Oncometopia unispina, Rakitov, Roman, 2016

Rakitov, Roman, 2016, The Oncometopia orbona species group (Hemiptera, Cicadellidae, Proconiini), Zootaxa 4168 (1), pp. 109-133 : 111

Key to species of the Oncometopia orbona group

(females of O. unispina sp. n. are unknown)

1 Males............................................................................................... 2

- Females............................................................................................. 8

2 Ventral surface of aedeagal shaft with bulging subapical expansion bearing spinelike process ( Fig. 2 B, C).... O. orbona (F.)

- Ventral surface of aedeagal shaft without bulging expansion, subapical spinelike process attached to shaft directly or via mem- branous stalk.......................................................................................... 3

3 Aedeagus in lateral view approximately as long as tall; dorsal margin of base long, broadly concave on transition between atrium and shaft; shaft in caudal view expanded in basal half, uniformly narrow in apical half......................... 13

- Aedeagus in lateral view taller than long; dorsal margin of base indistinct or short, without distinct broad concavity on transi- tion to shaft; shaft in caudal view not as above............................................................... 4

4 Aedeagal shaft strongly compressed laterally, in lateral view at least twice as wide as in caudal view ( Fig. 9 H, J); lateral margin of subgenital plate concave at midlength ( Fig. 9 J).............................................. O. acicularis sp. n.

- Aedeagal shaft at least as wide in caudal as in lateral view; lateral margin of subgenital plate concave proximally of midlength or nearly straight...................................................................................... 5

5 Aedeagal shaft in caudal view expanded in apical portion ( Fig. 8 C)................................... O. obtusa (F.)

- Aedeagal shaft in caudal view widest in lower portion or parallel-sided........................................... 6

6 Process of shaft attached near apex of shaft, on short membranous stalk or without stalk ( Figs. 6 J, K, N–T).................................................................................................... O. clarior (Walker)

- Process of shaft attached in basal half of shaft, on long membranous stalk ( Figs. 10 I, J, 11J, K, 12, E, F)................ 7

7 Process of atrium with short spine ( Fig. 12 E, F)................................................ O. unispina sp. n.

- Process of atrium without spine ( Figs. 10 I, J, 11J, K)............................... O. lepida sp. n. or O. pelvica sp. n.

8 Sternum VII without median longitudinal carina, with preapical depression; posterior margin with median lobe angularly pro- duced, 1– 2x wider than long ( Fig. 9 M). Genital chamber sclerites mushroom-shaped ( Fig. 9 K–N)....... O. acicularis sp. n.

- Sternum VII slightly carinate along median line, without preapical depression; posterior margin with median lobe broadly con- vex, 3– 6x wider than long. Genital chamber sclerites different or absent...........................................9

9 Sternum VIII sclerite(s) present......................................................................... 10

- Sternum VIII sclerite(s) absent.......................................................................... 11

10 Vestibulum not produced posteriorly. Sternum VIII sclerites transverse, sculptured with oblique ridges, often merged into sin- gle deltoid sclerite, in dorsal view convex ( Fig. 2 H)............................................... O. orbona (F.)

– Vestibulum produced into subrectangular posterior extension. Sternum VIII sclerite unpaired and unsculptured, in dorsal view concave along midline ( Fig. 11 R)............................................................. O. pelvica sp. n.

11 Genital chamber sclerites thimble-shaped, converging anteriorly, attached to anterior ends of 1st valvulae ( Fig. 10 L, M).............................................................................................. O. lepida sp. n.

- Genital chamber sclerites deltoid, attached to 1st valvulae posteriorly of their anterior ends...........................12

12 Posterior extension of vestibulum pouch-like, extending laterally and posteriorly beyond genital chamber sclerites ( Fig. 7 B, E, N). Genital chamber sclerites attached to 1st valvulae anteriorly of articulation with 1st valvifer, their posterior ends not forming loop, dorsolateral margins not undulate ( Figs. 7 C, F, G, 8H)......................... O. clarior (Walker) or O. obtusa (F.)

