Sakakibarella santaceciliae, Camacho & Flórez-V & Evangelista, 2017

Camacho, Luis F., Flórez-V, Camilo & Evangelista, Olivia, 2017, Notes on the genus Sakakibarella Creão-Duarte with description of three new species (Membracidae: Membracinae: Hoplophorionini), Zootaxa 4281 (1), pp. 90-107 : 102-106

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Sakakibarella santaceciliae


Sakakibarella santaceciliae Flórez-V & Camacho sp. nov.

Figures 7–8 View FIGURES 7 – 10 , 12–13 View FIGURES 11 – 13 , 20–21 View FIGURES 20 – 21 , 28–29 View FIGURES 28 – 29 , 41–46 View FIGURES 41 – 46 , 50–52 View FIGURES 47 – 52 , 56–57 View FIGURES 53 – 57

Diagnosis. Females with general color light brown variegated with brown and dark brown spots; posterior and external margins of maxillary plates describe an obtuse angle; pronotum with antero-dorsal process subquadrangular; pronotal dorsal margin distinctly sinuous. Males mostly black, with a small triangular anterodorsal protuberance, and sinuous median carina on dorsum.

Description. Holotype female. Color: Head brown with two light brown spots close to coronal suture, above supraantennal ledges, and internal margin of eyes; ventral surface dark brown; eyes dark brown with margins light brow, ocelli light brown. Pronotum light brown; metopidium brown with dark brown spots on supraocullar callosities, oblique to humeral angles, and ventral of base of anterior horn; anterior horn with dorsal margin dark brown, and one irregular dark brown spot around base extending above humeral angles; ventral margin of humeral angles dark brown; dorsum posterior to antero-dorsal process with brown spots; posterior process with large dark brown spot. Forewing membrane hyaline with dark brown spots on discoidal cell enclosed by both m-cu veins, and apex of 1/3 apical, speckled on fourth and fifth apical cell, base of discoidal cell R3 cell, and subapex of basal cell M; clavus with one dark brown spot medially and one on apical 1/3; sclerotized area on base of basal cell R dark brown, sclerotized area on base of clavus ochre; forewing dark brown spots extend to veins, else, veins ochre. Hindwing hyaline, apex smoky hyaline. Thoracic sternites and coxae dark brown. Femora, tibia and tarsomeres ochre. Metatibia translucent.

Sculpture: Pronotum densely and deeply punctate, each pit with one erect and golden seta associated on the middle; areas between pits in lateral area of pronotum thickened, forming irregular lines (according to the aspect could be observed as longitudinal lines, but not forming carinae). Body covered by golden pubescence, denser and larger on ventral margin of head, ventral surface of femora, antero- and posterolateral surface of pro- and mesotibiae. Forewing sclerotized area punctate; sclerotized area and veins with golden pubescence. Abdominal terga III–VII with antero-lateral margins with depressions accompanied by finger-shaped integumental thickening (in cleared terga the thickening looks as tubes directed internally); abdominal sternum, pleurites and ventral surface of pygofer with golden pubescence.

Head. In frontal view: width approximately 1/2 of distance between tips of humeral processes; eyes width approximately 1/4 of vertex width; ocelli closer to coronal suture than to eyes; vertex rectangular, medially convex; clypeus strongly curved posteriorly, with width slightly less than 1/2 of vertex width; suprantennal ledges wide and narrow, lateral external angle round, posterior margin slightly truncate, slightly curved forwards, and forming a continuous straight line with clypeus. In ventral view: frontoclypeus ellipsoidal, ventrally flattened, with feeble transversal carina at same level of suprantennal ledges; maxillary plates distinctly expanded, almost reaching postocular lobes and procoxae, lateral and posterior margin forming an obtuse angle; rostrum reaching posterior margin of metacoxae.

Thorax. In frontal view: humeral angles triangular, pronounced, dorsal process distinct. In lateral view: pronotum with antero-dorsal process sub-quadrangular, wider than longer, emerging right above postocular lobes, directed mostly upwards; median carina slightly elevated and percurrent from metopidium to apex of posterior process; metopidium straight to base of anterior horn; dorsum sinuous, steep-like posterior to antero-dorsal process, depressed above A2, slightly elevated and arched subapically; posterior process acute, extending well over the apical cell. In dorsal view: diamond shaped, lateral margins slightly sinuous, converging in an acute pointed posterior process. Forewing with two discoidal cells, one enclosed by bicurfation of R and r crossvein, and other by two m-cu crossveins. Hindwing with R3 of equal length than R5. Metafemur distinctly shorter and thinner than pro- and mesofemora. Tibiae lacking cucullate setae.

