Fractipons cincticornis Townes, 1970

Bordera, Santiago & Gonzalez-Moreno, Alejandra, 2011, The species of the Neotropical genus Fractipons Townes, 1970 (Hymenoptera, Ichneumonidae, Cryptinae), ZooKeys 76, pp. 55-72 : 59-64

Fractipons cincticornis Townes, 1970

Fractipons cincticornis Townes, 1970. Memoirs of the American Entomological Institute 12: 14. Holotype, ♀.

Diagnosis.

Mesoscutum smooth and shiny, with moderately sparse long setae (Figs 14, 15).Malar space about 0.4-0.5 times width of mandible base (Figs 18, 20). Basal lower rim of mandible without conspicuous translucent area. Head black, mesosoma and metasoma orange, sometimes front part of mesosoma brownish. Both male and female with white band on flagellomeres 7(8)-12 (13) and 4-8, respectively (Figs 4, 5). Occipital carina conspicuously elevated, at least in ventral section (Figs 18, 19).

Description.

Female: Body length 6.0-7.1 mm. Head 0.8-0.9 mm long, 1.4-1.8 mm wide. Mesosoma 2.2-2.8 mm long, 1.0-1.3 mm wide (mesoscutum). Fore wing 4.7-6.0 mm long. Petiole 1.1-1.5 mm long. Ovipositor sheath 1.5-2.1 mm long.

Head: Transverse, 1.7-1.9 times as wide as long, mostly smooth and shiny, strongly constricted behind compound eyes. Antenna with 26-28 flagellomeres, conspicuously thickened from third flagellomere, slightly thin towards apex. First flagellomere 4.7-6.0 times as long as maximum width; flagellomeres from tenth to penultimate flattened below; in this flat area with conspicuous setiferous sensillae (Fig. 2). Gena 0.2 -0.3 times as long as eye (in dorsal view), with fine and dense setiferous punctures on lower half, upper part in lateral view nearly straight, strongly constricted. Occiput strongly depressed in centre. Lower face finely and densely punctate, with small central prominence, clypeus rather wide, almost flat, apical margin straight or slightly arcuate. Malar space with wide granulate groove, about 0.5-0.6 times width of mandible base (Fig. 18). Posterior ocellus separated from eye by about 1.2-1.3 times its diameter. Space between posterior ocelli 0.6-0.8 times their diameter. Occipital carina reaching base of mandible, conspicuously elevated, at least in genal section (Fig. 18), nearly angular medially, dorsally. Mandible moderately tapered to apex, lower tooth shorter than upper tooth, finely granulate on basal half (Fig. 18). Maxillary palpus reaching to ventral part of epicnemial carina.

Mesosoma: Pronotal transverse groove without median longitudinal ridge. Epomia absent. Mesoscutum smooth and shiny with moderately sparse long setae (Fig. 14). Median lobe of mesoscutum without median longitudinal groove. Notauli slightly indicated anteriorly. Prescutellar groove without traces of longitudinal carinae. Scutellum moderately convex, polished and smooth or very sparsely punctate, lateral carinae strong, extending about 0.8-0.9 its length. Mesopleuron completely smooth and polished. Mesopleural impression below speculum consisting of an isolated pit some distance in front of mesopleural suture. Sternaulus weak on anterior 0.3-0.4, nearly absent posteriorly. Epicnemial carina reaching 0.8 times height of mesopleuron, weak or absent dorsally. Posterior transverse carina of mesosternum widely interrupted in front of each mid coxa, laterally elevated as flat low crest. Areolet of fore wing open. Marginal cell 2.8-3.0 times as long as deep. Ramulus absent. Vein 2 m–cu weakly inclivous, with two bullae. Vein cu-a opposite Rs+M or slightly basal. Abscissa of Cu1 between1m-cu and Cu1a 1.6-1.9 times length of Cu1b, both clearly inclivous. Hind wing with M+Cu moderately curved at apical 0.5. Abscissa of M+Cu between M and Cu1 strongly inclivous, 1.1-1.3 times as long as cu-a which is strongly reclivous. Hind femur about 5.1-5.3 as long as high. Propodeum with anterior transverse carina strong and complete, posterior transverse carina centrally absent and forming broad, low, flat crest, lateral longitudinal carina only present apically, distad of crests. Lateromedian carina partially present in area basalis. Area superomedia absent. Pleural carina rounded and strong. Submetapleural carina forming an anterior strong, flat crest. Juxtacoxal carina absent. Propodeal spiracle strongly elongate.