- Posterior extension of vestibulum narrow, delimited by genital chamber sclerites forming its ventrolateral walls. Genital cham- ber sclerites attached to 1st valvulae at the level of articulation with 1st valvifer, posteriorly fused into distinct median loop, their dorsolateral margins undulate ( Figs. 3K , 4 O)............................................................... 13

13 Crown, pronotum, and mesonotum with well developed pattern of black markings ( Fig. 1 I–P); Florida and South Georgia....................................................................................... O. nigricans (Walker)

- Without black pattern or with few small poorly distinct markings ( Fig. 1 Q–X); southeastern Texas to Veracruz .................................................................................................. O. hamiltoni sp. n.

Figures

FIGURE 1. Dorsal views: A – H, Oncometopia orbona (F.): A, specimen from Illinois, Champaign (INHS); B, Georgia, Americus (UGCA); C, Georgia, Athens (UGCA); D, Louisiana, Tallulah (TAMU); E, Texas, College Station (TAMU); F, South Carolina, James Island (TAMU); G, Missouri, Lawrence Co. (INHS); H, Georgia, Perry (UGCA); I – P, Oncometopia nigricans (Walker): I, specimen from Florida, Tampa (TAMU); J, Florida, Fort Island Beach (USNM); K, Florida, Princeton (INHS); L, Florida, Key Largo (NCSU); M, Florida, Gainesville (NCSU); N, Florida, Florida City (TAMU); O, Georgia, St. Simons Island (UGCA); P, Georgia, Sapelo Island (UGCA); Q – X, Oncometopia hamiltoni sp. n.: Q, holotype from Texas, Bexar Co. (USNM); R, specimen from Texas, San Antonio? (USNM); S, Texas, Pearsall (TAMU); T, Texas, Rockport (INHS); U, Mexico, Nuevo Leon (TAMU); V, Mexico, San Luis Potosí (TAMU); W, Mexico, Veracruz (TAMU); X, from same locality (TAMU).

FIGURE 2. Oncometopia orbona (F.): A, head and pronotum of specimen from Georgia, Perry (UGCA); B – F, specimen from Georgia, Thomasville (UGCA): B, aedeagus with dorsal apodemes (hatched) in caudal view; C, same in lateral view; D, subgenital plate, connective, and style in dorsal view; E, pygofer process in lateral view; F, same in ventral view; G – L, specimen from Louisiana, Frierson (USNM): G, sternum VII; H, ovipositor base in dorsal view, with vestibulum membrane dotted and sternum VIII sclerite shaded (1 val, 1 st valvula; 2 val, 2 nd valvula; 1 vf, 1 st valvifer); I, bases of 1 st valvulae in ventral view; J, same in dorsal view; K – L, female from Illinois, Massac Co. (INHS): K, 1 st valvula (with base indicated by arrow); L, same, apex; M – N, female from Georgia, Thomasville (UGCA): M, 2 nd valvula; N, same, apex.

FIGURE 4. Oncometopia hamiltoni sp. n.: A, head and pronotum of specimen from Texas, Rockport (INHS); B, aedeagus in caudal view, holotype, from Texas, Bexar Co. (USNM); C – J, aedeagus in lateral view: C, holotype; D, specimen from Texas, Kenedy Co. (TAMU); E, Texas, Corpus Christi State Recreational Area (TAMU); F, Texas, Brownsville (TAMU); G, Mexico, San Luis Potosí (TAMU); H, Mexico, San Luis Potosí (TAMU); I, Mexico, Veracruz (TAMU); J, Mexico, Veracruz (TAMU); K – M, holotype: K, pygofer process in ventral view; L, same in dorsal view; M, subgenital plate, connective, and style in dorsal view; N, O, paratype, from Texas, Bexar Co. (USNM): N, sternum VII; O, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites (shaded) and bases of 1 st valvulae; P, bases of 1 st valvulae in ventral view; R, distribution map.

