Guapinannus uncus, Frankenberg & Knyshov & Hoey-Chamberlain & Weirauch, 2021

Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 283

Guapinannus uncus , sp. n.

( Figs 4 , 7 , 9 )

Holotype. Male. BELIZE: Belize, 17.18988°N 88.49765°W, 55m, no date provided, collector unknown, 1♂ ( UCR _ ENT 00090858 ) ( FMNH).

Paratypes: BELIZE: Orange Walk: Rio Bravo Cons. Area 3 Well Tran ( Near Res. Station ), 18.06667°N 88.55°W, 10m, 10 Sep 1995, P. W. Kovarik, 1♂ ( UCR _ ENT 00094283 ) ( UCR) .

Etymology: Named for the hook-shaped vesica after “uncus” Latin for hook (noun in apposition).

Diagnosis: Recognized by the small mid-sized body length (0.67 mm), elongate oval body shape (length to width ratio 3.4) ( Fig. 4 ), and apex of vesica hook-shaped ( Fig. 7 ).

Description: Male: Total body length 1.19 mm; length from posterior margin of pronotum to posterior wing margin 0.97 mm; greatest width across pronotum 0.27 mm; greatest width across forewings 0.35 mm. General coloration: uniformly pale. Vestiture: Dorsum with sparse setae, setae short; setae on posterior margin of forewing long. Structure: Head: Eye almost half as high as head; muscle scars indistinct. Thorax: Anterior pronotal margin concave, posterior margin slightly concave; pits on pronotum small, evenly distributed; scutellum in dorsal view gradually narrowed to tip, tip pointed. Forewing: With outline elongate oval; membrane contributing about one third of forewing length, posterior distal margin rounded, vein-tracing areoles on proximal part of wing absent; C+Sc broad, wider at widest part of wing; distal process of R pronounced; An1 wing organ on corium inflated, elongate, with median notch, without notch articulating with claval process; rc1 about 3 times as long as wide, slightly wider anteriorly; rc about 4 times as long as wide; tc about 3 times as long as wide; part of An1 and Cu forming posterodistal margin of tc slightly wider than other veins; distal margin of rc1, rc, and tc cells double s-shaped; rc2–3 trapezoidal; cub almost reaching wing margin; dc1 with basal portion fairly narrow and elongate. Legs: Claws long. Genitalia ( Fig. 7 ): Pygophore without lobe on right side; vesica with between half and one loop, surpassing right pygophore margin, thick at midpoint, with bottle opener-shaped apex, close to apex rounded; anophoric ridge with process, process short, with single lobe curved, tip pointed; right paramere curved, broad throughout, basal process broad; left paramere straight, tapering, basal process broad.

Female: Unknown.

Collecting method and habitat: Collected using flight intercept trap.

Figures

FIGURE 4. Dorsal habitus of Guapinannus tatumbia, sp. n., G. tenuis, sp. n., G. tergus, sp. n., G. trilobus, sp. n., and G. uncus, sp. n. Arrows and stars indicate diagnostic features listed in the species diagnoses.

FIGURE 7. Male genitalic features of Guapinannus spp., dorsal view, showing species-diagnostic differences in vesica, right and left parameres, and anophoric process.

FIGURE 9. Known distributions of Guapinannus spp.