Amnestus carinopilosus 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 : 407

Amnestus carinopilosus Mayorga and Cervantes n. sp.

( Figs. 1b , 4b , 5b , 6b , 7b , 8b )

Diagnosis. Juga with five pegs; anterior half impunctate, posterior half of head with punctures; prosternal carina elevated with a series of fine setae basally ( Fig. 4b ). Pronotum with lateral margins explanate.

Description. Head, pronotum, prosternal carina, scutellum, lateral and apical margins of hemelytra, abdominal venter, femora of all legs dark brown. Antennal segments I, III, marginal carina of pronotum, rostral segments, rest of hemelytra, median and hind tibiae pale brown. Antennal segments IV–V and fore tibiae pale yellow.

Head. Anterior half without punctures; tylus longer than juga; rostrum reaching middle of mesosternum. Thorax. Anterior half of pronotum elevated, with dense punctures, anterior margin concave, anterolateral margins carinate, posterior margin rounded; propleura shiny and polished; prosternal carina elevated with a series of fine hairs at base ( Fig. 4b ); mesopleura with evaporatorium reaching anterior and lateral margins of pleura; metapleura with evaporatorium also extended to posterior and lateral margins; peritreme small, reaching middle part of pleura, with a pale brown mesial line, and posterior margin entire ( Fig. 5b ). Legs. Fore tibiae with six robust spines on dorsal margin ( Fig. 6b ). Hind femora with a simple spine near apex on ventral margin ( Fig. 7b ). Scutellum triangular with uniformly distributed punctures on disc ( Fig. 1b ). Hemelytra with scattered punctures, lateral margin slightly toothed basally; clavus with three rows of punctures; membrane hyaline surpassing apex of abdomen. Abdomen shiny, ventrally convex, with fine hairs.

Male genitalia. Paramere large, apically elongated, with middle part of external margin elevated ( Fig. 8b ).

Male measurements (n=1). Body length 3.6; head length 0.6; width across eyes 0.7; interocular distance 0.35; interocellar distance 0.2; antennal segments: I 0.15, II 0.05, III 0.3, IV 0.3; V 0.35; rostral segments: I 0.35, II 0.25, III 0.3, IV 0.2; pronotum length 1.0; width across anterior margin 0.7; width across humeral angles 1.6; scutellum: length 0.9; width 1.1; length of fore femora 0.6; fore tibiae 0.85; fore tarsi: I 0.1, II 0.05, III 0.15; length of hind femora 0.9; hind tibiae 1.0; hind tarsi: I 0.1, II 0.05, III 0.15.

Holotype Male. México: Chiapas, Santiago El Pinar, 20-VI-2006, D. N. Velasquez, Parcela 2, Trampa Amarilla 7 ( CNIN).

Distribution. Mexico: Chiapas.

Etymology. From the Latin carina = keel, and pilosus = hairy referring to the hairs on the prosternal carina.

Figures

FIGURES 1 A – D. Dorsal view of adults. a. A. bergrothi Distant, b. A. carinopilosus new species, c. A. chiapensis new species, d. A. cristobalensis new species (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.