Bubaces convergens Brailovsky, 1981

Brailovsky, Harry & Barrera, Ernesto, 2020, Review of the genus Bubaces (Hemiptera: Heteroptera: Rhyparochromidae Lethaeini) with descriptions of three new species, new distributional records, and key to species, Zootaxa 4767 (2), pp. 244-256 : 249-251

Bubaces convergens Brailovsky, 1981

( Figs. 2 , 9 )

Bubaces convergens Brailovsky, 1981: 206 -208 (original description)

Redescription. Male. Dorsal coloration. Head shining reddish brown; tylus and antennal segment I shining dark chestnut; antennal segments II–IV pale chestnut orange; basally with two iridescent spots, one on either side of midline, each spot consisting of a series of parallel ridges. Pronotum with anterior lobe dark shining reddish brown, posterior lobe pale shining chestnut, with humeri and anterolateral borders yellow. Scutellum pale shining chestnut orange. clavi and coria pale shining chestnut, each with costal margin yellowish, and with prominent circular yellow to creamy yellow subapical spot; hemelytra tricolored, membranes at base and near apical corial borders shining chestnut, each followed by a transverse hyaline band, which continues along border, remainder pale yellow gray. Dorsal abdominal segments entirely shining chestnut. Ventral coloration. Head, thorax and abdominal sterna shining reddish brown; rostral segments I-IV yellow (apex of IV pale brown); evaporative surfaces dark shining reddish brown to black; coxae and trochanters shining reddish brown; femora shining pale chestnut orange with apices paler; tibiae and tarsi yellow to pale orange. Structure. Body length large, over 5.4 mm. Head. Dorsally impunctate; vertex flat. Ventrally with scattered punctures, with deep longitudinal sulcus; rostrum reaching middle third of abdominal sternite IV; rostral segment I exceeding base of head. Thorax. Pronotum clothed with scattered long hairs; bilobed, transverse impression shallow, not deeply incised; posterior pronotal lobe evenly punctate. Hemelytra. Macropterous, extending beyond apex of last abdominal segment; clavi and coria clothed with long erect hairs. Abdomen. Sterna sparsely clothed with fine longer hairs.

Female. Habitus and color similar to male. Metathoracic scent gland. Ostiolar peritremes simple, short, not so well-developed, sinuate, not curving posteriorly.

Measurements. Male. Body length 4.91; head length 0.76; head width across eyes 0.82; interocular distance 0.45; preocular length 0.48; length antennal segments: I 0.67, II 0.90, III 0.76, IV 0.84; pronotum: total length 0.90; maximum width across humeral angles 1.45; scutellum: length 0.78; width 0.82.

Female. Body length 5.85; head length 0.90; head width across eyes 0.94; interocular distance 0.54; preocular length 0.55; length antennal segments: I 0.81, II 1.17, III 1.03, IV 0.90; pronotum: total length 1.17; maximum width across humeral angles 1.82; scutellum: length 1.02; width 1.20.

General distribution*. Described from Mexico and South America. MEXICO: GUERRERO (Tecpan de Galeana); OAXACA (La Ventosa, Tehuantepec, Zanatepec); VERACRUZ (San Andres Tuxtla). PANAMA: Rio Hato, Arraijan. VENEZUELA: MARACAY (El Limon) (Brailovsky 1981).

* The following records given by Brailovsky (1981), and O’Donnell (2006) are erroneous and belong to another species: MEXICO: CHIAPAS (Agua Azul, Comitan, Ocozocoautla, Tuxtla Gutierrez); OAXA- CA (Tehuantepec); VERACRUZ (Catemaco).

Material examined. New records. COSTA RICA: Provincia Guanacaste, Finca Jenny, 30 km N of Liberia, 300 m, I-1992, E. Araya ( UNAM) 1 female; Estación Santa Rosa, 300 m, 23-II-8-III-1995, L. Angulo ( INBIO) 1 female. MEXICO: Chiapas, Mepastepec, Rancho Puerta de Oro, 11-VIII-1991, C. Mayorga ( UNAM) 1 male.

Discussion. Bubaces convergens , is included in the “ castaneus ” group by virtue of having the total body length greater than 4.70 mm. This species is recognized by having the dorsal surfaces of the pronotum, clavi and coria clothed with long erect hairs, each corium has a prominent circular yellow to creamy yellow subapical spot, the head ventrally has a deep longitudinal sulcus, and the rostrum reaches the middle third of abdominal sternite IV. In B. castaneus , the surfaces of the pronotum, clavi and coria are glabrous, the coria lack circular yellow to creamy yellow subapical spots, and the rostrum reaches the posterior border of abdominal sternite IV.

Figures

FIGURES 1–7. Dorsal view of Bubaces spp. 1, B. castaneus Distant (female). 2, B. convergens Brailovsky (male). 3, B. enatus Brailovsky (female). 4, B. gloriosus sp. nov. (female). 5, B. occidentalis sp. nov. (male). 6, B. rostralis sp. nov. (male). 7, B. uhleri (Distant) (male).

FIGURES 8–12. Lateral view of Bubaces spp. 8, B. castaneus Distant (female). 9, B. convergens Brailovsky (male). 10, B. gloriosus sp. nov. (female). 11, B. occidentalis sp. nov. (male). 12, B. uhleri (Distant) (male).