Horismenus liturgusae Hansson & Schoeninger, 2014

Hansson, Christer, Padua, Diego G., Schoeninger, Karine, Agudelo, Antonio A. & Oliveira, Marcio L., 2014, A new species of Horismenus Walker (Hymenoptera, Eulophidae) from ootheca of Liturgusa Saussure (Mantodea, Liturgusidae) from Central Amazonas, Brazil, Journal of Hymenoptera Research 37, pp. 53-60 : 54-57

Horismenus liturgusae Hansson & Schoeninger sp. n. Figures 1 -12

Diagnosis.

Antennal scrobes joining below frontal suture ( Figs 2, 3 ); mesoscutum with engraved reticulation ( Fig. 5 ); scutellum smooth and shiny ( Fig. 5 ); mesoscutum and scutellum metallic dark purple ( Fig. 9 ); propodeal callus with three setae ( Fig. 5 ); femora and tibiae pale; eyes very large and frons very narrow ( Figs 2-4 , 7, 8 ), DE/DO = 1.4 in female, 2.9 in male; gaster conspicuously hairy ( Figs 6 , 12 ). Similar to Horismenus argus Hansson but with larger eyes in both sexes (DE/DO = 2.5 in female, and = 3.3 in male of Horismenus argus ), entire mesoscutum metallic dark purple (metallic bluish-green in Horismenus argus ) and with engraved reticulation throughout (sidelobes and anterior 1/2 of midlobe with raised and strong reticulation in Horismenus argus ), propodeal callus with three setae (two setae in Horismenus argus ), forewing costal cell with 2-5 setae on ventral side close to submarginal vein (costal cell bare in Horismenus argus ).

Description.

FEMALE. Length 2.1-2.2 mm.

Entire antenna dark brown with metallic green tinges ( Fig. 10 ). Frons metallic dark purple with parts close to eyes, part below level of toruli and part above frontal suture metallic bluish-green ( Fig. 7 ). Vertex with anterior ½ metallic bluish-green, posterior ½ metallic dark purple. Mesoscutum, scutellum and propodeum metallic dark purple, mesoscutum with anterior margin metallic bluish-green ( Fig. 9 ). Coxae metallic bluish-green; remaining parts of legs yellowish-white, mid and hind femora slightly infuscate ( Fig. 1 ). Wings hyaline ( Fig. 1 ). Petiole metallic dark purple. Gaster with first tergite with anterior ⅔ metallic bluish-green, posterior ⅓ metallic dark purple; remaining tergites metallic dark purple ( Fig. 12 ).

Antenna as in Fig. 10 . Frons below level of toruli, interscrobal area, areas along inner margin of eyes, and part just above frontal suture smooth and shiny, remaining parts with raised reticulation; frontal suture V-shaped, incomplete, does not reach eyes; antennal scrobes joining below frontal suture ( Fig. 2 ). Vertex with engraved and weak reticulation; posterior part with a median groove ( Fig. 4 ). Occipital margin rounded ( Fig. 4 ).

Mesoscutum with engraved reticulation; notauli narrow and distinct throughout ( Fig. 5 ). Scutellum smooth and shiny ( Fig. 5 ). Dorsellum convex and smooth, anterolaterally with two foveae ( Fig. 5 ). Propodeum including median carina smooth and shiny, posterolateral propodeum and anterolateral foveae with weak reticulation, submedian grooves with strong reticulation ( Fig. 5 ); propodeal callus with three setae. Coxae smooth and shiny. Forewing speculum closed below; with 23 admarginal setae; costal cell with 2-5 setae on ventral side close to submarginal vein.

Gaster with first tergite smooth with a reticulate band in posterior part ( Fig. 6 ).

Ratios.

DE/DO 1.4; WH/DE 6.5; HE/MS/WM 5.1/1.0/2.3; POL/OOL/POO 5.7/1.0/1.0; WH/WT 1.2; LW/LM/HW 1.8/1.3/1.0; PM/ST 1.0; LC/WC 3.5; WG/WC 0.8; LS/LT 0.19; LP/WP 0.8; MM/LG 0.7-0.8.

Male. Length 1.7 mm.

Similar to female except antenna ( Fig. 11 ) with scape wider and with apical two flagellomeres separated.

Ratios. HE/MS/WM 4.4/1.0/2.3; LP/WP 1.2; MM/LG 1.5-1.6.

Distribution.

Brazil.

Hosts.

From ootheca of Liturgusa sp. ( Mantodea : Liturgusidae ).

Material examined.

Holotype female labeled "BRAZIL: Amazonas, Manaus, Campus I, 21.xi.2012, D.G. Pádua & K. Schoeninger", "Ex Liturgusa sp." (INPA). Paratypes: 27 females and 22 males with same data as holotype (7f# 6m# in BMNH, 20f# 16m# in INPA).

Etymology.

Named after host.

Figures

Figure 1. Horismenus liturgusae sp. n. female, habitus, length of specimen 2.1 mm.

Figures 7 - 12. Horismenus liturgusae sp. n. 7 Head frontal, female 8 Head frontal, male 9 Mesosoma dorsal, female 10 Antenna lateral, female 11 Antenna lateral, male 12 Gaster dorsal, female.

Figures 2 - 6. Horismenus liturgusae sp. n. 2 Head frontal, female 3 Head frontal, male 4 Vertex, female 5 Mesosoma dorsal, female 6 Gaster dorsal, female.