Hecabolus mexicanus Zaldívar-Riverón & Belokobylskij, 2009

Castañeda-Osorio, Rubén, Belokobylskij, Sergey A. & Zaldívar-Riverón, Alejandro, 2022, Four new species of Hecabolus Curtis, 1834 (Braconidae, Doryctinae) from south and southwestern Brazil, with notes on the morphological variation and geographic distribution of H. mexicanus ZaldívarRiverón & Belokobylskij, 2009, European Journal of Taxonomy 846, pp. 126-151 : 144-147

Hecabolus mexicanus Zaldívar-Riverón & Belokobylskij, 2009

Figs 6–7

Material examined

MEXICO – Jalisco • 1 ♀; Chamela Biological Station, Calandria road, near laboratory; 19.50501° N, 105.03791° W; alt. 34 m; 16–17 Jun. 2017; Alejandro Zaldívar-Riverón and Hans Clebsch leg.; UVLT (3) [Ultraviolet light 3], selva baja caducifolia [dry forest]; DNA voucher no. CNIN4388; CNINIBUNAM • 1 ♀; Chamela Biological Station ; 19.4986° N, 105.04411° W; alt. 122 m; 10 Aug. 2010; Zaldívar, Salinas and García leg.; light tramp, selva baja caducifolia; BOLD ASDOR: 859; Cham-70; CNIN-IBUNAM • 1 ♂; Chamela Biological Station , 50 m from lab; 19.49923° N, 105.04388° W; alt. 101 m; 9–10 Aug. 2010; A. Zaldívar, V. Salinas, Mario-García and Vladimir de Jesús leg.; light trap, selva baja caducifolia; Cham-68; CNIN-IBUNAM • 1 ♂; Chamela Biological Station, Calandria road; 19.50485–19.50369° N, 105.03786–05.03642° W; alt. 45–62 m; 23 Feb. 2010; Alejandro Zaldívar leg.; sweep net, selva baja caducifolia; BOLD ASDOR: 609; Cham-51; CNIN-IBUNAM • 1 ♀; San Buenaventura ; 19°47.61′ N, 104°03.32′ W; alt. 720 m; 2–7 Dec. 1996; V.H. Toledo, M.E. Guardado, A. Soria, S. Zaragoza and L.F. Novelo leg.; Malaise trap 5; CNIN-IBUNAM • 1 ♀; same collection data as for preceding; 30 Apr.–4 May. 1997; F.A. Noguera, M.E. Guardado, A. Soria, C.A. Uribe, A. Rodríguez, S. Zaragoza, E. Ramírez and L.F. Novelo leg.; Malaise trap 3; CNIN-IBUNAM . – Mexico City • 3 ♀♀; Federal District ; “ Hecabolus sp. Det. José A. Sánchez G., [19]98”; CNIN-IBUNAM .

Variation

Females ( Fig. 6A–F )

Body length 3.2–5.3 mm. Fore wing length 1.9–3.2 mm. Ovipositor length 2.7–5.2 mm, 1.3–2.3 × as long as metasoma. Vertex very finely striate to smooth medially, sometimes entirely smooth. Frons distinctly, weakly-curvedly, and transversely striate near ocelli, with a rugose shallow depression near antennal sockets. Face transversely striate to rugose. Antenna more or less thickened, weakly setiform, with 21–22 flagellomeres. Scapus more or less narrow and long, sometimes slightly curved, 1.8–2.0 × as long as its maximum width; last flagellomere pointed apically, 0.5–0.7 × length of scapus. Mesopleuron smooth in lower 0.6, coarsely longitudinally striate in upper 0.4, finely and densely striate in posterior lower corner, sometimes very finely coriaceous near precoxal furrow. Vein m-cu of the hind wing almost straight, weakly oblique towards base of wing and unsclerotized, sometimes very poorly defined, almost spectral. Hind coxa dorsally and ventrally striate, smooth medially, inner lateral part completely striate; coxa sometimes completely striate. Hind femur wide, 2.0–2.5 × as long as its maximum width. Basal sternal plate 0.4–0.6 × as long as first metasomal segment. First tergite entirely, densely, and longitudinally striate, without areas delimited by carinae. Second tergite entirely, and third in anterior 0.1–0.3 very densely longitudinally striate, remaining area of third tergite smooth. Remaining tergites smooth, sometimes very finely coriaceous. Ovipositor sheaths slender, 1.3–2.0 × as long as metasoma, 0.8–1.0 × as long as body, 1.3–1.8 × as long as fore wing. Body black to dark brown, sometimes light brown. Metasomal tergites sometimes completely black or dark brown; in one specimen almost all tergites light brown but apical two tergites dark brown; in two specimens first two tergites completely and anterior half of third tergite dark brown, remaining tergites light brown; in one specimen anterior part of first tergite dark brown, posterior 0.3 light brown to honey-yellow, remaining tergites honey yellow. Head black, sometimes dark brown. Antenna brown, sometimes light brown. Mandibles dark brown to brown to light brown, sclerotized apically. Palpi yellow to pale yellow. Fore and middle coxae and femora light brown; trochanters, tibiae and tarsi honey yellow; hind coxa dark brown, hind femur brown to dark brown ventrally, trochanter and tarsi light brown; legs sometimes completely brown to dark brown; in one specimen fore coxa and fore femur honey yellow, middle and hind coxae and femora brown to dark brown, all trochanters, tibiae and most tarsi light yellow to pale yellow, tarsal claw dark brown to black. Fore and hind wings hyaline, sometimes fore wing faintly infuscate. Pterostigma brown to dark brown.

Male ( Fig. 7A–D )

Smaller than female. Body length 4.5–4.6 mm; fore wing length 2.9–3.0 mm. Antennae with more than 14 flagellomeres (apical segments missing); basal segments honey yellow to brown, apical segments brown to dark brown. Basal sternal plate 0.3–0.4 × as long as first segment. Hind femur 2.3 × as long as its maximum width. Fore wing pterostigma with thick, long, and very dense setae, sometimes with few, short, semierect setae; hind wing without stigma-like enlargement. Hind wing with rather short r-m, without vein RS; veins 2M, m-cu, and cu-a not sclerotized, very weakly defined. Both wings with a line of setae along margins. Body colour dark brown to black; all coxae and femora brown, tibiae light brown, trochanters, and tarsi light brown to honey yellow; tarsal claws brown to dark brown.

Distribution

The precise geographic records of this species are presented here for the first time, which include localities in the state of Jalisco and Mexico City in central Mexico.

Hosts

Unknown.

Figures

Fig. 6. Hecabolus mexicanus Zaldívar-Riverón & Belokobylskij, 2009, ♀ (CNIN-IBUNAM). A. Habitus, lateral view. B. Head, frontal view. C. Mesosoma, lateral view. D. Mesosoma, dorsal view. E. Fore and hind wings. F. Metasoma, dorsal view.

Fig. 7. Hecabolus mexicanus Zaldívar-Riverón & Belokobylskij, 2009, ♂ (CNIN-IBUNAM). A. Habitus, lateral view; inset: head, frontal view. B. Mesosoma, lateral view. C. Fore wings showing pterostigma with dense dark setae (arrow). D. Metasoma, dorsal view.