Cryptopetalops, Brailovsky, 2021

Brailovsky, Harry, 2021, Illustrated key to the genera included in the tribe Acanthocephalini (Hemiptera Heteroptera: Coreidae: Coreinae), with descriptions of three new genera, seven new species, new taxonomic rearrangements, and a key to genera of Placoscelini, Zootaxa 5082 (5), pp. 457-475 : 466-467

Cryptopetalops , gen. nov.

Type species: Cryptopetalops llorentei , sp. nov., here designated.

Description. Head. Wider than long across eyes, quadrate, not declivent, dorsally flat, parallel sided in front of eyes; tylus projecting beyond juga as a compressed conspicuously raised plate, with apex triangular or extending upward as a foliate projection; juga apically quadrate, not visible above, deflexed below antenniferous tubercle; antenniferous tubercle unarmed, closely appressed to tylus; antennae shorter than total body length; antennal segment I stouter than segments II to IV, slightly curved outward, longer than maximal length of head, with inner face not longitudinally ridge; antennal segments II and III cylindrical, moderatelly slender; segment IV narrow, fusiform, elongate; antennal segment IV the longest, III the shortest and I longer than II; ocelli barely raised, located below posterior border of eyes; preocellar pit small, scarcely evident; eyes hemispherical, protuberant; Figs. 4–5 ) depression with single sulcus; postocular tubercle barely exposed in dorsal view; buccula semicircular, short, elevated, unarmed, not projecting beyond anterior border of eye; rostrum reaching mid third of mestasternum; rostral segment IV the shortest, II the longest, and I longer or subequal to III. Thorax. Pronotum wider than long, trapezoidal, declivous, with distinct collar; frontal angles blunt; anterolateral margins obliquely straight, nodulose; anterior pronotal lobe rectangular, flat; calli almost flat, impunctate; posterior pronotal lobe raised, convex; pronotal disc punctate not tuberculate; posterolateral margins obliquely sinuate, regularly dentate; humeral angles extending laterally into broad sharp spine, turning backward; posterior margin sinuate, smooth, with paired triangular processes subacute, reaching basal third of scutellar disc. Metapleural supracoxal spine absent; metathoracic scent gland opening elongate, directed anterolaterally; peritreme raised, bilobate, anterior auricle nearly globose, posterior auricle small, digitiform. Prosternum with deep concavity; mesosternum barely sulcate; metasternum flat; metacetabulae with large and broad creamy yellow hardened protuberance. Scutellum. Longer than wide, triangular, apically flat.

Legs. Males. Fore and mid femora slender, ventrally armed with two rows of spines, the inner row with stronger and robust spines, outer row with small and scattered spines, and always with two subapical spines; hind femur incrassate, ventrally armed with one row of stout, large and robust spines, with dorsal and lateral surface tuberculate; inner row of tubercles stronger and subacute; dorsally with small, acute, spine near the base. Fore and mid tibiae cylindrical, dorsally sulcate, unarmed; hind tibiae slightly expanded on the outer face, unarmed, inner face armed with one row of stout spines. Hemelytra. Macropterous, extending beyond apex of last abdominal segment; costal margin emarginate; apical corial margin slightly sinuate; apical angles extending beyond middle third of hemelytral membane. Abdomen. Connexival segments raised above tergum; posterior angles of segments V–VI tiny spinated. Male genitalia. Genital capsule. Posteroventral edge with lateral angles rounded, and the area between them with shallow concavity ( Fig. 40 ). Parameres. See figures 29–32.

Pubescence. Head, antennal segments I–IV, pronotal and scutellar disc, clavus, corium, thorax, legs and abdominal sterna scattered with tiny setae usually decumbent; calli with abundant erect setae.

Discussion. Cryptopetalops gen. nov., ( Figs. 7–9 ) resembles Anomalopetalos ( Figs. 1–3 ) and Antipetalops ( Figs. 4–5 ) both of which were described herein, but can be distinguished from those genera by the characters outlined here. In Cryptopetalops , the rostrum reaches the middle third of the metasternum; the antennae are shorter than the total body length; the tylus is conspicuously expanded and raised, foliate-shaped; antennal segment IV is the longest, III the shortest, and I longer or subequal than II; the metathoracic peritremes are bilobate, with the anterior auricle nearly globose, and the posterior auricle digitiform; each male hind acetabulae has a large, broad, creamy yellow, hardened protuberance; the male hind femora dorsally have a small acute spine near the base; the male hind tibiae are slightly expanded on the outer face, unarmed, and inner face of each with one row of stout spines; the body surface has sparse, tiny, usually decumbent setae; the calli have abundant erect hairs. In Anomalopetalops the rostrum reaches the posterior border of the mesosternum; the antennae are shorter than the total body length; the tylus projection is triangular, not prominent; the antennal segment IV is the longest, III the shortest, and I longer than II; the metathoracic peritremes have the two auricles nearly fused; the male hind acetabulae lacks the creamy yellow hardened protuberances; the male hind femora dorsally has a small acute spine near the base; the male hind tibiae are simple, cylindrical, sulcate, without expansion on the outer faces, and the inner faces with one row of stout spines; the body surface is sparsely clothed with tiny setae which is usually decumbent; the calli, and pro-, meso-,and metasternum with abundant setae. In Antipetalops , the rostrum reaches the posterior border of mesosternum; the antennae are longer than the total body length; the tylus projection is triangular, not prominent; the antennal segment IV is the longest, III the shortest, and I longer than II; the metathoracic peritremes has the two auricles fused; the male hind acetabulae lack creamy yellow, hardened protuberances; the male hind femora dorsally lack small, acute spines, near the base; the male hind tibiae are slightly expanded on the outer face, unarmed, and the inner face with one row of stout spines; the head dorsally and ventrally is densely clothed with short, erect setae; head ventrally and pro-, meso-, and metapleura glabrous.

Female. Unknown.

Etymology. From the Greek “kryptos” meaning hidden or secret, combined with “ Petalops ”, referring to the similiarity of both genera. The gender is masculine.

Figures

FIGURES 1‒9. Dorsal view. 1, Anomalopetalops ariquemesus sp. nov. (male) 2, Anomalopetalops brulei sp. nov. (male). 3, Anomalopetalops diamantinus sp. nov. (male). 4, Antipetalops colombianus sp. nov. (male). 5, Antipetalops discretus sp. nov. (female). 6, Zygometapodus castaneus (Blöte) (female). 7, Cryptopetalops llorentei sp. nov. (male). 8, Cryptopetalops llorentei sp. nov. (male). 9, Cryptopetalops pluteus sp. nov. (male).

FIGURES 38‒43. Male genital capsule. 38, Anomalopetalops ariquemesus sp. nov. 39, Antipetalops colombianus sp. nov. 40, Cryptopetalops llorentei sp. nov. 41, Cryptopetalops pluteus sp. nov. 42, Petalops napoensis Brailovsky. 43, Petalops thoracicus (Thunberg).