Amnestus puncticarinatus Mayorga and Cervantes

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, Zootaxa 3779 (4), pp. 401-432 : 423

Amnestus puncticarinatus Mayorga and Cervantes n. sp.

( Figs. 3b , 4j , 5j , 6j , 7j , 8j , 9d )

Diagnosis. Jugum with five marginal pegs; posterior half of head with dense punctures; anterior margin of pronotum concave; pronotum with dense punctures on all surface; lateral margins carinate with deep punctures; prosternal carina elevated, with a small depression on middle part ( Fig. 4j ).

Head, pronotum, scutellum, and one macula on discal area of corium dark brown, antennal segments II-V, rostral segments, lateral margin of pronotum, and legs brown castaneous; antennal segment I and tarsi pale yellow; hemelytra whitish.

Head. Anterior half without punctures; tylus with four pegs, and longer than juga; juga with five marginal pegs; antennae with five segments, II the smallest; rostrum reaching base of mesosternum. Pronotum with anterior margin concave, middle anterior and posterior parts, with dense punctures covering calli; lateral margins carinate with deep punctures, posterior margin convex. Propleura. Shiny and smooth; prosternal carina elevated with a small depression on middle part ( Fig. 4j ). Mesopleura. Flat, evaporatorium extended to anterior and lateral margins of pleura. Metapleura, with evaporatorium reaching posterior and lateral margins of pleura; peritreme shiny and elongated, slightly vent on apex ( Fig. 5j ). Legs. Fore tibia with six spines on external margin; fore femur with a bifid mesial spine on ventral margin ( Fig. 6j ). Hind femur with one small and simple spine near apex on external margin and a simple spine on apex on internal margin. Hind tibia with basal half flat, with a simple spine near base on ventral margin ( Fig. 7j ). Scutellum triangular with acute apex and with deep punctures on disc. Hemelytra. Corium with uniformly distributed punctures; clavus with three rows of punctures; membrane hyaline, longer than apex of abdomen. Abdomen shiny, ventrally convex with fine hairs on all surface.

Male genitalia. Parameres externally curved and apically elongated, with setigerous punctures on ventral margin ( Fig. 8j ).

Female genitalia. Spermatheca with receptacle, with a small asymmetrically developed flange around its basal part, as in figure 9d.

Male measurements (n=10). Body length 3.3 ± 0.3; head length 0.49 ± 0.04; width across eyes 0.76 ± 0.04; interocular distance 0.41 ± 0.04; interocellar distance 0.2; antennal segments: I 0.15, II 0.1, III 0.3, IV 0.25, V 0.35; rostral segments: I 0.3, II 0.37 ± 0.03, III 0.3, IV 0.25; pronotum length 1.1 ± 0.1; width across anterior margin 0.76 ± 0.04; width across humeral angles 1.74 ± 0.1; scutellum: length 0.77 ± 0.03, width 1.0 ± 0.01; length of fore femur 0.68 ± 0.02; fore tibia 0.74 ± 0.04; fore tarsi: I 0.1, II 0.05, III 0.15; length of hind femur 0.85; hind tibia 1.0; hind tarsi: I 0.1, II 0.05, III 0.15.

Female measurements (n=10). Body length 3.3 ± 0.2; head length 0.51 ± 0.06; width across eyes; 0.75; interocular distance 0.41 ± 0.04; interocellar distance 0.2; antennal segments: I 0.15, II 0.1, III 0.3, IV 0.25, V 0.35; rostral segments: I 0.3, II 0.35, III 0.3, IV 0.25; pronotum length 1.0 ± 0.02; width across anterior margin 0.8; width across humeral angles 1.78 ± 0.1; scutellum: length 0.77 ± 0.08, width 0.96 ± 0.04; length of fore femur 0.65; fore tibia 0.75; fore tarsi: I 0.1, II 0.05, III 0.15; length of hind femur 0.93 ± 0.03; hind tibia1.0 ± 0.02; hind tarsi: I 0.1, II 0.05, III 0.15.

Holotype: Male. Mexico: Chiapas, 8.8 km SE, Salto de Agua, 50 m, 17°30’ N, 92’17”, W. 14-VII-2007 M.G. Branstetter. # 647-648 (CNIN).

Paratypes: 8.8 Km. SE, Salto de Agua, 50 m, 17°30’ N, 92’ 17” W, 14-VII-2007, M.G. Branstetter, # 647-648, 5 ♂, 4 ♀; 8.8 km SE, Salto de Agua 50 m, 17°30’ N, 92° 17’ W, 14-VII-2007, J.L. Cozar ANTC # 4225 3 ♂, 2 ♀; 8 km SE Salto de Agua, 17° 30' 54" N, 92° 17' 43" W, 70m, 14-VI-2008, wet forest Col. YMRA, MDEM, DJC, JM, JTL, JLC, 43 ♂, 32 ♀ (CNIN, ECOSUR, IEXA).

Distribution. Mexico, Chiapas.

Etymology. From the Latin punctum = puncture, and carina = keel, referring to the punctures on pronotal carina.

Figures

FIGURES 3 A – E. Dorsal view of adults. a. A. marcelae new species, b. A. puncticarinatus new species, c. A. santiagensis new species, d. A. septemclavatus new species, e. A. stali Distant (scale = 1 mm).

FIGURES 4 A – M. Lateral view of head and prothorax, showing prosternal carina. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species, e. A. denticulatus new species, f. A. laevifemoralis new species, g. A. longinoi new species, h. A. lorenae new species, i. A. marcelae new species, j. A. puncticarinatus new species, k. A. santiagensis new species, l. A. septemclavatus new species, m. A. stali Distant.

FIGURES 5 A – M. External scent efferent system. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species, e. A. denticulatus new species, f. A. laevifemoralis new species, g. A. longinoi new species, h. A. lorenae new species, i. A. marcelae new species, j. A. puncticarinatus new species, k. A. santiagensis new species, l. A. septemclavatus new species, m. A. stali Distant.

FIGURES 6 A – O. Male fore leg, anterior view. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species, e. A. denticulatus new species, f. A. laevifemoralis new species, g. A. longinoi new species, h. A. lorenae new species, i. A. marcelae new species, j. A. puncticarinatus new species, k. A. santiagensis new species, l. A. septemclavatus new species, m. A. stali Distant, n. A. sinuosus, o. A. basidentatus.

FIGURES 7 A – Q. Male hind leg, posterior view. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species, e. A. denticulatus new species, f. A. laevifemoralis new species, g. A. longinoi new species, h. A. lorenae new species, i. A. marcelae new species, j. A. puncticarinatus new species, k. A. santiagensis new species, l. A. septemclavatus new species, m. A. stali Distant, n. A. sinuosus, o. A. brunneus, p. A. ficus, q. A. pusillus.

FIGURES 8 A – N. Lateral view of parameres. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species, e. A. denticulatus new species, f. A. laevifemoralis new species, g. A. longinoi new species, h. A. lorenae new species, i. A. marcelae new species, j. A. puncticarinatus new species, k. A. santiagensis new species, l. A. septemclavatus new species, m. A. stali Distant, n. A. forreri.

FIGURES 9 A – D. Spermatheca. a. A. pusio b. A. obscurus, c. A. laevifemoralis, d. A. puncticarinatus