
Figs. 1C, 2C, 3C, 4C, 5C, 6C
Description. (Fig. 1 C). Jugum with five spines; anterior half of head without punctures; prosternal carina elevated with a small grove on ventral margin, (Fig. 2 C); pronotum with lateral margins widely carinated. Head, prosternal carina, pronotum, and scutellum dark brown. Antennae, rostrum, marginal carina of pronotum, hemelytra, and legs pale yellow.
Head. Anterior half smooth; tylus longer than jugum; rostrum short reaching mesosternum, Thorax. Anterior half of pronotum slightly elevated, anterior and posterior border concave, anterolateral margins strongly carinate, base truncate, (Fig. 1 C), and posterior margin rounded. Propleura shiny and smooth; prosternal carina elevated with a small groove on ventral margin; mesopleura with evaporatorium extended, and a small groove on posterior margin and reaching posterior and lateral margins of pleura. Osteolar peritreme of metapleura elongate, slightly curved with a dark brown mesial line; posterior margin serrated with transverse rough surface (Fig. 3 C). Legs. Fore tibia flat with six robust spines on external margin and one on middle of apex (Fig. 4 C); femur with a bifid spine on ventral middle area; and a bifid spine near apex of internal margin (Fig. 5 C). Scutellum. Triangular, with regularly distributed punctures on disc. Hemelytra. Weakly punctured; basal margin toothed, clavus with three rows of punctures, apical margin entire; hemelytral membrane hyaline, and extending beyond apex of abdomen.
Abdomen. Shiny, ventrally convex, with short setae laterally.
Male genitalia. Paramere small, rounded with apex pointed and setigerous punctures arranged along middle area (Fig. 6 C).
Male measurements. (n = 6). Body length 3.7 ± 0.3; head length 0.65 ± 0.07; width across eyes 0.70 ± 0.03; interocular distance 0.37 ± 0.02; interocellar distance 0.20 ± 0.01; antennal segments: I 0.14 ± 0.01, II 0.04 ± 0, III 0.30 ± 0.02, IV 0.30 ± 0.02, V 0.32 ± 0.02; rostral segments: I 0.24 ± 0.02, II 0.30 ± 0.02, III 0.24 ± 0.01, IV 0.25 ± 0.05; pronotum length 1.21 ± 0.1; width across anterior margin 0.72 ± 0.05; width across humeral angles 1.7 ± 0.07; scutellum: length 0.81 ± 0.03, width 0.83 ± 0.1; fore femur 0.67 ± 0.02; fore tibia 0.74 ± 0.04; hind femur 1.0 ± 0.05; hind tibia 1.15 ± 0.05; hind tarsi: I 0.1 ± 0.02, II 0.04 ± 0.002, III 0.09 ± 0.01.
Female measurements. (n = 8) Body length 3.3 ± 0.3; head length 0.61 ± 0.01; width across eyes 0.67 ± 0.05; interocular distance 0.36 ± 0.01; interocellar distance 0.21 ± 0.01; antennal segments: I 0.12 ± 0.008, II 0.04 ± 0, III 0.28 ± 0.02, IV 0.25 ± 0.05, V 0.29 ± 0.04; rostral segments: I 0.23 ± 0.03, II 0.29 ± 0.02, III 0.24 ± 0.02, IV 0.25 ± 0.006; pronotum length 1.08 ± 0.1; width across anterior margin 0.69 ± 0.07; width across humeral angles 1.7 ± 0.1; scutellum: length 0.77 ± 0.1, width 0.79 ± 0.07; fore femur 0.58 ± 0.07; fore tibia 0.67 ± 0.07; hind femur 0.93 ± 0.1; hind tibia 1.0 ± 0.1; hind tarsi: I 0.08 ± 0.01, II 0.04 ± 0.01, III 0.1 ± 0.01.
Types. Holotype, male. MEXICO, Chiapas, Reserva del Ocote, 30 May 1995, E. Barrera, (CNIN). Paratypes: MEXICO, Chiapas: 5 males, 8 females, same data as holotype.
Etymology. Named for the wide carina on the anterolateral margin of pronotum.
Distribution. Mexico, Chiapas.
Discussion. Species distinguished by the wide carinate anterolateral margins of pronotum, with base of posterior margin truncate (Fig. 1 C); prosternal carina high with a mesial groove on ventral margin (Fig. 2 C); evaporitrum expanded, peritreme elongate, slightly curved with a dark brown mesial line, posterior margin with transverse rough surface. (Fig. 3 C). Parameres elongate with a series of setigerous punctures arrange in mesial lines (Fig. 6 C). Fore tibia wide, with six robust spines on outer margin, and a single spine on mesial apical region (Fig. 4 C). Fore femur with a bifid spine near apex of inner margin (Fig. 5 C).
description: Published as part of Martinez, Cristina Mayorga & Peredo, Luis Cervantes, 2005, DESCRIPTION OF SIX NEW SPECIES OF AMNESTUS DALLAS (HEMIPTERA-HETEROPTERA: CYDNIDAE) FROM MEXICO, pp. 159-173 in Journal of the New York Entomological Society 113 on pages 167-168, DOI: 10.1664/0028-7199(2005)113[0159:dosnso]2.0.co;2, http://zenodo.org/record/15361142