Scaphytopius vulcanus Arias-Paco & Godoy, sp. nov.

(Figs. 7G–L, 9N, 10M, 11 AA, 12AA, 13AA)

Description. Length of male 4.51 mm. General appearance light brown with irregular transparent spots. Crown 1.4 x longer than basal width between eyes, light brown, with two longitudinal pale white bands in center, separated by black line that extends to two-thirds of crown’s length; after this point, bands merge to form single band at apex (Fig. 7G). Face entirely black, with two white transverse bands in shape of inverted V at apex of frontoclypeus, and faint white band on external margin of gena that extends to eye (Fig. 7I). Forewings light brown; clavus cells with irregular white spots, discal and anteapical cells with irregular white spots, with 9 veinlets (Fig. 7H); veins dark and light brown. Legs with black femora; light brown anterior and middle tibiae, black posterior tibiae, and light brown tarsi.

Male genitalia. Pygofer in lateral view rectangular, with rounded apex, multiple macrosetae at apex (Fig. 9N). Subgenital plate triangular, much wider at base than apex, longer than wide, with row of long thin setae at apex (Fig. 10M). Connective in ventral view in shape of wide U. Style in ventral view with apophysis short and rounded, without spines and with rounded internal margin; space between preapical lobe and apophysis C-shaped (Fig. 7J). Paraphyses fused at base, diverging slightly and gradually beyond midlength in ventral view, giving appearance of inverted V (Fig. 7J). Aedeagus in lateral view very short, L-shaped (Fig. 7K); preatrium absent; dorsal apodeme longer than shaft, straight toward apex; shaft straight and tubular, in apical view with two small lateral spines and third, larger dorsal spine in gonopore area (Fig. 7L). Gonopore in subapical position, at base of dorsal spine.

Diagnosis. Style apophysis in dorsal view without spine on internal margin and rounded in shape (Fig. 7J). Connective in shape of open U. Paraphyses fused at base, diverging slightly beyond midlength in dorsal view, forming inverted V (Fig. 7J). Dorsal apodeme longer than shaft and straight toward apex (in contrast to S. hansoni, which is curved) (Fig. 7K).

Distribution. Costa Rica.

Biology. Unknown.

Etymology. From the Latin vulcanus, because it was collected on the Cacao Volcano in Costa Rica.

Material examined. Holotype. ♂. Costa Rica, Guanacaste, Volcán Cacao . 1000–1400 m. VIII.1989. INBIO CRI000 029734 (MNCR).