Bubaces occidentalis, Brailovsky & Barrera, 2020

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 : 252-253

Bubaces occidentalis sp. nov.

( Figs. 5 , 11 , 13-14 , 19–20)

Type locality. Mexico, Jalisco.

Description. Holotype male. Dorsal coloration. Head shining reddish brown; tylus and antennal segments I-IV shining 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 to dark yellowish orange. Scutellum, clavi and coria dark shining reddish brown; costal margins of coria dark yellowish orange; hemelytra tricolored, membranes at base and near apical corial borders shining chestnut, followed by a transverse hyaline band which continues along each border, remainder pale yellow gray; dorsal abdominal segments shining chestnut, with lateral margins of segments III-V shiny yellow. 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 chestnut with apices yellowish orange; tibiae and tarsi yellow.

Structure. Body length large, over 5.4 mm. Head. Dorsally impunctate; ventrally with scattered punctures, and with deep ventral longitudinal sulcus; rostrum reaching posterior border of abdominal sternite IV; rostral segment I exceeding base of head. Thorax. Pronotum clothed with scattered long hairs, bilobed, transverse impression shal- low, 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. Genitalia. Parameres as in figures 19–20.

Female. Habitus and color similar to male.

Measurements. Male. Body length 5.54; head length 0.91; head width across eyes 0.96; interocular distance 0.52; preocular length 0.60; length antennal segments: I 0.78, II 1.95, III 0.93, IV 0.87; pronotum: total length 1.08; maximum width across humeral angles 1.78; scutellum: length 0.90; width 0.94.

Female. Body length 5.85; head length 0.96; head width across eyes 1.02; interocular distance 0.55; preocular length 0.64; length antennal segments: I 0.84, II 1.20, III 0.93, IV 0.88; pronotum: total length 1.15; maximum width across humeral angles 1.90; scutellum: length 0.95; width 1.08.

Type material. HOLOTYPE male: MEXICO: Jalisco, Estación de Biología, Chamela , 16-XI-1978, H. Brailovsky ( UNAM) . PARATYPES: MEXICO: Colima, 5.8 km NO Ixtlahuacan, 390 m, 19°01’15.7’’N- 103°46’37.8’’W, 26-IV-2006, 15-II-2007, S. Zaragoza ( UNAM) 1 male, 4 females; 4 km SO de Jiliotupa, arroyo El Salado, 163 m, 19°03’26.1’’N- 103°43’26.1’’W, 28-VI-2006, F. A. Noguera, S. Zaragoza, E. Ramirez, E. Gonzalez, & L. Salas ( UNAM) 6 males, 6 females. Guerrero: Teacalco, 1110 m, 2-II-1989, E. Barrera, A. Cadena, & L. Cervantes ( UNAM) 1 male. Jalisco, Estación de Biología, Chamela, at blacklight, 18-III-1975, 30-IV-1976, 24- VII-1976, 15-VI-1977, 16-17-XI-1978, 6-IX-1979, 3-VII-1988, 12-VIII-1988, 21-VII-1989, 29-VI-1990, 7-VII- 1990, 27-VIII-1990, 21-VI-1991, 13-VII-1991, 16-X-1991, H. Brailovsky, M. Gurrola, E. Ramirez, C. Mayorga, G. Ortega León, E. Barrera, & A. Cadena ( UNAM) 18 males, 25 females. Michoacan, Caleta de Campos, 27-VII- 1985, R. Barba ( UNAM) 1 female.

Etymology. The specific name is in reference to the Western distribution of this species.

Discussion. Differential diagnosis. Bubaces occidentalis sp. nov., is included in the “ castaneus ” group by having the total length of the body greater than 4.70 mm. Bubaces occidentalis is further segregated by having the dorsal surfaces of the pronotum, clavi and coria clothed with long hairs, the coria lacking circular yellow to creamy yellow subapical spots, and its distribution being restricted to the western parts of Mexico. In B. castaneus , the surfaces of the pronotum, clavi and coria are glabrous, the coria also lack circular yellow to creamy yellow subapical spots, but its has a wide distribution, occurring from southern Mexico (States of Campeche, Quintana Roo and Yucatan) throughout Central and South America.

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).

FIGURES 13–14. Metathoracic scent gland peritreme of Bubaces occidentalis sp. nov. 13, male. 14, female. FIGURES 15–22. Parameres of Bubaces spp. 15–16, B. castaneus Distant. 17–18, B. gloriosus sp. nov. 19–20, B. occidentalis sp. nov. 21–22, B. rostralis sp. nov.