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

description: Percnobracon witru Martinez, sp. nov.   
(Figs. 10–13)  
 Diagnosis: Head 0.65 to 0.70 times as long as high; mesoscutum stronlgy angled in lateral view, 0.60 to 0.70 times as long as wide, mostly coriaceous; notauli very weakly indicated posteriorly; propodeum mostly smooth medially with some carienae; forewing vein 2RS at most 0.25 times as long as vein (RS+M)b.   
 Female. Body length: 1.9–2.7 mm.   
 Colour: Dark reddish brown, base of antenna, face, mouthparts and tarsomeres I to IV lighter, telotarsus darker. Forewing infuscated with hyaline patterns as in figure 10, hind wing hyaline. In some specimens metasomal tergum I and base of tergum II are lighter than remainder of metasoma.   
 Head: 15 to 18 antennomeres; head 0.65 to 0.70 times as long as high; face rugulose; vertex and temple strigate, orbit scrobiculate, oral opening small, its maximum diameter 0.80 to 1 times the lenght of malar space, malar space 0.40 to 0.50 times eye height.   
 Mesosoma: Mostly coriareous, 0.60 to 0.70 times as high as long. Pronotum with a transverse scrobiculate groove. Anterior margin of mesoscutum strongly angled, completely covering pronotum dorsally. Mesoscutum 0.60 to 0.70 times as long as wide (Fig. 11), with a posteromedian carina, notaulus scrobiculate anteriorly and poorly indicated posteriorly. Scutellum strongly convex. Propodeum mostly smooth except for lateral areas and very weak carinae between basal and apical faces (Fig. 12). Forewing with vein 2RS at most 0.25 times as long as (RS+M)b (Fig. 10), ussually much shorter.   
 Metasoma: Tergum I with a smooth anterior area about half as long as the segment and slightly narrowed appically (Fig. 12), spiracular tubercles conspicuous. Terga II and III finely striate, remainder of metasomal terga coriaceous basally and smooth apically.   
Ovipositor sheath 0.40 to 0.70 times as long as metasoma (Fig. 13).  
 Male: Similar to female.   
 Biology: Unknown. Specimens examined were always collected by sweeping the branches of Prosopis caldenia but this species did not emerge from any of the five different galls collected from P. caldenia.   
 Etymology: The term witru is the native name of Prosopis caldenia, in reference to the strong association between both species.   
 Distribution: La Pampa, Argentina.   
  Material examined: Holotype female  — ARGENTINA: La Pampa, 10 km. N of Santa Rosa, 6/IV/2004, 1 female Martinez (MACN).  Paratypes —  ARGENTINA: La Pampa Reserva Prov. Parque Luro: 1 female, 1 male, 23/I/2003, Martinez (female at MACN, male at IFML); 1 male, 1/II/2003, Martinez (MACN); 3 females, 1/III/2003, Martinez (MACN, one female at IFML); La Pampa, Toay: 1 female, 17/IV/2004, Martinez (MACN); La Pampa, 10 km N Santa Rosa: 2 females, 1 male, 23/XI/2004, Martinez (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 55-56, DOI: 10.5281/zenodo.173438