Percnobracon rugosus Martinez, sp. nov.
Creators: name: Martinez, Juan José
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Percnobracon
Percnobracon rugosus

description: Percnobracon rugosus Martinez, sp. nov.   
(Figs. 5–9)  
 Diagnosis: Head 0.75 to 0.85 times as long as high; mesoscutum stronlgy angled in lateral view, 0.70 to 0.80 times as long as wide; notauli mostly obscured by sculpturing; propodeum rugose­areolate medially; forewing vein 2RS at most 0.30 times as long as vein (RS+M)b; males brachypterous.   
 Female. Body length: 1.2–2.3 mm.   
 Colour: Dark reddish brown, base of antenna, face, mouthparts, trochantelli and tarsomeres I to IV lighter, telotarsi distinctly darker. Forewing infuscated with hyaline patterns as in figure 5, hind wing hyaline. Some specimens tend to be uniformly darker.   
 Head: 13 to 18 antennomeres; head 0.75 to 0.85 times as long as high; face rugulose; vertex and temple strigate; oral opening small, its maximum diameter 0.60 to 1.00 times the length of malar space, eye relatively small, malar space 0.60 to 0.90 times eye height.   
 Mesosoma: Mostly coarsely coriaceous, 0.60 to 0.70 times as high as long. Pronotum with a transverse scrobiculate groove. Anterior margin of mesoscutum strongly angled anteriorly, completely covering pronotum dorsally. Mesoscutum 0.70 to 0.80 times as long as wide(Fig. 7), with a posteromedian carina, notaulus obscured by sculpture, represented only by a few hollows anteriorly. Scutellum strongly convex and somewhat smoother than mesoscutum. Basal face of propodeum areolate­rugose medially and appically (Fig. 8). Forewing with vein 2RS at most 0.30 times as long as (RS+M)b (Fig. 5), usually much shorter, sometimes 2RS almost indistinguishable between 3RS and 2M.   
 Metasoma: Tergum I with smooth area clearly shorter than half the length of the segment, and not tapering appically (Fig. 8). Terga II and III striate, remainder of terga coriaceous basally and smooth apically. Ovipositor sheath 0.40 to 0.60 times as long as metasoma (Fig. 9).   
 Male: Brachypterous, forewing only with veins C+SC+R, M+CU and 1–1A recognisable (Fig. 6), other characters similar to female.   
 Biology: This species has been reared from eurytomid galls on spiny stipules of Prosopis caldenia. Galls are very common in young specimens of P. c a l d e n i a, when spiny stipules are well developed; they are very rare in older and less thorny trees. Adults of this species were observed on the branches of P. caldenia during spring.   
 Etymology: The name rugosus refers to the medially areolate­rugose propodeum.   
 Distribution: Known only from La Pampa province, Argentina.   
  Material examined: Holotype female  — ARGENTINA: La Pampa, 10 km N of Santa Rosa, 23/XI/2004 (MACN). Paratypes— ARGENTINA: 1 male, same data as holotype (MACN); La Pampa, Santa Rosa: 3 females, 3 males, 2/X/2004, from galls of Eurytomidae on Prosopis caldenia, Martinez (MACN, one male and one female at IFML); 1 female, 15/VIII/2004, from galls of Eurytomidae on Prosopis caldenia, Martinez (MACN); 1 female, 3 males, 24/X/2004, Martinez (MACN); 8 females, 2 males, 29/X/ 2004, Martinez (MACN, one male and one female at IFML); La Pampa, Ing. Luiggi: 1 female, 1 male, 12/XII/2004, Gorordo (MACN).
description: Published as part of Martinez, Juan José, 2006, Three new species of Percnobracon Kieffer & Jörgensen (Hymenoptera: Braconidae) from Argentina, reared from cecidomyiid (Diptera) and eurytomid (Hymenoptera) galls, pp. 49-58 in Zootaxa 1282 on pages 53-55, DOI: 10.5281/zenodo.173438