Abdomen: Dorsum of tergites III–VII with tuberosites; gonoplac with setae along postero-ventral margin, few small acanthae through surface. Second valvulae widening toward apex, subapically narrowing toward the subtriangular apex; dorsal margin smooth, with very small tooth on apical 1/3; ventral sculpture area with linear striae; ramus extended to apical 1/3; canals restricted to apical 1/3. First valvulae with ventral and dorsal margin parallels to subapex, then narrowing to the pointed apex; ventral and dorsal sculpture areas with linear striae; ramus extended almost to apex.

Males differ from females in the following features: Color: Mostly dark brown to black; metopidium with faint dark brown spot over supraocullar callosities; eye margins and ocelli yellow, legs yellow; forewings black, opaque, with translucid spots on base of discoidal cell R3 and apex of fifth apical cell. Surface: areas between pits in lateral area of pronotum thickened, forming irregular lines independent of the aspect. Head: width approximately 2/3 of the distance between tips of humeral angles; eye width approximately 1/3 of vertex width. Thorax: Pronotum with small and triangular antero-dorsal protuberance; in lateral view, dorsal margin sinuous, slightly gibbous above A2 and A3, then depressed, and slightly elevated and arched subapically. In dorsal view, lateral margins widely arched and converging to a pointed posterior margin. Abdomen: Aedeagus robust, cylindrical, U-shaped; posterior arm 2x as tall as anterior arm; posterior arm gradually widened from base to tip in anterior and caudal view; corona with numerous rows of scale-like spines near the anterior dorsal region of posterior arm. Gonopore subapical, more or less circular. Styles curved latero-ventrally, hooked apically. Subgenital plates with lobes finger-shaped.

Late-instar nymph unknown.

Remarks. Sakakibarella santaceciliae sp. nov. is similar in appearance to S. sinuosa . The posterior and external margins of the maxillary extensions in S. sinuosa form approximately a right angle, while in S. santaceciliae sp. nov. they are more obtuse. The antero-dorsal process in S. santaceciliae sp. nov. is strongly truncate, subquadrangular, while S. sinuosa has a round process which is more anteriorly projected. Males of S. santaceciliae sp. nov. can be distinguished from those of S. albinoi sp. nov. by the darker (blackish) coloration, slight antero-dorsal protuberance, and the sinuous dorsal margin. Live specimens of S. santaceciliae sp. nov. have green femora and tibiae. In females, there is variation in the size and color of the spots on the pronotum and forewing, either darker or lighter than the holotype, but the same spots are present in all specimens. Sakakibarella santaceciliae sp. nov. was found as an aggregation of 15 females and 1 male on the same plant stem. Five females were sitting on eggs, which were inserted into the plant tissue. Another female was close to an aggregation of nymphs. Nymphs feed from punctures in host plant tissue which were likely initiated by their mother. When these treehoppers were disturbed, females did not flee, but instead remained guarding their eggs.

Distribution. COLOMBIA. Risaralda: Pueblo Rico (Corregimiento Santa Cecilia—near PNN Tatamá), Longitude: -76.17357°, Latitude: 5.32033°

Measurements. Female/Male (mm): Body length: 8.34/5.98; pronotum length: 6.99/4.82; pronotum height: 2.90/1.78; forewing length: 6.57/4.90; distance between humeral angles: 4.16/3.03; head width: 2.24/1.82; vertex width: 1.58/1.15; vertex length: 0.97/0.74.

Examined material. Holotype female from COLOMBIA: Risaralda: Pueblo Rico: “ COLOMBIA. Risaralda, Pueblo Rico, \ Corregimiento Santa Cecilia, Área de \ Manejo Especial de Comunidades Negras \ Alto Amurrupá, 5,32033°N 76,17357°W, \ 600m, manual, bosque, 23-sep-2016 \ leg. C. Bota, C. Flórez \ CBUCES-F” (CBUCES). Paratypes (7♀ and 1♂ in total): 7♀ and 1♂ with same collection data as holotype (1♂ and 4♀ in CBUCES; and 3♀ in CEUA). GoogleMaps

Notes on type series. Holotype minuten mounted, in excellent state of preservation. Paratypes equally preserved, minuten mounted. One male and one female with dissected abdomens placed in vials with glycerine pinned with specimens.

Etymology. This species is named in honor of the Afro-Colombian community of Santa Cecilia (Risaralda- Pueblo Rico), located in the beautiful western flank of the ‘Cordillera Occidental’ of Colombia, near the Chocó region.