Allorhogas joergenseni Martinez and Zaldivar-Riverón, 2008

Martinez, Juan J., Zaldivar-Riverón, Alejandro & Sáez, Alberto G., 2008, Reclassification of Bracon mendocinus, a gall-associated doryctine wasp, and description of a new closely related species of Allorhogas (Hymenoptera: Braconidae), Journal of Natural History 42 (41 - 42), pp. 2689-2701 : 2697-2699

publication ID	https://doi.org/ 10.1080/00222930802354134
persistent identifier	https://treatment.plazi.org/id/03A72007-1E62-FFB4-FE8E-4A0BFC4FF9C7
treatment provided by	Felipe
scientific name	Allorhogas joergenseni Martinez and Zaldivar-Riverón
status	sp. nov.

Treatment

Allorhogas joergenseni Martinez and Zaldivar-Riverón sp. nov.

( Figures 2B,D,F View Figure 2 , 3B–D,F View Figure 3 , 4C,D View Figure 4 )

Diagnosis

As mentioned above, A. joergenseni sp. nov. is similar to A. mendocinus , but it can be distinguished by having a striate third metasomal tergum and the more conspicuous frons excavation.

Female

Body length 2.1–2.7 mm, forewing 1.6–2 mm. Colour. Body orange-red, apex of antenna and metasoma darker, sometimes almost black, forewing hyaline basally and very weakly infuscate beyond vein M. Veins brown, except C+SC+R, M+CU and 1-1A, which are light brown to yellow, pterostigma brown, hind wing hyaline.

Head. Transverse, about twice as long as it is wide, 19 to 24 antennomeres; occipital carina present and complete, reaching hypostomal carina; face and vertex rugose ( Figure 2B View Figure 2 ), temples rugose to weakly rugose in the smaller specimens, except for an almost smooth, fine median line from clypeus to toruli; frons excavated and weakly sculptured ( Figure 2D View Figure 2 ), oral cavity small, shorter than malar space; eye moderate size, 1.5 to 2 times the length of the malar space; temples narrow, shorter than eye width.

Mesosoma. Relatively short and compact, 1.5 to 1.7 times longer than high and about as high as wide. Pronotum rugose, pronotal collar not distinct, pronotal furrow rugose or somewhat scrobiculate. Mesoscutum ( Figure 2F View Figure 2 ) transverse in dorsal view and strongly declivous anteriorly, anterior face vertical in lateral view, 0.6 to 0.8 times as long as wide; coarsely rugose; notauli obscured by sculpture. Scutellum acinose. Propodeum ( Figure 3B View Figure 3 ) rugose–areolate, declivous posteriorly, without distinct carina or areola, with two divergent carinae directed posteriorly and laterally from median anterior edge. Mesopleuron rugose to acinose, subalar furrow poorly indicated and rugose, sternaulus about half the length of mesopleuron.

Legs. Foretibia with a row of seven spines along anterior margin, hind coxa mostly rugose and with a small but distinct ventral tubercule.

Wings. Forewing ( Figure 4C View Figure 4 ) with pterostigma short and broad. Second submarginal cell closed at apex; first subdiscal cell open apically; r shorter than 3RS; 2cu-a absent; RS+Ma sinuate; 2RS almost directly in line with m-cu, RS+Mb very short; hind wing ( Figure 4D View Figure 4 ) with vein m-cu weakly curved towards wing apex.

Metasoma. Tergum I ( Figure 3D View Figure 3 ) always slightly wider than long, striate, anterior area clearly delimited by carinae and punctate; dorsal raised median area not clearly defined by carinae. Terga II and III ( Figure 3C View Figure 3 ) striate, fused, line separating second and third terga weakly indicated only laterally; remaining terga ( Figure 3F View Figure 3 ) striate basally and smooth apically; ovipositor sheaths 0.25 times as long as metasoma.

Male

Essentially as in female, sometimes slightly smaller and lighter in colour, not so heavily sculptured, with notauli weakly indicated anteriorly.

Biology

Unknown. The specimens examined were collected with a net by sweeping the foliage of L. chilense and associated plant species.

Etymology

Named after Pedro Jörgensen, for his contribution to the knowledge of gallassociated insects in Argentina.

Material examined

Argentina: Holotype female ( MACN). La Pampa, Santa Rosa, 26 July 2006, Martinez coll. Paratypes: Nine females (one coated for scanning electron microscopy) and three males, same data as holotype ( MACN) .