Agoo keili Bahder & Bartlett, 2025

Barrantes Barrantes, Edwin A., Zumbado Echavarria, Marco A., Bartlett, Charles R., Helmick, Ericka E. & Bahder, Brian W., 2025, Multi-local analysis supports the transfer of Omolicna fulva to the genus Agoo and establishment of a new species in the genus from Costa Rica, Zootaxa 5584 (1), pp. 113-125 : 116-119

Agoo keili Bahder & Bartlett sp. nov.

( Figures 2–6 )

Type Locality. Costa Rica, Puntarenas Province, Osa Peninsula.

Diagnosis. Moderate sized 6.7–7.6 mm, body pallid to yellow, wings pale translucent with darker yellow band along trailing margin. Medioventral process of pygofer broadly triangular, wider than tall. Processes on inner margin of gonostyli in ventral view roughly quadrate, arising in distal half. Aedeagus bearing large, subtriangular processes on dorsolateral margins of shaft. Endosoma with four pairs of processes, bearing triangular projection on dorsal margin near apex and large pair of processes curved cephalad from apex.Anal tube broadly triangular, apex caudally projected (not downcurved), apex strongly bilobed from dorsal view.

Description. Color. Body pallid (nearly white) to yellow ( Fig. 2 ), darker dorsally; mesonotum white to yellow (when yellow, pale on lateral margins, near tegula); legs pale or yellow and pale proximally (coxae to midlength of femur white). Forewings translucent, mostly clear to strongly washed with yellow (especially dorsally).

Structure. Body length: males with wings 6.7–7.2 mm, body length (without wings) 2.8–3.2 mm; females with wings 7.2–7.6 mm, body length 3.2–3.6 mm ( Table 3 ). Head. Head narrower than pronotum. Vertex in dorsal view triangular, widest posteriorly; lateral margins foliate, bearing single row of sensorial pits, disc depressed, median carina absent; anterior margin narrow, concave (apical transverse carina absent); posterior margin quadrately concave ( Fig. 3A ); in lateral view, profile smoothly rounded from posterior margin of vertex to frontoclypeal sutures ( Fig. 3B ). Frons in frontal view with lateral margins foliate and slightly sinuate, bearing single row of sensorial pits ( Fig. 3C ), disc depressed median carina absent. Clypeus elongate-triangular. Lateral margins carinate (not foliate), bearing distinct median carina. Eye hemispherical, emarginated at antenna. Lateral ocelli distinct below eye near midline. Antennal scape short, hidden, pedicel ovate mearing many irregularly arranged sensory plaques.

Thorax. Pronotum in dorsal view roughly trapezoidal (about equal in length as vertex at midline), anterior median portion (between eyes), quadrate with anterior margin linear, posterior margin concave, median carina obscure, lateral carinae appear concurrent with anterior lateral pronotal margin; paradiscal broadly foliate behind antennae forming large fossae, partially surrounding antennae. Mesonotum at midline exceeding length of pronotum and vertex combined, tricarinate, median carina becoming obsolete posteriorly, lateral carinae medially curved from anterior margin, approximately reaching hind margin ( Fig. 3A ). Hind tibiae unarmed laterally, with apical spine ornamentation of 7-6-5.

Forewing elongate oval; apex of clavus near wing midlength; MP fused with ScP+R to form short composite vein from apex of basal cell: Fork of RP from ScP+RA nearly at same level of fusion of Pcu+1A in clavus, these just proximad of CuA fork; branching pattern: RA 1-branched, RP 2-branched, MP 4-branched, CuA 2-branched.

Male Terminalia. Pygofer in lateral view narrow and irregular in shape; narrowest dorsally, widest ventrally, anterior and posterior margin irregularly sinuate ( Fig. 5A ); in ventral view, medioventral process subtriangular ( Fig. 5B ), broader than tall with acutely pointed apex. Gonostyli in lateral view spatulate, apex broadly rounded ( Fig. 5A ); dorsal process small, bilobed, distal lobe sclerotized; in ventral view ( Fig. 5B ), median margin bearing large, quadrate process just distad midlength, distally narrowed with apices medially hooked to blunt apices. Aedeagus simple ( Fig. 6 ), approximately bilaterally symmetrical, shaft upcurved bearing a pair of apical processes (A1 & A2), elongated and slender, gently curving ventrad, angled cephalad, approximately reaching midpoint; second pair large, subtriangular processes (A3 & A4) arising on dorsolateral margins in basal 1/3 of shaft ( Fig. 6A, B ), ventral margin serrate along midlength, endosoma with multiple processes present, first pair(E1 & E2) arising subapically on lateral margins, gently curved dorsad, angled cephalad, reaching apex of A3 and A4; second pair (E3 & E4) arising on dorsal margin along inner margin, nearly straight, angled directly caudad, extending just beyond aedeagal apex; third pair (E5 & E6) arising on endosomal ventral margin, sinuate along basal region, angled dorsad and cephalad, curving directly dorsad at apex; and the fourth pair (E7 & E8) arising at endosoma apex, immediately curving dorsad, approximately reaching apex of E5 and E6. Anal tube in lateral view roughly triangular and relatively broad, posteriorly projecting (not downcurved), narrowed to blunt apices; in ventral view broad, strongly bilobed distad of epiproct and paraproct; paraproct short.

Plant Associations. Sweeping undetermined palm.

Distribution. Costa Rica (Puntarenas Province).

Etymology. The specific name is given in honor of Dr. Clifford Keil (retired faculty from the University of Delaware Department of Entomology and retired faculty member and director of the Museum of Invertebrates in the School of Biological Sciences, Pontifical Catholic University of Ecuador in Quito).

Material Examined. Holotype male, “ Costa Rica, Puntarenas Pr. / Hotel Keili, roadside / 09-VI-2021 / Coll.: B.W. Bahder / Sweeping palms / Agoo keili ♂” ( FLREC).

Paratypes same as holotype (11 males, 4 females; 2 males and 1 female were yellow morph and 9 males and 1 female were pale morph .

Figures

FIGURE 2. Adult male habitus of Agoo keili sp. nov.; A) pale form in lateral view, B) yellow form in lateral view, C) pale form in dorsal view and D) yellow form in dorsal view. Scale bar = 1 mm.

FIGURE 3. Adult male Agoo keili sp. nov., pale form top row and yellow form bottom row;A) head, pronotum and mesonotum dorsal view, B) head, pronotum and mesonotum lateral view and C) head frontal view. Scale bar = 1 mm.

FIGURE 4. Adult male Agoo keili sp. nov. forewing; A) pale form and B) yellow form, C) line art; black text = vein, italics = crossvein, and green text = cell. Scale bar = 1 mm.

FIGURE 5. Adult male Agoo keili sp. nov. terminalia; A) lateral view, B) ventral view and C) dorsal view. Scale bar = 0.5 mm.

FIGURE 6. Agoo keili sp. nov. aedeagus; A) right lateral view, B) left lateral view, C) dorsal view and D) ventral view. Scale bar = 0.25 mm.