Zagrammosoma fisheri Perry, 2021

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 : 47

Zagrammosoma fisheri Perry n. sp.

( Fig. 15 )

Diagnosis. Zagrammosoma fisheri is identified by the wide dark band found dorsally on the mesosoma and the dark brown or black gaster ( Fig. 15C, D ); no other species of Zagrammosoma has this color combination. Male Z. centrolineatum may be identified as Z. fisheri due to similarities in mesosoma color patterns ( Fig. 15E vs Fig. 10E ), but the gaster is more yellow in Z. centrolineatum ( Fig. 10E ), and the fore wing pattern in Z. centrolineatum is distinct and dissimilar to any other species of Zagrammosoma ( Fig. 10C ). The wide dorsal band on the mesoscutum, in both males and females, is also thinner in Z. fisheri ( Fig. 15D, E ) than it is in Z. centrolineatum ( Fig. 10D, E ).

Description. Female - body length = 1.23–1.45mm. Metallic luster on body absent. Scape with dark stripe present dorsally. Lower face with median stripe absent, or with 2 submedian stripes present. Vertex with 2 stripes above compound eye. Gena posteriorly with a wide, dark band. Occiput with two dark, vertical stripes. Pronotum with median stripe complete; laterally with 2 black stripes. Prepectus yellow with dark stripe along dorsal margin. Mesoscutum with median stripe complete. Mesoscutellum with one or three dark lines. Propodeum all dark. Fore wing: basal band absent; cubital band present; parastigmal and stigmal bands present, with perpendicular extension greater than that of the stigmal vein; postmarginal band present, with perpendicular extension greater than that of the stigmal vein, but less than 75% of fore wing width; apical band absent; connections from basal to parastigmal bands, from parastigmal to stigmal bands, and from stigmal to postmarginal bands absent. Hind wing hyaline. Procoxa, mesocoxa, and metacoxa uniformly dark. Profemur uniformly yellow. Mesofemur and metafemur with banding encircling femur. Gaster dark.

Upper ocular sulcus present but very faint. Scattered short setae on vertex present. Pedicel longer than wide. Funiculars symmetrical: first subequal (w:l = 1.0); second wider than long (w:l = 1.5).

Pronotum, in dorsal view, bell-shaped, wider than long (w:l = 1.5–1.71); 3 pairs of setae along posterior margin. Reticulate mesoscutum; small, scattered setae present; intermediary setae absent. Mesoscutellum wider than long (w:l = 1.06–1.24); submedian grooves absent. Hind tibial spurs distinctly shorter than basitarsus. Hind basitarsus shorter than 2nd tarsomere (bst:2nd = 0.75).

Fore wing l:w = 2.18–2.34. Submarginal vein with 5 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: 1.18mm. First funicular wider than long (w:l = 0.8); second funicular subequal (w:l = 1.0).

Remarks. This species is rare, described using only three specimens and appears to be found only in Southern California. The female gaster is shiny and may appear metallic under certain microscopes ( Fig. 15D ), however, there is no metallic luster present as there is in Z. metallicum ( Fig. 32D ).

Hosts. Unknown.

Distribution. Nearctic: USA (CA) ( Fig. 22 ).

Etymology. Named in honor of Dr. Brian L. Fisher.

Type material. Holotype: USA: California: San Bernardino Co., Arrowhead Lake Rd. , 903m, 34°23’4”N, 117°15’21”W, 18.viii.1983, H. Andersen, Sweep [1♀, UCRC: UCRCENT498888 ], deposited at UCRC . Paratypes: USA: California: Kern Co., Indian Wells Canyon , 1300m, 35°41’46”N, 117°56’58”W, 19–21.viii.2011, M. E. Irwin, small dry wash, MT [1♁, UCRC: UCRCENT491710 (D6706)] . San Bernardino Co., Arrowhead Lake Rd. , 903m, 34°23’4”N, 117°15’21”W, 18.viii.1983, H. Andersen, Sweep [1♀, UCRC: UCRCENT498889 ] .

Figures

FIGURE 10. Zagrammosoma centrolineatum, ♀: (A) head, frontal, (B) lateral habitus, (C) fore wing, dorsal, (D) dorsal habitus; (E) ♁ dorsal habitus. Scale bar = 0.2 mm (A), 0.5 mm (B–E).

FIGURE 15. Zagrammosoma fisheri n. sp., ♀: (A) head, frontolateral, (B) lateral habitus, (C) fore wing, dorsal, (D) dorsal habitus; (E) ♁ dorsal habitus. Scale bar = 0.2 mm (A), 0.5 mm (B–E).

FIGURE 22. Distributions of Zagrammosoma fisheri n. sp., Z. hobbesi, and Z. intermedium.

FIGURE 32. Zagrammosoma metallicum n. sp., ♀: (A) head, frontolateral, (B) lateral habitus, (C) fore wing, dorsal, (D) dorsal habitus; (E) ♁ dorsal habitus. Scale bar = 0.2 mm (A), 0.5 mm (B–E).