Pambolus jarocho Aguilera-Uribe & Zaldívar-Riverón, 2018

Aguilera-Uribe, Magali, Martínez, Juan José & Zaldívar-Riverón, Alejandro, 2018, Three new species of Pambolus (Braconidae: Pambolinae) from Mexico, with comments on the variation of P. oblongispina Papp, Zootaxa 4377 (1), pp. 125-137 : 128-131

Pambolus jarocho Aguilera-Uribe & Zaldívar-Riverón sp. nov.

( Figs 3A–3F , 4A–4E )

Diagnosis. Pambolus jarocho runs to P. microstriatus van Achterberg following Braet and van Achterberg’s (2003) key to Neotropical species of Pambolus . However, the new species can be distinguished from P. microstriatus by having the first flagellomere brown and second and third honey yellow in females (basal three white in P. microstriatus ); 14th to 19th flagellomeres white (10th to 12th white in P. microstriatus ). Pambolus jarocho can also be distinguished by having the area of vertex around stemmaticum striate-coriaceous (vertex finely striate in P. microstriatus ).

Description. Female. Body 2.3 mm long ( Fig. 3A ). Colour. Head brown to dark brown. Outer part of scape white, inner part brown; pedicel honey yellow. Second and third flagellomeres dark brown basally, turning honey yellow apically, 1st, 4th to 13th dark brown, 14th to 19th white, apical 20th to 25th dark brown. Palpi white; gena, clypeus and labrum brown. Propodeum, pronotum, propleuron and metasoma brown to dark brown; mesoscutum and upper part of mesopleuron amber brown; remaining area of mesopleuron brown. Spine of propodeum brown to amber brown. Coxae white, trochanters and trochantelli white; fore and mid femora dark brown with a white longitudinal stripe running along their entire length, wider basally with pale brown band between trochanters and femora; basal two quarters of hind femur white, apical quarter dark brown; fore and mid tibiae and tarsi honey yellow, hind tibiae and tarsi light brown. Wings hyaline, pterostigma and veins brown, except veins r–m, 1cu–a (cu–a) and junction of veins 2RS (2SR) and 2M (2–M), which are not pigmented. Ovipositor amber brown, sheaths brown.

Head. Antenna longer than body, with 25 flagellomeres. First flagellomere 3.0 × longer than broad apically, further flagellomeres gradually shortening so that penultimate flagellomere 1.7 × longer than broad. Head in dorsal view transverse, 1.7 × as broad as long, eye large and 3.0 × longer than temple, the latter receded. Face sparsely setose. Occiput excavated. Ocelli elliptic, POL:OD:OOL as 5:6:12. Eye in lateral view nearly round, 1.1 × higher than wide, eye 3.5 × wider than temple. Hypostomal and occipital carinae not meeting. Oral opening elliptic, 2.3 × wider than high. Face transversely striate-slightly rugulose, temple polished, frons around ocellar field and vertex with concentric striation, area surrounding ocelli slightly coriaceous ( Fig. 3C ); vertex with fine median carina. Five maxillar and four labial palpi.

Mesosoma. 1.5 × longer than high (lateral view); pronotum rugose, pronotal furrow slightly rugose; propleuron rugose-striate. Notauli wide, deep, scrobiculate, medially smooth, not joining, reaching the end of mesoscutum in a smooth area. Mesoscutal lobes coriaceous, sparsely setose, with a median longitudinal furrow running along one fourth of mesoscutum ( Fig. 3E ). Scutellar sulcus long, with six carinae. Scutellar disc slightly coriaceous. Propodeum slightly rugulose to smooth, transversely rugose with long and narrow basal areola; pair of lateral spines as long as basitarsus of fore leg. Precoxal sulcus wide, deep and scrobiculate running along 0.8 length of mesopleuron. Mesopleuron rugulose dorsally, remaining area smooth.

Legs. Hind femur 3.7 × as long as broad medially. Hind basitarsus slightly longer than tarsomeres 2–4 combined. Second tarsomere 2.3 × longer than broad.

