Zagrammosoma trifurcatum Perry

Perry, Ryan K. & Heraty, John M., 2021, Read between the lineata: A revision of the tattooed wasps, Zagrammosoma Ashmead (Hymenoptera: Eulophidae), with descriptions of eleven new species, Zootaxa 4916 (1), pp. 1-108: 95-97

publication ID

https://doi.org/10.11646/zootaxa.4916.1.1

publication LSID

lsid:zoobank.org:pub:803ED7FD-4A09-44F4-AAE2-6F70A0509E86

DOI

http://doi.org/10.5281/zenodo.4467538

persistent identifier

http://treatment.plazi.org/id/BC53327A-FFE4-6C56-25CF-FDB1D1C5C53D

treatment provided by

Plazi

scientific name

Zagrammosoma trifurcatum Perry
status

n. sp.

Zagrammosoma trifurcatum Perry   n. sp.

( Fig. 44 View FIGURE 44 )

Diagnosis. This species has a unique mesosomal color pattern: dark stripes that trifurcate anteriorly from the posterior margin of the mesoscutellum, to the apex of the notaulus ( Fig. 44D, E View FIGURE 44 ). Zagrammosoma trifurcatum   also possesses a dark metacoxa with a transverse yellow band ( Fig. 44B View FIGURE 44 ). The fore wing pattern is similar to Z. flavolineatum   ( Fig. 16C View FIGURE 16 ) and Z. metallicum   ( Fig. 32C View FIGURE 32 ), however, the mesoscutellum has a medial, yellow band in Z. flavolineatum   ( Fig. 16D, E View FIGURE 16 ), and metallic color is present in Z. metallicum   ( Fig. 32 View FIGURE 32 ).

Description. Female - body length 1.78–2.82 mm. Metallic luster on body absent. Scape yellow with black stripe dorsally. Lower face with median stripe present. Vertex with 2 stripes above compound eye. Gena posteriorly with dark stripes below compound eye. Occiput yellow with 2 dark, vertical stripes. Pronotum with median band complete; laterally with 2 black stripes. Prepectus yellow with dark stripe along dorsal margin. Mesoscutum with median band posteriorly expanding. Mesoscutellum black with yellow along lateral margin, sometimes with additional yellow inverted “U” originating on anterior margin ( Fig. 44D View FIGURE 44 inset). Propodeum black. Procoxa and mesocoxa yellow. Metacoxa with transverse, yellow band. Profemur and mesofemur yellow. Metafemur with banding encircling femur. Fore wing: basal band absent; cubital band present; parastigmal band present, with perpendicular extension greater than that of stigmal apex; stigmal band and postmarginal band present, with perpendicular extension greater than that of stigmal apex; connection from parastigmal band to stigmal band present; connection from stigmal band to postmarginal band absent or present. Hind wing hyaline. Gaster dark.

Upper ocular sulcus present. Pedicel longer than wide. Funiculars symmetrical: first longer than wide (w:l = 0.72–0.84); second longer than wide (w:l = 0.86–0.95).

Pronotum, in dorsal view, bell-shaped (w:l = 1.06–1.26); 3–4 pairs of setae along posterior margin. Mesoscutum reticulate; small, scattered setae and intermediate setae present. Mesoscutellum subequal or wider than long (w:l = 1.02–1.14); submedian grooves present. Hind tibial spur distinctly shorter than basitarsus. Hind basitarsus longer than second tarsomere, (bst:2 nd = 1.08–1.1).

Fore wing l:w = 2.46–2.55. Submarginal vein with 4–7 pairs of setae dorsally. Basal fold setose. Cubital fold setose. Admarginal setae present. Uncus originating on stigma by more than own length from stigmal apex.

Male - as female, except: body length 0.79–1.46 mm. Propodeum black with yellow spot lateral to median carina; cubital band absent; parastigmal band present, with perpendicular extension less than that of stigmal apex; connections from parastigmal band to stigmal band and from stigmal band to postmarginal band absent; metafemur yellow or with spot dorsally; gaster yellow with median band Gt 2 –Gt 6.

Remarks. A rarely collected species, with significant sexual dimorphism of the gaster color, similar to Z. flavolineatum   ( Fig. 16D, E View FIGURE 16 ). These are the only two species of Zagrammosoma   where the female gaster is completely black, and the male gaster is yellow with a large dark spot dorsally. While no male Z. trifurcatum   was successfully sequenced, this dimorphism is also seen in Burkseus flavoviridis   , which, like Z. flavolineatum   , had both males and females sequenced and confirmed as valid species ( Perry & Heraty, 2019).

Hosts. Unknown.

Distribution. Nearctic: USA (CA). Neotropical: Belize ( Fig. 33 View FIGURE 33 ).

Etymology. Taken from Latin for the trifurcating dark lines on the dorsal surface of the mesosoma that converge at the apex of the mesoscutellum.

Type material. Holotype: USA: California: Kern Co., Cuddy Valley Rd. , 1630m, 34°50’4”N, 119°02’17”W, 12.viii.2015, J. Heraty, H15-073, swp [1♀, UCRCENT416914 (D4600)], deposited at UCRC GoogleMaps   . Paratypes: USA: California: Kern Co., Cuddy Valley Los Padres Natl. Frst., 1612m, 34°49’26”N, 119°01’18”W, 31.viii.1984, R. D. Goeden, reared from flower head of Chrysopsis villosum   [4♁ 4♀, UCRC: UCRCENT312296 View Materials , 312304 View Materials , 312305 View Materials , 312311 View Materials , 312314 View Materials , 414596 View Materials , 414597 View Materials , 485708 View Materials ]. GoogleMaps   Cuddy Valley Rd. , 1630m, 34°50’4”N, 119°02’17”W, 12.viii.2015, J. Heraty, H15-073, swp [1♀, UCRC: UCRCENT416557 View Materials (D4592)] GoogleMaps   .

Additional material examined: BELIZE: Cayo Dist.: Belmopan , 79m, 17°14’54”N, 88°46’11”W, 25.i.1952 [1♁, CNC: CNC508680 View Materials ] GoogleMaps   . USA: California: Kern Co., Cuddy Valley Los Padres Natl. Frst., 1612m, 34°49’26”N, 119°01’18”W, 31.viii.1984, R. D. Goeden, reared from flower head of Chrysopsis villosum   [9♁ 7♀, UCRC: UCRCENT312294 View Materials , 312295 View Materials , 312297–312303 View Materials , 312306–312310 View Materials , 312312 View Materials , 312313 View Materials ]. GoogleMaps   San Diego Co. , Imperial Beach, 8m, 32°34’54”N, 117°06’04”W, 10.vii.2009, photographed by S. Snover, ypt [1♀, https://bugguide.net/node/ view/325435/bgimage] GoogleMaps   .

UCRC

University of California, Riverside

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes