HALLODAPINI, Van Duzee, 1916

Wyniger, Denise, Schuh, Randall T. & Henry, Thomas J., 2023, Revision of the North American Hallodapini (Insecta: Hemiptera: Heteroptera: Miridae: Phylinae), American Museum Novitates 2023 (3994), pp. 1-48 : 5-7

NORTH AMERICAN HALLODAPINI

(Brachypterous males may be associated with the respective species based primarily on male genitalia, in combination with distribution and certain diagnostic characters; females may be recognized only by their association with males)

1. Transverse fascia on hemelytra more less parallel sided, although sometimes uneven and/or broken (figs. 1–3) Cyrtopeltocoris ..........................................................2

– Transverse fascia on hemelytra formed by two roughly triangular markings with their apices directed toward the midline (fig. 7) ( Neocyrtopeltocoris )..................................14

2. Scutellum in male in the form of an elongate, heavy spine, curving posteriorly (fig. 2); head more or less spherical in dorsal view; posterior margin of eye not reaching posterior margin of head; eyes removed from anterior margin of pronotum by about the length of an eye as measured from above (fig. 2); Illinois ...................................................... C. illini Knight

– Scutellum in male sometimes swollen, moderately elevated or conical but never in the form of a spine as above; head transverse and somewhat triangular as viewed from above, never globose; posterior margin of eye reaching posterior margin of head and attaining level of anterior margin of pronotum.........................................................................3

3. Pronotum laterally smooth, devoid of setae, in contrast to weakly rugose medial portion with short, recumbent setae................................................................4

– Pronotum of nearly uniform texture and vestiture over entire surface.......................5

4. Base of clypeus and front edge of frons even, forming a smooth arch; right paramere relatively elongate and slender; endosoma as in fig. 3; Baja California Norte and Sur, Mexico, and southern California....................................................... C. nudipronotum , n. sp.

– Base of clypeus lower than front edge of frons, forming a distinct notch, best viewed in lateral aspect; right paramere (fig. 4) large and broad; endosoma (fig. 4); USA: southern Arizona (brachypterous males known; fig. 1)............................................. C. ajo Knight

5. Transverse hemelytral fascia offset and/or broken at claval suture (figs. 1–3).................6 – Transverse hemelytral fascia continuous, not offset or broken at claval suture (figs. 1–3)....... 8

6. Overall coloration dark brown to castaneous; white mark anterior to cuneus quadrate to elongate, stopping well short of inner corial margin bordering hemelytral membrane; ostiolar evaporative area reddish brown...................................................................7

– Overall coloration reddish brown; white mark anterior to cuneus quadrate, extending nearly to inner corial margin (fig. 1); ostiolar evaporative area white; Cuba.......... C. cubanus Poppius

7. Smaller species, total length 3.46 mm; transverse hemelytral fascia offset and broken at claval suture (fig. 2); endosoma (fig. 4); Baja California Sur, Mexico.......... C. fractifasciatus , n. sp.

– Larger species, total length 3.95 mm; transverse hemelytra fascia offset, but not broken at claval suture (fig. 3); endosoma (fig. 5); Baja California Sur, Mexico............. C. pronotosus , n. sp.

8. Ostiolar evaporative area white.........................................................9

– Ostiolar evaporative area reddish brown................................................11

9. Base of clypeus lower than front edge of frons, forming a distinct notch, best visible in lateral aspect; white mark anterior to cuneus not reaching inner margin of corium bordering hemelytral membrane; endosoma with a laterally dentate membranous lobe apically, and ending in a birdhead-like dentate membranous apex, but lacking a sclerotized band as seen in C. albofasciatus ; Arizona ........................................................... C. huachucae Knight

– Base of clypeus even with front edge of frons, forming a smooth arch; white mark anterior to cuneus nearly extending to inner margin of corium......................................10

10. Transverse hemelytral fascia broad, length subequal to length of brown area across base of corium and clavus (fig. 3); scutellum relatively flat, only slightly convex; white mark anterior to cuneus quadrate, width subequal to length; Baja California, Mexico, and Arizona and southern California..................................................... C. mexicanus Carvalho and Costa

– Transverse hemelytral fascia much narrower, not nearly subequal to length of dark area across base of corium and clavus (fig. 2); scutellum strongly conical, nearly attaining height of pronotum, best viewed in lateral aspect; white mark anterior to cuneus elongate, much wider than long; eastern United States................................................. C. gracilentis Knight

11. Pronotum at least partially polished, although sometimes rugulose; coloration of appendages variable, usually paler reddish brown or yellowish brown....................................13

– Pronotum entirely granular and dull; all appendages dark reddish brown...................12

12. Antennal segments II–IV with numerous erect setae longer than diameter of segments; pronotum almost flattened, best viewed in lateral aspect (fig. 2); apical membrane of endosoma bearing a dartlike spine (fig. 4) Baja California Sur, Mexico...................... C. hallodapoides , n. sp.

– Antennal segments II–IV with short, recumbent vestiture; pronotum distinctly convex, best viewed in lateral aspect (fig. 1); apex of endosoma without dartlike spine as above; Oaxaca, Mexico............................................................. C. brailovskyi , n. sp.

13. Head, pronotum, and scutellum reddish brown, contrasting with a darker brown cuneus and posterior half of corium; vertex broad, eyes small (fig. 3) in dorsal view; margins of transverse hemelytral fascia and white mark anterior to cuneus diffuse or indistinct (fig. 3); legs pale yellowish brown, often tinged with red or reddish brown; endosoma robust, apex becoming acuminate beyond secondary gonopore with a triangular flap (fig. 5); Arizona, California, and Nevada ........................................................................ C. rubripes (Knight)

– Head, pronotum, and scutellum uniformly dark brown to dark reddish brown; vertex less broad, eyes proportionately larger (fig. 1); margins of transverse fascia and white mark anterior to cuneus sharp, well defined; legs uniformly dark reddish brown; endosoma relatively slender, with a sclerotized band distad of secondary gonopore and a membranous flaplike apex (fig. 4); Mexico and southwestern United States......................................... C. albofasciatus Reuter

14. General coloration of dorsum usually strongly orange to reddish orange; cuneus darker reddish orange (fig. 7); larger mean total length 3.66 mm; southwestern United States................................................................................. N. triangularis (Knight)

– General coloration of dorsum dark brown, weakly contrasting with the dark reddish-brown cuneus (fig. 7); smaller mean total length 2.97 mm; northwestern Missouri ........ N. froeschneri , n. sp.