Wings. Fore wing: 0.8 × longer than body; pterostigma 5 × broader than long and issuing r distally from its middle, r 0.2 × as long as width of pterostigma. Second submarginal 2.5 × longer than broad, 2RS (2–SR) 1.2 × longer than 3RSa (3–SR), 3RSb (4–SR) straight, reaching tip of wing and 2.8 × longer than 3RSa (3–SR). 1M (1– M) 1.6 × longer than m–cu. Vein 2CUb (CU1a) almost interstitial to 1CU (2–CU1). Vein 1cu–a (cu–a) postfurcal to 1M (1–M). Hind wing: m–cu present, in right wing postfurcal and in left wing interstitial.

Metasoma. About as long as head and mesosoma combined. First tergite strongly broadening posteriorly, 0.6 × broader behind than long medially, striate, lateral areas slightly striate; second tergite with few small basal striations. Further tergites polished. Ovipositor sheath in lateral view 0.8 × longer than fore tarsomeres 1–4 combined. Posterior end of ovipositor finely serrate.

Variation. Body 1.9–2 mm long. Antenna with 25 or 28 flagellomeres. Scutellar sulcus, with four or six carinae. Pronotum black or chestnut brown. Mesopleuron and mesoscutum amber brown or chestnut brown. Femora honey yellow or basally white. Basal striations in second tergite “V” shaped or straight.

Male. Body 2 mm long ( Fig. 4A ). Antenna longer than body, with 28 flagellomeres, all dark brown. Frons around ocellar field and vertex smooth ( Fig. 4B ). Scape and pedicel pale yellow. Anterior part of head chestnut brown, dorsal part black. Pronotum black. Mesopleuron, mesoscutum and spines of propodeum chestnut brown basally, lightening apically. Propodeum black. Second tergite chestnut brown, remaining parts of metasoma black. Mesoscutal lobes coriaceous ( Fig. 4D ). First tergite striate, second metasomal tergite with a few basal “V” shaped striations, otherwise smooth, remaining tergites completely smooth ( Fig. 4E ); laterally from scutum tergite striolate. Coxae, trochanters and trochantellus white, pale brown band between trochanters and femora, femora honey yellow, tibiae and tarsi light brown, 5th tarsomeres and tarsal claws brown.

Etymology. The specific epithet derives from the Mexican demonym for inhabitants of Veracruz.

Material examined. Holotype female: Mexico, Veracruz, Biol. Station Los Tuxtlas, 18.58512, -95,07591, 151m, 11. vi.11, 19-21:00, sweep, Clebsch, Zaldívar, Martínez, Salinas colls.

Paratypes: one female: Mexico, Veracruz, Biol. Station Los Tuxtlas, road side, 18.58000, -95.0700, 298m to 18.58149, -95.08183, 411m, 30.vi-1.vii.09, sweep, Polaszek and Hernández colls. DNA voucher no . CNIN 3485 , GenBank accession no. MG520071 (28S). One male: Mexico, Veracruz, Biol. Station Los Tuxtlas, 18.58512, - 95.07541, 151 m, 9. vi.11, 19-20:00, sweep, Clebsch and Zaldívar colls. One male: Mexico, Veracruz, Biol. Station Los Tuxtlas 18.58513, -95.07519, 151m, 11. vi.11, 19-21:00, sweep, Zaldívar, Clebsch, Martínez, Salinas colls.

Figures

FIGURE 3. Pambolus jarocho sp. nov., holotype, female. A) Habitus (lateral view); B) head (frontal view); C) head (dorsal view); D) head and mesosoma (lateral view); E) mesosoma and first metasomal terguite (dorsal view); F) metasoma (dorsal view).

FIGURE 4. Pambolus jarocho sp. nov., paratype, male. A) Habitus (lateral view); B) head (dorsal view); C) head and mesosoma (lateral view); D) mesosoma (dorsal view); E) metasoma (dorsal view).