Horismenus missouriensis (Ashmead)

Hansson, Christer, Aebi, Alexandre & Benrey, Betty, 2004, Horismenus species (Hymenoptera: Eulophidae) in a bruchid beetle parasitoid guild, including the description of a new species, Zootaxa 548, pp. 1-16 : 12-13

publication ID	https://doi.org/ 10.5281/zenodo.157587
publication LSID	lsid:zoobank.org:pub:55706626-82CF-46B4-93C6-80BDA6EADC43
DOI	https://doi.org/10.5281/zenodo.6270301
persistent identifier	https://treatment.plazi.org/id/932D8783-5D67-FFEB-AA71-FD95FE6EAF68
treatment provided by	Plazi
scientific name	Horismenus missouriensis (Ashmead)
status

Treatment

Horismenus missouriensis (Ashmead) View in CoL

Figs 1 View FIGURE 1 , 14–19 View FIGURES 10 – 15 View FIGURES 16 – 19 , 24–25 View FIGURES 20 – 29

Holcopelte missouriensis Ashmead, 1888:101 View in CoL . Lectotype female in USNM, designated by Burks (1971), examined.

Holcopelte popenoei Ashhmead, 1888:101 . Synonymized by Girault (1934). Horismenus missouriensis (Ashmead) View in CoL , Schmiedeknecht (1909).

Diagnosis. Female gaster short (MM/LG = 1.1) and ovate ( Fig. 18 View FIGURES 16 – 19 ); female funicular segments short and stout ( Fig. 24 View FIGURES 20 – 29 ), e.g. first funicular segment 1.7X as long as wide; male scape swollen ( Fig. 25 View FIGURES 20 – 29 ), 2.8X as long as wide.

Description (of Mexican specimens). Length of body female 2.2–2.5 mm, male 2.0– 2.2 mm.

Female scape yellowishwhite with apical tip dark brown, male scape with basal half yellowishwhite and apical half metallic bluishpurple; pedicel and flagellum metallic bluishgreen in female, metallic bluishpurple in male. Frons metallic bluishgreen in female, metallic purple in male. Vertex metallic bluishgreen in female, goldengreen in male. Mesosoma metallic bluishgreen with purple tinges, propodeum metallic bluishgreen with sunken and reticulate parts dull goldenpurple. Coxae metallic bluishgreen; femora, tibiae and tarsi yellowishwhite. Wings hyaline. Petiole dull goldenpurple. First gastral tergite metallic bluishgreen in anterior 1/3, dull goldenpurple in posterior 2/3.

Antennae as in Figs 24–25 View FIGURES 20 – 29 . Frons with strong smallmeshed reticulation, reticulation weaker above frontal suture, interscrobal area smooth and shiny, clypeal region with weak transverse meshes; frontal suture Vshaped and complete; antennal scrobes join below frontal suture. Vertex with weak, engraved and smallmeshed reticulation; with a median groove in posterior half, groove continues down on occiput. Occipital margin rounded. Ratios of HE/MS/WM female 4.2/1.0/2.5, male 2.9/1.0/2.4; POL/OOL/POO 3.2/1.0/1.0; WH/WT 1.0.

Mesoscutum with strong largemeshed reticulation; notauli distinct and more or less wide in posterior 1/3. Scutellum with strong and engraved reticulation. Dorsellum smooth, with two large foveas anterolaterally, foveas reticulate. Coxae predominantly smooth and shiny with very weak reticulation at base. Fore wing speculum open below. Propodeum smooth and shiny with sunken parts reticulate; propodeal callus with two setae. Petiole 1.1X as long as wide in female, 2.1X as long as wide in male. Ratios of LW/LM/HW 1.8/ 1.1/1.0; PM/ST 1.0.

First tergite smooth and shiny in anterior 1/3, posterior 2/3 microreticulate with isodiametric meshes and with micropunctures, or predominantly with micropunctures. Ratios of MM/LG female 1.1, male 1.4.

Distribution. Brazil ( De Santis 1980, Sari et al. 2002), Mexico (new record), U.S.A. ( Ashmead 1888) (from New York and southward (Burks 1979)).

Hosts. Acanthoscelides sp. on Phaseolus spp. (new record), A. floridae Horn ( Brett 1946) , A. submuticus (Sharp) ( Peck 1963) , Amblycerus robiniae (Fabricius) ( Peck 1951) , Ctenocolum crotonae (Fåhraeus) ( Sari et al. 2002) , Gibbobruchus sp. ( Burks 1971). All hosts are Bruchidae (Coleoptera) .

Material examined. 25 females, 21 males from Mexico (Distrito Federal, Mexico, Michoacan, Morelos) from Acanthoscelides sp./ Zabrotes sp. on Phaseolus vulgaris and P. coccineus ( CH).