Protenoroides, Brailovsky, 2019

Brailovsky, Harry, 2019, Illustrated identification key to the genera of New World Micrelytrini (Hemiptera: Alydidae: Micrelytrinae), with description of two new genera, one new species and new distributional records, Zootaxa 4668 (3), pp. 393-409 : 395-396

Protenoroides , gen. nov.

Type species: Protenor tropicalis Distant , here designated. [= Protenoroides tropicalis (Distant) , comb. nov]

Description. Head. Longer than wide and longer than total length of pronotum; parallel-sided behind antennae and behind eyes; apex of tylus sharply deflected between tips of juga; juga rounded, surpassing tylus, meeting or nearly so in front of tylus; ocelli small, distant from posterior border of eyes; interocellar distance three times shorter than the space between eye and ocelli; ocellar tubercle small; preocellar pit deep; frons with shallow longitudinal groove; buccula small, hemispherical, just reaching level of antenniferous tubercle; antennal segment I elongate, surpassing the head, basal half slender, apical half stout; segments II–III cylindrical, slender, IV fusiform; antennal segments I–III clothed with erect setae, longer than those on body; setae longer than the thickness of antennal segment II; antennal segment IV the longest, II longer than I, and I and III subequal or I longer than III; rostrum barely reaching the posterior margin of metasternum; rostral segment I just reaching base of head and subequal to II, III the shortest, and IV longer than III. Thorax. Pronotum wider than long, trapezoidal, sides evenly and gradually tapering from posterior to anterior; collar demarcated posteriorly by low broad transverse ridge; anterolateral margins obliquely straight; posterior border almost straight; humeral angles rounded, entire; posterolateral margins with anterior half concave and posterior half straight. Pro-, meso-, and metapleura and each acetabulae densely punctate; propleuron near middle third provided with convex expansion clearly visible in dorsal view; pro-, meso-, and metasterna smooth; mesosternum with deep median groove; metathoracic scent gland opening elongate, bilobed, directed anterolaterally; peritreme raised; evaporative area glabrous, and rugose. Scutellum. 1.5 as long as wide, triangular, apically subacute, not spinated. Legs. Slender, clothed with setae, longer than those on body; fore coxae nearly touching; middle and hind coxae further apart; femora unarmed; hind femora not surpassing tip of abdomen. Hemelytra. Macropterous, extending beyond the apex of the last abdominal segment; clavus with 4 to 5 irregular rows of punctures. Abdomen. Abdominal spiracle small, nearly close to middle third and far from connexival margin. Male genital capsule. Middle third of posteroventral margin on caudal view with sharp, narrow median projection and laterally with broad triangular expansion ( Schaefer, 1980). Paramere. Body elongate, curved, apically acute, like an arrow ( Figs. 59–60 ). Punctation. Head in dorsal view heavily punctate with fine, shallow yellowish punctures and few granules; pronotum, scutellum, clavus and corium densely punctate with deep dark punctures. Head ventrally impunctate on middle third and heavily punctate laterally with deep dark punctures; pro-, meso-, and metapleura densely punctate with dark punctures; pro-, meso-, and metasterna yellowish white and impunctate; abdominal sterna and genital capsule impunctate, except laterally scattered with dark punctures.

Discussion. Indeed there are many similarites between Protenor Stål ( Figs. 11 , 24 , 37 ) and Protenoroides , gen. nov. ( Figs. 12 , 25 , 38 ). In each genus the humeral angles and tip of scutellum are unarmed, the apex of tylus sharply deflected between tips of juga, the hind femora not surpassing the apex of the abdomen, and the hemelytral membrane with a dark brown spot near basal angle. In Protenor the juga in side view are bifid and in dorsal view elongate, overpassing the tylus and meeting in front of them; and the head is conspicuously longer than the maximum length of the pronotum ( Fig. 24 , 37 ). In Protenoroides , the juga in side view are globose, not bifid, and dorsally surpassing the tylus and meeting or nearly so in front of tylus; and the head is slightly longer than the maximum length of the pronotum ( Figs. 25 , 38 ).

