Oropedium, Flórez-V, 2022

Flórez-V, Camilo, 2022, A new genus and a new species of treehopper (Hemiptera: Membracidae) from the páramo of Tatamá in Colombia, Zootaxa 5195 (2), pp. 143-154 : 149-153

Key to tribes of Membracinae (including Oropedium gen. nov. in incertae sedis)

1. Forewing vein R initially divided into R 1 and Rs ( Fig. 5H, 5J , 6A, 6C )........................................... 2

1’. Forewing vein R initially divided into R 1+2+3 and R 4+5 ( Fig. 3C , 5G, 5I , 6B )....................................... 3

2 (1). Pronotum with latero-apical carinae ( Fig. 5J ); metathoracic tibia club-shaped, dilated apically; metathoracic tarsus shorter than pro- and mesothoracic tarsi...................................................................... Talipedini

2’. Pronotum lacking latero-apical carinae ( Fig. 5H ); metathoracic tibia with anterolateral and posterolateral margins subparallel or slightly dilated apically (except clavate in Havilandia Dietrich and McKamey ); pro-, meso- and metathoracic tarsi subequal in length................................................................................... Membracini

3 (1’). Metathoracic tibia clavate, metathoracic tarsus distinctly shorter than pro- and mesothoracic tarsi ( Fig. 6B )..................................................................................................... Hoplophorionini

3’. Metathoracic tibia not clavate ( Fig. 3C ), or, if slightly expanded apically, then tarsus subequal in length to that of prothoracic leg................................................................................................. 4

4 (3’). Forewing with apical limbus extended over clavus ( Fig. 5I ); lateral margins of pronotum covering portions of apical limbus and veins of forewing (except Cladonota ); abdominal terga coarsely pitted ( Fig. 6E ) (although finer in Cladonota ; Fig. 6F ).............................................................................................. Hypsoprorini

4’. Forewing with apical limbus not extended over clavus ( Fig. 5G ); lateral margins of pronotum covering at most part of apical limbus of forewing; abdominal terga finely punctuated ( Fig. 4C )............................................... 5

5 (4’). Pronotum usually with anterior process, metopidium forming an acute angle with dorsal outline, pronotum without lateral carinae ( Fig. 5G )............................................................................ Aconophorini

5’. Pronotum plateau-shaped, lacking anterior process, metopidium forming an angle of 90º with dorsal outline, lateral carina extended from above metopidium almost to humeral angles ( Fig. 3B–C )............................................................................................. Oropedium tatamaense sp. nov. [ Membracinae incertae sedis]

Figures

FIGURE 3. Oropedium tatamaense sp. nov. A) Frontal view, B) dorsal view, C) lateral view, D) frontolateral view. lc: lateral carinae.

FIGURE 4. Male abdomen and genitalia of Oropedium tatamaense sp. nov.: Abdomen views: A) Dorsal, B) ventral, C) lateral. Pygofer views: D) ventral, E) lateral. Subgenital plate views: F) ventral, G) dorsolateral. Styles views: H) ventral, I) dorsal, J) lateral. Aedeagus views: K) lateral, L) posterolateral, M) anterolateral, N) caudal. tr: transversal ridge.

FIGURE 5. Some important morphological traits in Membracinae. Frontal view: A) Aconophora flavipes (Aconophorini), B) Enchenopa concolor (Membracini), C) Philya sp. (Hypsoprorini), D) Talipes fenestratus (Talipedini), E) Bolbonota sp. (Membracini). F) Alchisme grossa (Hoplophorionini). Lateral view: G) A. flavipes, H) E. concolor, I) Philya sp., J) T. fenestratus. ac: accessory carinae; apl: apical limbus; cl: clavus; fc: frontoclypeus; ha: humeral angles; irr: irregular carinae; lap: lateral apical carina; lc: lateral carina; Rb: vein R bifurcation; sa: supra-antennal ledges; shc: suprahumeral carina; *: extra-crossveins.

FIGURE 6. Some important morphological traits in Membracinae. Lateral view: A) Bolbonota sp. (Membracini); B) Alchisme grossa (Hoplophorionini), C) Leioscyta cf. spiralis (Membracini). Lateral view abdomen: D) Bolbonota sp.; E) Notocera crassicornis (Hypsoprorini); F) Cladonota apicalis (Hypsoprorini). mst: mesothoracic tarsus; mtt: metathoracic tarsus.