Guapinannus orbiculatus, 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 : 274

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Guapinannus orbiculatus

sp. n.

Guapinannus orbiculatus , sp. n.

( Figs 3 View FIGURE 3 , 7 View FIGURE 7 , 9 View FIGURE 9 )

Holotype. Male. PANAMA: Bocas del Toro: Bocas del Toro: Almirante, trail to dam on Nigua Creek , 9.29792°N 82.4211°W, 32m, 31 Mar 1959, H. S. Dybas, 1♂ ( UCR _ ENT 00090718 ) ( FMNH). GoogleMaps

Paratypes: PANAMA: Bocas del Toro : Bocas del Toro: Almirante, trail to dam on Nigua Creek , 9.29792°N 82.4211°W, 12m, 31 Mar 1959, H. S. Dybas, 1♂ ( UCR _ ENT 00097813 ), 4♀ ( UCR _ ENT 00097814 -UCR_ENT 00097817), 2 nymphs ( UCR _ ENT 00097818 , UCR_ENT 00097819) ( FMNH) GoogleMaps . Chiriqui: Near Nueva California W. of Finca Palo Santo , 8.5°N 82.41667°W, 1524 m, 10 Mar 1959, H. S. Dybas, 1♂ ( UCR _ ENT 00090796 ) ( FMNH) GoogleMaps .

Diagnosis: Recognized by the small mid-sized body length (1.26 mm), elongate body shape ( Fig. 3 View FIGURE 3 ), one-loop, relatively thick vesica with pointed tip, and short, slender, pointed anophoric process (black arrow) ( Fig. 7 View FIGURE 7 ).

Description: Male: Total body length 1.26 mm; length from posterior margin of pronotum to posterior wing margin 0.9 mm; greatest width across pronotum 0.53 mm; greatest width across forewings 0.68 mm. General coloration: uniformly pale. Vestiture: Dorsum with sparse setae, setae short; setae on posterior margin of forewing long. Structure: Head: Eye about one third as high as head; muscle scars large. Thorax: Anterior pronotal margin concave, posterior margin slightly concave; pits on pronotum medium-sized, evenly distributed; scutellum in dorsal view abruptly narrowed to tip, tip rounded. Forewing: With outline elongate oval; membrane contributing about one third of forewing length, posterior distal margin squarish, vein-tracing areoles on proximal part of wing absent; C+Sc uniformly fairly broad; 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 horse head-shaped. Legs: Claws long. Genitalia ( Fig. 7 View FIGURE 7 ): Pygophore without lobe on right side; vesica with between half and one loop, not reaching right pygophore margin, thick at midpoint, tapering to acute tip, close to apex rounded; anophoric ridge with process, process short, slender, with single lobe curved, tip pointed; right paramere curved, tapering, basal process broad; left paramere straight, tapering, basal process narrow.

Female: As in male and generic description.

Collecting method and microhabitat: Collected using Berlese and Winkler extraction from the cortex of a hollowed palm stump and from floor litter at base of a log and cut stump.

Etymology: Named for the rounded vesica after “orbiculatus” Latin for round.


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Field Museum of Natural History