Doryctopambolus pilcomayensis (van Achterberg & Braet, 2004) van Achterberg & Braet, 2004

Nunes, Juliano Fiorelini, Zaldivar-Riveron, Alejandro, Castro, Clovis Sormus de, Marsh, Paul M., Penteado-Dias, Angelica Maria, Briceno, Rosa & Martinez, Juan Jose, 2012, Doryctopambolus Nunes & Zaldivar-Riveron (Braconidae), a new neotropical doryctine wasp genus with propodeal spines, ZooKeys 223, pp. 53-67 : 56-58

Doryctopambolus pilcomayensis (van Achterberg & Braet, 2004) comb. n. Figures 1 A–H

Pambolus pilcomayensis van Achterberg & Braet 2004: pp. 341-344.

Diagnosis.

This species distinguishes from Doryctopambolus sarochensis sp. n. by having one pair of propodeal apico-lateral projections (two pairs in Doryctopambolus sarochensis sp. n.) and third metasomal tergite entirely smooth (costate baso-laterally). Doryctopambolus pilcomayensis differs from Doryctopambolus dominicanus sp. n. and Doryctopambolus clebschi sp. n. by having the vertex striate (smooth in Doryctopambolus dominicanus sp. n. and Doryctopambolus clebschi sp. n.), first metasomal tergite not petiolate (at least 0.5 of tergum) and second metasomal tergite entirely sculptured (mostly smooth).

Redescription.

Females. Body length 3.0-3.6 mm, fore wing 2.0 mm, ovipositor 1.8 mm. Colour: head light to dark brown, antenna light brown, malar space light brown to yellowish, mandible and palpi light brown; propleuron and pronotum light brown, remainder of mesonotum brown to black; wings slightly infuscate, narrow banded with brown veins; metasoma brown to black, first two metasomal tergites darker; legs brown to dark brown, fore and middle coxae, trochanter, trochantellus and tarsi light brown to pale yellow; ovipositor and sheaths light brown with dark apex. Head: antero-dorsal surface of eyes bordered by groove; eyes setose; face costate-rugose laterally, central area slightly swollen and smooth; clypeus costate-rugose; malar space 0.8-1.0 times eye height; frons and vertex striate; temple in dorsal view 0.7 times eye width; antenna with 26 antennomeres. Mesosoma: length of mesosoma 2.0 times its maximum height; pronotum rugose; pronotal groove wide and scrobiculate laterally, dorsally smooth; propleuron costate-rugose; notauli deep and scrobiculate, meeting scutellum with parallel carinae; scutellum smooth and setose; scutellar sulcus with three parallel carinae; mesopleuron porcate dorsally, smooth near precoxal sulcus and ventrally; ventral portion of mesopleuron separated by shallow crenulate median groove with some rugosities near middle coxae; propodeum with one pair of conspicuous apico-lateral projections, longer than first flagellomere; median carina present only basally. Legs: hind coxa costate to costate-rugose dorsally. Wings: fore wing length 3.7-4.8 times its maximum width, r:3RSa:3RSb = 2:8-12:18-32; 2RS:3RSa:r-m = 6:8-12:2-3; m-cu arising interstitial or slightly antefurcal to vein 2RS; 1cu-a interstitial with 1M. Metasoma: length of first metasomal tergite 1.3 times its apical width, apical width about 2.0 times basal width costate-rugose, with two or three longitudinal carinae reaching apex of tergum; second metasomal tergite strongly costate; remaining metasomal tergites smooth and polished; basal sternal plate (acrosternite) about 0.33 times length of tergum; ovipositor nearly as long as metasoma.

Males. Essentially as females; body length 2.1-3.0 mm; body brown, with antennae, trochanter, trochantellus, tarsi, fore and middle coxae light brown to yellowish; face, frons and vertex slightly sculptured; stigma present in hind wing.

Material examined.

Twenty-two specimens (DCBU, MACN, MLP). Brazil: Goiás State (GO), Itumbiara, Malaise trap, C.H. Marchiori col.: one female 24-I-1998, three males 28-I-1998, one female and one male 31-I-1998, two males 7-II-1998, three females and one male 28-II-1998, one female and one male 7-III-1998, one female 1-IV-1998, one female and one male 15-IV-1998, one female 08-XI-1998 (DCBU); Mato Grosso do Sul State (MS), Bodoquena, Parque Nacional da Serra da Bodoquena, Faz. Pitangueiras, Bandeja Am. 21 (yellow pan trap), Crepaldi RA et al. col: one female V-2009 (DCBU). Argentina: Misiones Province, Estación Experimental Loreto, Dr. A. Ogloblin: one female 15-VI-1930 (MLP); Buenos Aires Province, Reserva Ecológica de Vicente López, 34.492°S, 58.480°W: one male 16-I-2011 (MACN); one male, no data (MLP).

Distribution.

Southern Brazil to Argentina.

Comments.

The presence of Doryctopambolus pilcomayensis near Buenos Aires can be explained by the courses of the Parana and Uruguay basins, which carry downstream many plant and animal species from tropical areas to higher latitudes.