Guapinannus, Wygodzinsky, 1951

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 : 269-270

Guapinannus clava, sp. n.

( Figs 2 , 5–7 , 9 )

Holotype. Male. PANAMA: Bocas del Toro: Almirante, at dam on Nigua Creek , 9.25°N 82.65°W, 810m, 23 Mar 1959, H. S. Dybas, 1♂ ( UCR _ ENT 00097823 ) ( FMNH).

Paratypes: COSTA RICA: Puntarenas: 5 km SW Finca Las Cruces, La Fila , 8.78937°N 82.98133°W, 1433 m, 21 Mar 1973, J. A. Wagner, J. B. Kethley, 1♂ ( UCR _ ENT 00090603 ) ( FMNH) . PANAMA: Bocas del Toro: Almirante, at dam on Nigua Creek , 9.25°N 82.65°W, 1080m, 23 Mar 1959, H. S. Dybas, 2♂ ( UCR _ ENT 00090784 , UCR_ENT 00097822), 7♀ ( UCR _ ENT 0009782 , UCR_ENT 00097824-UCR_ENT 00097829) ( FMNH) ; 25 Mar 1959, H. S. Dybas, 1♂ ( UCR _ ENT 00090740 ) ( FMNH) . Almirante, trail to dam on Nigua Creek , 9.3003°N 82.40214°W, 5 m, 23 Mar 1959, H. S. Dybas, 3♀ ( UCR _ ENT 00090748 ,UCR_ENT 00090778, UCR_ENT 00090779), 4 ; u ( UCR _ ENT 00090757 , UCR_ENT 00090758, UCR_ENT 00090760, UCR_ENT 00090761), 2♂ ( UCR _ ENT 00090756 ,

UCR_ENT 00090777) ( FMNH). Bocas del Toro: Almirante, trail to dam on Nigua Creek , 9.29792°N 82.4211°W, 15m, 31 Mar 1959, H. S. Dybas, 2♂ ( UCR _ ENT 00090715 , UCR_ENT 00090717) ( FMNH) .

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

Diagnosis: Recognized by the mid-sized body length (1.54 mm), oval forewing outline ( Fig. 2 ), fairly broad C+Sc (black arrow), rc (black star) and rc1 relatively short and wide, large vein-tracing areoles associated with scc, rc1, and rc (white arrow) ( Fig. 6A ), vesica short and thick with thick, rounded, club-shaped tip, and long, thin, and curved anophoric process ( Figs 6F , 7 ).

Description: Male: Total body length 1.54 mm; length from posterior margin of pronotum to posterior wing margin 1.16 mm; greatest width across pronotum 0.66 mm; greatest width across forewings 0.87 mm. General coloration: mix of pale and darker brown or reddish brown. 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 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 pointed. Forewing: With outline broad anteriorly, oval; membrane contributing about one third of forewing length, posterior distal margin squarish, veintracing areoles large, distributed along scc, rc1, and rc; C+Sc fairly broad, wider at widest part of wing; distal process of R pronounced; An1 wing organ on corium weakly inflated, rounded, with median notch, without notch articulating with claval process; rc1 about 3 times as long as wide, much 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: Caws long. Genitalia ( Fig. 7 ): Pygophore without lobe on right side; vesica with about half loop, not reaching right pygophore margin, thick at midpoint, with blunt apex, close to apex rounded; anophoric ridge with process, process long, 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 habitat: Collected using Berlese extraction, Winkler extraction in fibrous center of decaying palm log.

Figures

FIGURE 2. Habitus in dorsal, lateral, and ventral view of Guapinannus anaticulus, sp. n., and in dorsal view of G. artus, sp. n., G. auriculus, sp. n., G. castigatus, sp. n., G. clava, sp. n., G. dispar, sp. n., and G. falcis, sp. n. Arrows and stars indicate diagnostic features listed in the species diagnoses.

FIGURE 5. Scanning electron micrographs of head, thoracic structures, and tarsi of the male of Guapinannus clava, sp. n. (UCR_ENT 00090715). A: Head, frontal view. B: Head (expanded), frontal view. C: Head and pronotum, dorsal view, showing collar and vestiture on pronotum. D: Head and pronotum, lateral view, showing collar and vestiture on pronotum. E: Hind left leg, ventral view, showing claws and tarsomeres. F: Thorax, lateral view, of ventral portion of head and prothorax, showing scutellum.

FIGURE 6. Scanning electron micrographs of wings and genitalic structures of male of Guapinannus clava, sp. n. (UCR_ENT 00090715). A: Right forewing, dorsal view. B: Right hindwing, dorsal view. C: Right forewing, showing vein tracing areoles, dorsal view. D: Right forewing, showing An1/2 claval process; pronounced An1 wing organ on corium, dorsal view. E: Left forewing, showing wing coupling, dorsal view. F: Pygophore and genitalic structures, dorsal view.

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.