Preembobracon zaldivarriveroni Butcher & Quicke

Quicke, Donald L. J. & Butcher, Buntika A., 2015, Preembobracon gen. nov. (Hymenoptera: Braconidae: Doryctinae: Ypsistocerini: Embobraconina) from Brazil, Zootaxa 4000 (2), pp. 275-280 : 276-277

Preembobracon zaldivarriveroni Butcher & Quicke , sp. nov.

( Figs. 1 , 2 )

Holotype: female Brazil, Bahia Itabuna, v. 1983, F. P. Benton ( BMNH)

Paratype: female, same data as holotype ( BMNH).

Length of body 2.5mm, of fore wing 2.3 mm, of antenna 3.1mm.

Antenna with 26 flagellomeres, gradually tapering towards apex. Terminal flagellomere pointed but not acuminate. Basal flagellomere with only one or two placoid sensilla, 1.1 × longer than the 2nd and 3rd flagellomeres respectively; 3 × longer than wide. Width of head: width of face: height of eye = 2.0: 1.0: 1.0. Face shiny, although with dense long silvery setosity the setae are very fine such that the punctures from which they emerge are hard to discern. Inter-tentorial distance 1.4 × tentorio-ocular distance. Frons deeply depressed medially. Distance between posterior ocelli: transverse diameter of posterior ocellus: shortest distance between ocelli and eye = 1.3: 1.0: 2.5. Mesosoma 1.4 × longer than high. Mesopleuron and mesosternum smooth and shiny. Notauli narrow, sharply defined on posterior 0.6 of mesoscutum, rugulose, separated posteriorly by a narrow ridge. Scutellar sulcus deep, wide and with 3 string carinae. Scutellum with distinct lateral carinae. Propodeum largely rugose with distinct pair of submedial carinae separated by transverse carinae, and with two strong curved transverse carinae running laterally; with distinct apophyses. Pterostigma 2.3 × longer than wide. Vein r-rs arising from beyond midlength of pterostigma. Vein 2-M strongly curved and vein rs-m short. Length of veins r-rs: 3 RSa: 3RSb = 1: 3: 7. Length of veins 1CUa: 1Cub = 1: 3.2. Hind wing vein m-cu indicated by a pigmented line. Lengths of fore femur: tibia: tarsus = 1.05: 1.05: 1.0. Lengths of hind femur: tibia: tarsus = 1.05: 1.3: 1. Hind femur 3.3 × longer than maximally deep. First metasomal tergite with well-developed longitudinal carination. Ovipositor originating from near the midlength of metasoma but hardly exserted beyond its apex.

Coloration. Head and body brown except face pale yellow and stemmaticum black. Antennae pale yellow-brown basally becoming black distally. Legs pale yellow. Tip of ovipositor black. Wings hyaline with dark brown venation. Etymology. Named after Alejandro Zaldívar-Riverón in recognition of his excellent and ongoing contributions to the study of doryctine wasps.

Figures

FIGURE 1. Preembobracon zaldivarriveroni gen. et sp. nov. (A) Habitus; (B) face, front view; (C) head and mesosoma, lateral view; (D) mesosoma, top view.

FIGURE 2. Preembobracon zaldivarriveroni gen. et sp. nov. (A) Wings; (B) metasoma, dorsal view.