FIGURE 6. Oncometopia clarior (Walker): A – H, dorsal views: A, male from Mexico, Chiapas (INHS); B, male from Mexico, Chiapas (INHS); C, female from Mexico, Tamaulipas (TAMU); D, female from Mexico, Oaxaca (TAMU); E, male from Mexico, Chiapas (EMEC); F, female from Guatemala (USNM); G, male from Costa Rica (INHS); H, male from Costa Rica (EMEC); I – L, lectotype from “ Carolina ” (ZMUK): I, head and anterior pronotum; J, aedeagus with dorsal apodemes (hatched) in lateral view; K, same in caudal view; L, subgenital plate, connective, and style in dorsal view; M – O, specimen from Guatemala (AMNH): M, pygofer process in lateral view; N, aedeagus in lateral view; O, same in caudal view; P – R, specimen from Mexico, Guerrero (USNM): P, aedeagus with dorsal apodemes (hatched) in lateral view; Q, same in caudal view; R, same in anterior view; S – V, specimen from Mexico, Oaxaca (EMEC): S, aedeagus with dorsal apodemes (hatched) in lateral view; T, same in caudal view; U, subgenital plate, connective, and style in dorsal view; V, pygofer process in lateral view.

FIGURE 7. Oncometopia clarior (Walker): A – D, specimen from Guatemala (AMNH): A, sternum VII; B, vestibulum in dorsal view (membrane dotted); C, genital chamber sclerites and posterior extension of vestibulum in dorsal view; D, bases of 1 st valvulae in ventral view; E – F, specimen from Mexico, Chiapas (TAMU): E, vestibulum in dorsal view (membrane dotted); F, genital chamber sclerites and posterior extension of vestibulum in dorsal view; G, same, specimen from Mexico, Veracruz (TAMU); H, genital chamber sclerites in dorsal view, specimen from Mexico, Yucatan (AMNH); I, vestibulum in dorsal view (membrane dotted), specimen from Mexico, Oaxaca (EMEC); J, genital chamber sclerites and posterior extension of vestibulum in dorsal view, same specimen; K, same, specimen from Mexico, Oaxaca (EMEC); L, bases of 1 st valvulae in ventral view, specimen from Mexico, Oaxaca (EMEC); M, genital chamber sclerites and posterior extension of vestibulum in dorsal view, specimen from Mexico, Oaxaca (TAMU); N – O, holotype of Oncometopia badia (Walker) (BMNH): N, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites and bases of 1 st valvulae; O, bases of 1 st valvulae in ventral view.

FIGURE 8. Oncometopia obtusa (F.): A – B, specimen from Trinidad (INHS): A, head and pronotum; B, dorsal view; C – F, specimen from Tobago (USNM): C, aedeagus in caudal view; D, same in lateral view; E, pygofer process in lateral view; F, subgenital plate, connective, and style in dorsal view; G – I, specimen from Trinidad (USNM): G, sternum VII; H, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites and bases of 1 st valvulae; I, bases of 1 st valvulae in ventral view.

FIGURE 9. Oncometopia acicularis sp. n.: A, head and pronotum of holotype, from Mexico, Tamaulipas (UGCA); B – E, dorsal views: B, holotype; C, paratype female, same locality (UGCA); D, female from Mexico, Tamaulipas (TAMU); E, female from Mexico, Veracruz (TAMU); F – J, holotype, from Mexico, Tamaulipas (UGCA): F, pygofer process in lateral view; G, same in ventral view; H, aedeagus in lateral view; I, same in caudal view; J, subgenital plate, connective, and style in dorsal view; K – M, paratype from Mexico, Tamaulipas (UGCA); K, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites (shaded) and bases of 1 st valvulae, specimen from Mexico, Tamaulipas (UGCA); L, bases of 1 st valvulae and genital chamber sclerites (shaded) in ventral view; M, sternum VII; N, genital chamber sclerites (shaded) and posterior extension of vestibulum, specimen from Mexico, San Luis Potosí (KSEM); O, distribution map.

