Abbrosoga multispinosa Otero and Bartlett, 2019

Otero, Miriel & Bartlett, Charles R., 2019, A New Species of Abbrosoga (Hemiptera: Fulgoroidea: Delphacidae), An Endemic Puerto Rican Planthopper Genus, with an Updated Checklist of the Delphacidae of Puerto Rico, Zootaxa 4563 (2), pp. 372-386 : 377-380

Abbrosoga multispinosa Otero and Bartlett , n. sp.

( Figs 3 , 5 , 6 )

Type locality. Puerto Rico, Mayagüez, 18°13. 11N, 67°08.86W .

Diagnosis. This species can be separated from A. errata by having its thorax without median vitta and scutellum dark ( Fig. 3A ). Forewing clear between apices of Sc and RA ( Fig. 3C ). Frons broad ( Fig. 3B , frons l:w ratio ~1: 1.4–1.5). Male gonostyli distally without ventral hook in lateral view ( Fig. 3E , distally acute in caudal view); aedeagus ( Fig. 5B ) latitudinally subdivided into 3 processes plus subtending process; anal segment with dorsocaudal projection in lateral view.

Description. Color. General color light brown (paler ventrally), eyes dark reddish ( Fig. 1A ). Pronotum with small dark spot on each side of median carinae, scutellum darker than scutum. Macropterous forewings ( Fig. 3C ) clear with cubital area distally diffusely fuscous, with an elongated spot at the apex of the clavus, hind wings clear.

Structure. Body length 3.39–3.63 mm including wings (~ 2.23 mm without wings). Head. Head (dorsal view, including eyes) narrower than pronotum ( Fig. 3A ), in lateral view ( Fig. 3C ) slightly projected anteriorly. Vertex with conspicuous carinae (median carina weak but evident), vertex subquadrate, length 0.23–0.26 mm, width 0.22– 0.25 mm posterior margin truncate. Frons broad ( Fig. 3B ), widest near ventral margin of eyes; length 0.46 mm, width (at widest 0.31–0.32; l:w ratio 1: 1.4–1.5), narrowed both dorsally and toward frontoclypeal suture; median carina forking near fastigium. Clypeus as ¾ as long as frons, bearing median carina. Antennal scape small about as long (0.08–0.10 mm) as wide; pedicel about 2x length of scape (0.19–0.21 mm), bearing rows of rhinaria and small setae, flagellum elongate and bristle-like, about 2x length of pedicel. Thorax. Pronotum shorter than vertex (length at midline 0.17–0.20 mm); median carina distinct, lateral carinae diverging, nearly reaching posterior margin; posterior margin weakly concave. Mesonotum at midline about 3x length of pronotum (0.59–0.60 mm); lateral carinae slightly sinuate and weakly diverging, reaching posterior margin, median carina reaching posterior margin of scutellum. Wings macropterous, exceeding abdomen (forewing 2.67–3.01 mm); forewing venation ( Fig. 6 ) very similar to A. errata except CuA 3-branched. Nodal line appearing obsolete near CuA (not reaching wing margin). Metatibial spur large (0.33–0.34 mm), tectiform and smooth, bearing 27–30 fine, black-tipped teeth on trailing edge. Abdomen. Male terminalia ( Figs 3E, F , 5 ). Pygofer, in lateral view, roughly quadrate, much narrower dorsally than ventrally; anterior margin weakly concave, caudal margin weakly convex, without teeth or processes. In caudal view, pygofer opening with smoothly rounded margins; diaphragm developed, not strongly sclerotized; opening for gonostyli small, approximately oval. Diaphragm armature caudally projected with paired processes dorsally and midventral carina extending to opening at gonostyli. Aedeagus ( Figs 3E , 5B ), in lateral view, downcurved, with 2 elongate dorsal processes and a single elongate sinuate ventral process about 2/3 length of aedeagus; gonopore apparently at apex of aedeagus. Gonostyli, in caudal view ( Figs 3F , 5A ), weakly flattened, broad at base with basal angle blunt and distinct, distally rather forceps-like, converging to acute apex (in widest view), without ventral hook in lateral view. Anal tube small, rather truncate in lateral view, ventrocaudal processes absent, dorsocaudal angle (in lateral view) elongately projected; anal column about 2/3 as elongate as height of anal tube.

Remarks. Abbrosoga multispinosa externally is strongly similar to A. errata , although it is slightly more robust, with a broader vertex and frons. We note that the scutellum is dark in A. multispinosa (thorax without a pale median vitta), and pale in A. errata (thorax bearing a narrow pale median vitta), and the forewing in A. errata is infuscated near between the apices of the Sc and the RA, but not in A. multispinosa , at least among the specimens we have examined to date. The most definitive diagnostic features is the multiple-subdivided aedeagus of A. multispinosa as opposed to the simple aedeagus of A. errata .

Etymology. The species name is derived from the Latin word “ multus ” (much, more), truncated and joined with an -i to the Latin word “ spinosus ” (thorny), given a feminine termination to match Abbrosoga . The name is a reference to the form of the aedeagus.

Type material examined. “ PUERTO RICO / Mayagüez / 18°13.11N 67°08.86W / 5-6.X.2011 / Ex: Blacklight / Coll. A. Segarra // [red paper] HOLOTYPE / Abbrosoga / multispinosa Otero & Bartlett 2018 // UDCC _ TCN 00058470 ” (1 male, dissected, USNM). Paratype: same as holotype, except ‘paratype’ indicated and barcode label UDCC _TCN 0 0 0 58469 .

......continued on the next page

Figures

FIGURE 1. Abbrosoga errata Caldwell, male holotype except D (Maricao State Forest); A. dorsal habitus, B. front, C. lateral habitus, D. hind leg and metatibial spur, ventral view, E. labels.

FIGURE 3. Abbrosoga multispinosa Otero and Bartlett, male paratype, Mayagüez, P.R. A. dorsal habitus, B. front, C. lateral habitus, D. dorsal view, head and thorax, E. male terminalia, lateral view, F. male terminalia, caudal view, G. lateral view, head and thorax.

FIGURE 5. Abbrosoga multispinosa Otero and Bartlett, male genitalia, line art, A. left gonostylus, widest view; B. aedeagus, left lateral view (slightly rotated clockwise).

FIGURE 6. Abbrosoga multispinosa Otero and Bartlett, wing venation (from left wing of paratype).