Metasoma: First metasomal tergite smooth and polished, sometimes with sparse setiferous punctures dorsally, laterally. Median dorsal and lateral carinae absent. Postpetiole about 0.7-0.8 times as long as maximum width (measured dorsally). Second and remaining tergites polished, with very weak dense setiferous punctures. Gastrocoelus wider than long, thyridium finely granulate. Ovipositor straight, with nodus and five dorsal apical teeth on upper valve, lower valve with three oblique notches and 4-5 small complete and transverse apical teeth (Fig. 3). Ovipositor sheaths 0.6-0.8 times as long as hind tibia.

Colour: Mesosoma and metasoma entirely yellowish orange. Head dark brown to black (Fig. 4). Mandibles, except base and teeth, clypeus apically, scape and pedicel and usually two spots on frontal orbits yellow or orange. Flagellum brown to blackish with a white band on flagellomeres 4-8. Sometimes lower face partially orange tinged. Wing membrane with fine yellowish tinge (Fig. 4).

Male: Body length 6.0-7.0 mm. Head 0.7-0.8 mm long and 1.3-1.6 mm wide. Mesosoma 2.0-2.6 mm long, 1.0-1.2 mm wide (maximum width of mesoscutum). Fore wing 4.8-5.3 mm long. Petiole 1.0-1.3 mm long.

Similar to female except as follows:

Head: Transverse, 1.9-2.0 times as wide as long, moderately constricted behind compound eyes. Antenna with 27-28 segments. Flagellum filiform, slightly tapered towards apex, first flagellomere 5.1-5.7 times as long as maximum width. Tyloids narrow and elevated on flagellomeres 11(12)-13(14, 15), moderately wide at base (Figs 26, 27), with small secretory pores on top (see Isidoro et al. 1996; Bin et al. 1999; Bordera and Hernández-Rodríguez 2003; Steiner et al. 2010). Gena in dorsal view, rounded, 0.4-0.5 times as long as eye, upper part less constricted. Malar space about 0.4-0.5 times as wide as basal width of mandible (Fig. 19). Posterior ocellus separated from eye by about 1.3-1.5 times its diameter. Space between posterior ocelli 0.5-0.6 times their diameter.

Mesosoma: Marginal cell 2.8-3.1 times as long as deep. Abscissa of M+Cu between M and Cu1 strongly inclivous, 1.3-1.6 times as long as cu-a, which is strongly reclivous. Hind femur about 5.5-5.7 as long as high.

Metasoma: Postpetiole 0.8-1.0 times as long as wide. Second and remaining tergites with dense, fine setiferous punctures.

Colour: Antenna entirely dark brown with white ring on flagellomeres 7(8) -12(13). Head black, sometimes widely yellowish or orange on lower face and/or on scape and pedicel below and/or also with two orange spots on facial orbits and frontal orbits. Pronotum dorsally and meoscutum brown to dark brown. Metasoma sometimes from postpetiole to at least tergite 5 brown-orange. Wing membrane with fine yellowish tinge (Fig. 5).

Material examined.

Type material. Holotype female with labels as follows: Brazil, Teresópolis, 13-III-1966, H. & M. Townes (AEIC).Paratypes: Brazil, 1 ♂, Teresópolis, 9-III-1966, H. & M. Townes; 1 ♂, same locality, 10-III-1966, H. & M. Townes; 1 ♀, 2 ♂♂, same locality, 11-III-1966, H. & M. Townes; 1 ♂, Campiña Grande near Curitiba, 14-II-1966, H. & M. Townes; 1 ♀, 1 ♂, Rio de Janeiro, 5-III-1966, H. & M. Townes; 1 ♀, Nova Teutonia, Santa Catarina, 17-X-1952, Fritz Plaumann (all AEIC). Non type material: Brazil, 2 ♂♂, Represa Rio Grande, Guanabara, X-1969, M. Alvarenga; 2 ♂♂, same locality, IX-1969, M. Avarenga; 2 ♂♂, same locality, I-1972, M. Alvarenga (all AEIC); 1 ♂, S. Bocaina, 1650 m, S. J. Barreiro, XI-1968, Alvarenga & Seabra (CEUA).

Distribution.

Brazil (Fig. 32).