Buca simplex Walker, 1858

Gnezdilov, Vladimir M., Bartlett, Charles R. & Bourgoin, Thierry, 2016, A new tribe of Tropiduchidae (Hemiptera: Fulgoroidea) with revision of the genus Buca and description of asymmetric hind leg spinulation, Florida Entomologist 99 (3), pp. 406-406 : 406-

Buca simplex Walker, 1858 ( Figs. 2 , 7 , 9 )

Emended diagnosis. Color dull yellowish, mid-dorsal vitta weak on mesonotum; forewings lacking dark coloration at apices. Trailing margin of forewings roundly convex, forewing venation with 2 branches of RP, ScP and RA fused, 6 branches of MP and 2 r-m crossveins. Gonostylus with convex hind margin. Ventral aedeagal hooks long and narrow. Male anal tube with convex lateral margins.

Supplementary description. Color. Body pale dull yellowish (possibly greenish in life; Muir 1931) with reddish mid-dorsal red to brown stripe following median carinae of coryphe and pronotum, weaker on midline mesonotum and commissural margin of forewings. Dark spot at middle of fastigium. Abdominal tergites IV-VI each with big median red spot. Structure. Body length (with wings; ♀ holotype) 9.3 mm [Bolivian male 8.0 mm], body length (without wings), 5.0 mm. Metope wide (L:W at widest point 1.14), sharply enlarged above clypeus (near level of antennae in frontal view), with distinct median carina running from fastigium to level of antennae, obsolete ventrad of antennae. Lateral margins of metope sharp, laterally projected, hiding scape in frontal view. Clypeus with carina absent. Coryphe broad ( Fig. 2D ), length at midline approximately equal to width (L:W ratio 0.91); lateral margins parallel; anterior margin of coryphe convex, posterior margin concave. Pronotum short with median carina, disc small, paranota narrow, acutely angulate, nearly reaching tegulae, without carinae. Mesonotum very large, approximately 7 times as long as pronotum medially (ratio of mesonotum length excluding scutellum to pronotum length = 7.04), with weak median and very weak lateral carinae. Forewings long (7.4 mm), extending well past end of abdomen, and wide (3.8 mm), apically rounded ( Fig. 2A ). Forewing venation: ScP+RA, 2 RP, 2 r-m, 2 MP1, 1 MP2, 1 MP3, 2 MP4, 1 m-cua, 1 CuA, distal cup-(pcu+a1) ( Fig. 7A ). Hind wing venation: RA, RP, r-m, 1 MP1, 1 MP2, m-cua1, 3 CuA1, CuA2, CuP, Pcu, 2A1, A2 ( Fig. 7B ). Nodal cells with C1 long and open, C2 closed, C3 not connected to both C2 and C4, C4 open, C5 absent by an impair CuA.

Male terminalia. Pygofer with slightly convex caudal margin. Phallus strongly curved in lateral view, dorsolateral phallothecal lobes fused and weakly sclerotized dorsally, each lobe with narrow subapical process; ventral phallothecal lobe not reaching apical phallotheca margin. Apical aedeagal processes with rounded apices, visible above phallothecal margin. Aedeagus with pair of long (2/3 aedeagal length) and narrow ventral hooks, apically acuminate. Gonostyli with long and narrow capitulum (in dorsal view), bearing a plate-shaped lateral tooth; hind margin of gonostylus convex, caudo-dorsal angle nearly right. Anal tube almost 3 times as long as wide, with convex lateral margins (in dorsal view), flattened (in lateral view). Paraproct long, almost 2.5 times as long as anal tube.

Remarks. Walker (1858) specifies the type locality as “Villa Nova” from the [Henry Walter] Bates collection.This locality is on the Amazon River and appears to be located at 3.3580°S, 64.7052°W in Estado do Amazonas. This species was previously re-described by Muir (1931).

Type material examined. Holotype, Brazil: “Villa / Nova” [round label, handwritten] “55 / 44” [backside of round label, indicating 1855, BMNH registry entry 44, i.e., “ Collector Mr Bates Purchased from Stevens ”] // “ Buca simplex ” (♀, BMNH).

Other material examined. Bolivia. Beni [Department], Rio Itenez / opposite Costa Marques / (Brazil), Sept. 4–6, 1964 / [J.K.] Bouseman & Lusenhop (13, LBOB) . Brazil. Amazonas [State], Manaos, Monacapuru / March 1928 / S.M. Klages (1♀, LBOB) .

Figures

Fig. 2. Buca simplex Walker (holotype); A) habitus, right lateral view; B) hind wing and abdomen, lef lateral view; C) metope and clypeus, frontal view; D) head and thorax, dorsal view.

Figs. 7 and 8. Wing venation. Fig. 7. Wing venation of Buca simplex Walker; A) forewing (holotype); B) hind wing (Bolivia). Annotations: A1, A2 = anal veins; B = basal cell; C1, C2, C3 (C3a, C3’, C3b), C4 = Cells 1-4; C = Costa; CA = anterior Costa; CP = posterior Costa; CuA = anterior Cubitus; CuP = posterior Cubitus; cup- (pcu+a1) = transverse vein from CuP to Cpu+A1 veins; im = intramedial crossvein; m-cu = medial-cubitus crossvein; MP = posterior Media; Pc = Precosta; PcA = anterior Precosta; Pcu = postcubitus; r-m = radial-media crossvein; R = Radius; RP = posterior Radius; ScP = posterior Subcosta. Fig. 8. Forewing venation; A) Buca asymmetrospinata sp. nov. (paratype); B) Buca truncoptera sp. nov. (holotype). Annotations: A1, A2 = anal veins; B = basal cell; C1, C2, C3 (C3a, C3’, C3b), C4, C5 = Cells 1-5; C = Costa; CA = anterior Costa; CP = posterior Costa; CuA = anterior Cubitus; CuP = posterior Cubitus; cup-(pcu+a1) = transverse vein from CuP to Cpu+A1 veins; im = intramedial crossvein; m-cu = medial-cubitus crossvein; MP = posterior Media; Pc = Precosta; PcA = anterior Precosta; Pcu = postcubitus; r-m = radialmedia crossvein; R = Radius; RP = posterior Radius; ScP = posterior Subcosta.

Figs. 9 and 10. Male terminalia and genitalia. Fig. 9. Male terminalia of Buca simplex Walker (Bolivia); A) terminalia, right lateral view (styli removed); B) dorsal view of anal tube and paraproct (distal margin downward);C) lef gonostylus (hind margin upward);D) detail view of gonostylus capitulum (in dorsal view). Fig. 10. Buca asymmetrospinata sp. nov. male genitalia (paratype);A) terminalia, right lateral view (styli removed); B) distal portion of phallus,ventral view; C) dorsal view of anal tube and paraproct (hind margin right); D) lef gonostylus (hind margin upward); E) detail view of gonostylus capitulum (in dorsal view).