Amnestus calakmulensis 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 calakmulensis

description: Amnestus calakmulensis new species
Figs. 1B, 2B, 3B, 4B, 5B, 6B
Description. (Fig 1 B). Tylus longer than juga, ventral margin of prosternal carina slightly toothed, (Fig. 2 B), fore tibia flat with five spines on external margin (Fig. 4 B); head, pronotum, scutellum, abdomen, and costal margin dark brown; antenna, rostrum, marginal carina of pronotum, and legs pale yellow.
Head. Anterior half without punctures: tylus longer than jugum, rostrum reaching middle part of metasternum.
Thorax. Pronotum with transverse impression strongly marked with setigerous punctures, anterior margin concave, anterolateral margins carinated and toothy, posterior margin rounded. Propleura shinny; prosternal carina high with its anterior margin slightly toothy, and with ventral margin rounded (Fig. 2 B). Mesopleura with evaroratorium flat, extended along pleura, on metapleura it reaches only middle part of pleura, peritreme elongate, slightly curved, and posterior margin with a rough surface area well defined (Fig. 3 B). Legs. Fore tibia flattened with five robust spines on external margin (Fig. 4 B) fore femur with a bifid spine on middle part of internal margin, hind femur with a simple spine on internal margin, near apex (Fig. 5 B). Scutellum. Wider than long, with punctures arranged on lines over anterolateral margins and punctures uniformly arranged on disc. Hemelytra. Clavus, and corium with punctures arranged on longitudinal rows, middle part of apical region of mesocorium with punctures, distal margin sinuate, hemelytral membrane hyaline, longer than apex of abdomen. Abdomen. Shinny, without lateral setae.
Male genitalia. Parameres small with an apical triangular peg elevated apically in lateral view. With three setigerous punctures (Fig. 6 B).
Male measurements. (n = 8) Body length 2.58 ± 0.02; head length 0.46 ± 0.05; width across eyes 0.55 ± 0.02; interocular distance 0.32 ± 0.02; interocellar distance 0.18 ± 0.008; antennal segments: I 0.11 ± 0.008, II 0.04 ± 0, III 0.25 ± 0.01, IV 0.23 ± 0.01, V, 0.26 ± 0.04; rostral segments: I 0.21 ± 0.01, II 0.22 ± 0.02, III 0.24 ± 0.04, IV 0.20 ± 0.01; pronotum length 0.92 ± 0.09; width across anterior margin 0.59 ± 0.01; width across humeral angles 1.33 ± 0.04; scutellum length 0.56 ± 0.07; fore femur 0.45 ± 0.03; fore tibia 0.57 ± 0.01; hind femur 0.66 ± 0.02; hind tibia 0.75 ± 0.04; hind tarsi: I 0.06 ± 0, II 0.04 ± 0, III 0.10 ± 0.
Female measurements. (n = 5) Body length 2.8 ± 0.22; head length 0.55 ± 0.05; width across eyes 0.63 ± 0.05; interocular distance 0.35 ± 0.03; interocellar distance 0.21 ± 0.03; antennal segments: I 0.13 ± 0.01, II 0.04 ± 0, III 0.26 ± 0.03, IV 0.24 ± 0.04, V 0.26 ± 0.02; rostral segments: I 0.23 ± 0.05, II 0.25 ± 0.01, III 0.20 ± 0, IV 0.18 ± 0; pronotum length 0.9 ± 0.03; width across anterior margin 0.66 ± 0.06; width across humeral angles 1.54 ± 0.1; width across humeral angles 0.65 ± 0.08; scutellum width 0.84 ± 0.04; fore femur 0.46 ± 0.01; fore tibia 0.59 ± 0.04; hind femur 0.84 ± 0.04; tibia 0.90 ± 0.05; hind tarsi: I 0.07 ± 0.01, II 0.03 ± 0, III 0.08 ± 0.
Types. Holotype, male: MEXICO, Campeche, Calakmul, Balamku, 31 May 2001 C. Mayorga, L. Cervantes (CNIN). Paratypes: MEXICO, Campeche: 7 males, 5 females, same data as holotype, litter of Ficus cotinifolia H.B.K. (CNIN, IEXA).
Distribution. Mexico, Campeche.
Etymology. Named for the the Mayan area of Calakmul, in which this species was collected.
Discussion. Pronotum with transverse impression strongly marked with a series of setigerous punctures (Fig. 1 B) a character that the other five species lack; prosternal carina high, with anterior margin slightly toothy, and ventral margin rounded (Fig. 2 B). Peritreme elongated and slightly curved, posterior margin of metapleura with a band of wrinkles well defined (Fig. 3 B). Parameres small with a triangular peg elevated apically, with three setigerous punctures (Fig. 6 B) Fore tibia flattened, with five robust spines on external margin (Fig. 4 B); hind femur with a single spine near apex of internal margin (Fig. 5 B).
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 166-167, DOI: 10.1664/0028-7199(2005)113[0159:dosnso]2.0.co;2, http://zenodo.org/record/15361142