Protenoroides resembles Darmistus , with the humeral angles and apex of scutellum unarmed, the apex of tylus sharply deflected between tips of juga, the apex of hind femora not surpassing the apex of the abdomen, the clavus with 4 to 5 irregular rows of punctures, the mesosternum with a deep median goove, the juga in side view are globose and not bifid, and the abdominal spiracles are located close to middle third and far from connexival margin. In the new genus, antennal segment I is elongate, clearly surpassing the head, with the basal half slender, the apical half slightly stouter, and longer than 1.80 mm; antennal segment I is subequal to or longer than III; and the hemelytral membrane hyaline with a dark brown spot near the basal angles. In Darmistus antennal segment I is uniformly stout, shorter than 1.12 mm, and always the shortest segment; and the hemelytral membrane hyaline without a dark brown spot near the basal angles ( Figs. 7 , 20 , 33 ).

Etymology. Named for the similarities with Protenor ; “-oides ” is a Greek suffix denoting resemblance; gender masculine.

Figures

FIGURES 56–62. Parameres. 40–41, Bactrocoris plaumanni Kormilev. 42–43, Bactrodosoma parallelum Stål. 44–45, Bactrophya peruviana Breddin. 46–47, Bactrophyamixia slateri Brailovsky. 48–49, Calamocoris erubescens Breddin. 50–51, Cydamus borealis Distant. 52–53, Darmistus subvittatus Stål. 54–55, Esperanza texana Barber. 56, Nepiomistus eximius sp. nov. 57–58, Protenor belfragei Haglund. 50–60, Protenoroides tropicalis (Distant), comb. nov. 61–62, Trachelium alboapicatum Distant.

FIGURES 9–13. Dorsal view. 9, Eudarmistus bicolor Breddin (male). 10, Nepiomistus eximius sp. nov. (male). 11, Protenor belfragei Haglund (female). 12, Protenoroides tropicalis (Distant) (male), comb. nov. 13, Trachelium bicolor Herrich-Schäffer (female).

FIGURES 22–26. Lateral view. 22, Eudarmistus bicolor Breddin (male). 23, Nepiomistus eximius sp. nov. (male). 24, Protenor belfragei Haglund (female). 25, Protenoroides tropicalis (Distant) (male), comb. nov. 26, Trachelium bicolor Herrich-Schäffer (female).

FIGURES 35–39. Lateral view of head and thorax. 35, Eudarmistus bicolor Breddin (male). 36, Nepiomistus eximius sp. nov. (male). 37, Protenor belfragei Haglund (female). 38, Protenoroides tropicalis (Distant) (male), comb. nov. 39, Trachelium bicolor Herrich-Schäffer (female).

FIGURES 5–8. Dorsal view. 5, Calamocoris nigrolimbatus Breddin (male). 6, Cydamus borealis Distant (male). 7, Darmistus subvittatus Stål (female). 8, Esperanza texana Barber (female).

FIGURES 14–21. Lateral view. 14, Bactrocoris plaumanni Kormilev (female). 15, Bactrodosoma parallelum Stål (male). 16, Bactrophya peruviana Breddin (male). 17, Bactrophyamixia bambusicola Brailovsky (female). 18, Calamocoris nigrolimbatus Breddin (male). 19, Cydamus borealis Distant (male). 20, Darmistus subvittatus Stål (female). 21, Esperanza texana Barber (female).

FIGURES 27–34. Lateral view of head and thorax. 27, Bactrocoris plaumanni Kormilev (female). 28, Bactrodosoma parallelum Stål (male). 29, Bactrophya peruviana Breddin (male). 30, Bactrophyamixia bambusicola Brailovsky (female). 31, Calamocoris nigrolimbatus Breddin (male). 32, Cydamus borealis Distant (male). 33, Darmistus subvittatus Stål (female). 34, Esperanza texana Barber (female).