FIGURE 10. Oncometopia lepida sp. n.: A, head and pronotum of paratype, from Mexico, Oaxaca (INHS); B – F, dorsal views: B – C, paratypes, same locality (INHS); D, female from Mexico, Chiapas (EMEC); E, female from Mexico, Guerrero (TAMU); F, female from Mexico, Chiapas (TAMU); G – K, paratype: G, pygofer process in lateral view; H, same in ventral view; I, aedeagus in lateral view; J, same in caudal view; K, subgenital plate, connective, and style in dorsal view; L – N, holotype, from Mexico, Oaxaca (INHS): L, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites (shaded) and bases of 1 st valvulae; M, bases of 1 st valvulae and genital chamber sclerites (shaded) in ventral view; N, sternum VII; O – P, specimen from Mexico, Chiapas (EMEC): O, vestibulum in dorsal view (membrane dotted); P, genital chamber sclerites and posterior extension of vestibulum atop of bases of 1 st valvulae; Q, distribution map.

FIGURE 11. Oncometopia pelvica sp. n.: A, head and pronotum of paratype, from Mexico, Sinaloa (EMEC); B – I, dorsal views: B, paratype; C, holotype, from Mexico, Sinaloa (EMEC); D, female from Mexico, Oaxaca (TAMU); E, female from Mexico, Oaxaca (EMEC); F, female from Mexico, Sinaloa (TAMU); G, female from Mexico, Morelos (EMEC); H, female from Mexico, Guerrero (TAMU); I, female from Mexico, Sonora (INHS); J – P, paratype: J, aedeagus with dorsal apodemes in lateral view; K, same in caudal view; L, aedeagus with dorsal apodemes and ejaculatory duct in anterior view; M, subgenital plate, connective, and style in dorsal view; N, base of subgenital plate and style in lateral view; O, pygofer process in lateral view; P, same in ventral view; Q – S, holotype: Q, sternum VII; R, ovipositor base in dorsal view, with vestibulum membrane dotted and sternum VIII sclerite shaded; S, bases of 1 st valvulae in ventral view; T, distribution map.

FIGURE 12. Oncometopia unispina sp. n.: A, head and pronotum, paratype male from Costa Rica (INBIO); B – D, dorsal views: B, holotype, from Costa Rica (TAMU); C, paratype from Costa Rica (INBIO); D, paratype from Costa Rica (INBIO); E – F, holotype: E, aedeagus in caudal view; F, same in lateral view.

FIGURE 3. A – L: Oncometopia nigricans (Walker): A, head and pronotum of specimen from Florida, Tampa (TAMU); B, aedeagus with dorsal apodemes (hatched) in caudal view, specimen from Florida, Longwood (USNM); C – I, aedeagus in lateral view: C, specimen from Florida, Longwood (USNM); D, Florida, Key Largo (NCSU); E, Florida, Key Largo (UGCA); F, Florida, Key Largo (NCSU); G, Florida, Key Largo (NCSU); H, Florida, Princeton (INHS); I, Tennessee, " L. O. Mountain " (INHS); J – L, specimen from Florida, Duval Co. (USNM): J, sternum VII; K, ovipositor base in dorsal view, with vestibulum membrane (dotted) partly removed to expose genital chamber sclerites (shaded) and bases of 1 st valvulae; L, bases of 1 st valvulae in ventral view; M – N, Oncometopia orbona x nigricans, specimen from Florida, Jacksonville (USNM): M, ovipositor base in dorsal view, with sternum VIII sclerites (shaded) and vestibulum membrane (dotted) partly removed to expose genital chamber sclerites (shaded) and bases of 1 st valvulae; N, bases of 1 st valvulae in ventral view.