Capitonius nigrum Pitz

Pitz, Kevin M., 2010, New taxonomic status of Foenomorpha Szépligeti as a subgenus of Capitonius Brullé (Hymenoptera: Braconidae: Cenocoeliinae) including a revision of species, Zootaxa 2607, pp. 1-54 : 24-26

Capitonius nigrum Pitz n. sp.

( Figs. 17 , 18 A–G)

Diagnosis: Distinguishable from other species in the subgenus by having fore and mid tarsus ivory with basal two tarsomeres melanic.

Length: 7.8 mm.

Color: melanic except: basal three tarsomeres of fore and mid legs ivory; wings infuscate ( Fig. 18 G).

Head ( Fig. 18 A–C): antenna with 34 flagellomeres, each with two to five rows of longitudinal placodes; vertex smooth with sparse setae; occipital carina with evenly spaced setae over its entirety; lateral carina bordering antennal scrobe incomplete; median lamella of antennal scrobe flattened anteriorly, acute posteriorly; face and clypeus with dense punctures; ventral margin of clypeus with three blunt tubercles.

Mesosoma ( Fig. 18 D–E): anterior margin of pronotum protruding posteriorly as curl of cuticle; pronotum rugose anteriorly, moderately dense fovea medianly, crenulate posteriorly; anterior face of mesoscutum rugosofoveate; median lobe of mesoscutum triangular; mesoscutum with sparse to moderate punctures and setae, lateral lobe smooth with sparse setae; notauli meeting in anterior half of mesoscutum, with transverse carinae that create large oval and rectangular fovea; transscutal articulation slightly grooved medianly; scutellar disc with sparse punctures and setae; scutellar sulcus with six fovea; propleuron with moderately dense fovea; mesopleuron with large fovea basally and perpendicular carinae dorsally in epicnemial area, pleural sulcus rugose ventrally with few perpendicular fovea dorsally, otherwise smooth with few fovea, with moderately dense setae anteriorly and posteroventrally; sternaulus complete, restricted to single row of ovoid fovea; propodeum and metapleuron irregularly areolate; hind coxa with distinct groove or depression on median face; sharp carina on anterior border of hind coxal groove absent; tarsal claw with basal lobe absent.

Metasoma ( Fig. 18 F): t1 with two acute dorsal carinae over basal half, otherwise smooth; t4–t7 with dense, small pits posteroventrally near spiracles; first valvula of ovipositor with serrations apically; second valvula lacking subapical serration; ratio of length:width of t1 2.8; ratio of ovipositor:forewing 1.9; ratio of M+CU:1M vein of hind wing 2.6.

Variation: specimens with 34 or 37 flagellomeres; three specimens from Ecuador with rufous heads.

Biology: unknown.

Male: unknown.

Etymology: from Latin nigrum meaning black for the nearly complete melanic coloration of specimens of the species.

Material examined: Holotype. Ψ BRAZIL Rondonia, 62 km SE Ariquemes, 22–31 Oct 1997, W.J. Hanson ( EMUS).

Paratypes. 4 Ψ BRAZIL Rondonia, 62 km SE Ariquemes, 5–18 Nov 1996, W.J. Hanson ( AEIC 2, EMUS 2); 1 Ψ BRAZIL Rondonia, 62 km SE Ariquemes, 7–18 Nov 1995, W.J. Hanson ( CNCI); 1 Ψ BRAZIL Rondonia, 62 km SE Ariquemes, 1–14 Nov 1997, B. Dozier ( CNCI); 2 Ψ ECUADOR Napo Yasuni Res.[earch] Sta[tion] [this area has now been split off from Napo province and is now Orellana], 19–30 Oct 1998, W.J. Hanson 250m ( AEIC); 1 Ψ ECUADOR Napo Yasuni Res.[earch] Sta[tion][this area has now been split off from Napo province and is now Orellana], 30 Sept–11 Oct 2002, C. Brammer 250 m. M[alaise]T[rap], 0º 40.586'S 076º 23.851'W ( EMUS).

Figures

FIGURE 17. Lateral habitus of C. nigrum holotype female, including label information.

FIGURE 18. Holotype and paratype females of C. nigrum. A – F, holotype; G, paratype. A, anterior head; B, lateral head; C, dorsal head; D, dorsal mesosoma; E, lateral mesosoma; F, dorsal metasoma; G, forewing.