Ceratagallia Kirkaldy 1907
Creators: name: Pinedo-Escatel, J. A.
name: Dietrich, C. H.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Ceratagallia

description: Key to males of Ceratagallia from Mexico
Note. C. emarginata Hamilton excluded, only female known.
1 Subgenital plates longer than wide, free at least in distal half; lateral margin of style usually with long setae........................................................................................ subgenus Ceratagallia Kirkaldy, 2
- Subgenital plates short and broad, almost entirely fused, divided only at apex; style without conspicuous setae..................................................................................... subgenus Aceratagallia Kirkaldy, 7
2 Style apex with both lateral and medial margin acutely produced................................................ 3
- Style with medial margin obtusely angulate................................................................. 4
3 Aedeagus with shaft distinctly shorter than atrium......................................... gillettei (Osborn & Ball).
- Aedeagus with shaft distinctly longer than atrium................................................ sordida (Oman)
4 Connective longer than aedeagal shaft, aedeagal shaft shorter than atrium........................................ 5
- Connective shorter than aedeagal shaft; aedeagal shaft at least as long as atrium.................................... 6
5 Style with ventral tooth located basad of widened apex; apex twice as wide as narrowest preapical width...................................................................................................... tergata (Van Duzee)
- Style with ventral tooth located at base of widened apex, apex less than 1.5 times as wide as narrowest preapical width............................................................................................ bigeloviae (Baker)
6 Apex of aedeagus in lateral view curved, directed anteriorly.......................................... ana Hamilton
- Apex of aedeagus in lateral view straight, directed dorsocaudally................................. brailovskyi sp. nov.
7 Aedeagus with shaft short and robust, inflated near base (Hamilton 1998: Fig. 133)............................... 18
- Aedeagus with shaft slender, not inflated near base, length variable (Hamilton 1998: Fig. 122)........................ 8
8 Aedeagus with elongated preatrium...................................................................... 9
- Aedeagus preatrium poorly developed or absent............................................................ 10
9 Aedeagal shaft partially straight with strong curved apex....................................... uhleri (Van Duzee)
- Aedeagal shaft slightly curved without abrupt apex.............................................. oionus Hamilton
10 Posterior margin of subgenital plates as wide as anterior margin (Hamilton 1998: Fig. 39), apex quadrate............... 16
- Posterior margin of subgenital plates distinctly narrower than anterior margin (Hamilton 1998: Fig. 18), apex conical..... 11
11 Apophysis of style 2.0-2.2 times as long as aedeagal shaft........................................ venosa Hamilton
- Apophysis of style less than 1.5 times as long as aedeagal shaft................................................ 12
12 Forewing stramineous with brown markings............................................................... 13
- Forewing almost uniformly black............................................................. ebena Hamilton
13 Mesal margin of style straight, apex angled................................................................ 14
- Mesal margin of style convex preapically (Hamilton 1998: Fig. 75), apex truncate................... californica (Baker)
14 Subgenital plates together longer than their maximum width............................... sanguinolenta (Provancher)
- Subgenital plates together shorter than their maximum width.................................................. 15
15 Style abruptly broadened preapically, inner apical margin rounded............................ aratra (Nielson & Maes)
- Style slightly and evenly broadened toward apex, inner apical margin acute..................... cinerea (Osborn & Ball)
16 Aedeagal shaft dorsal margin forming 90º angle with atrium, moderately straight to midlenth, thence curved dorsad............................................................................................... falcata Hamilton
- Aedeagal shaft dorsal margin forming ~45° with atrium, straight or evenly curved through most of length.............. 17
17 Style apophysis as long as base; pygofer appendage directed caudoventrally........................... nanella (Oman)
- Style apophysis not as long as base; pygofer appendage directed ventrally..................... minuta (Nielson & Maes)
18 Aedeagus in lateral view with shaft distinctly constricted near base (Hamilton 1998: Fig. 135)............ entoma Hamilton
- Aedeagus in lateral view with shaft evenly tapered from base to near apex (Hamilton 1998: Fig. 133)..................................................................................................... brevis (Nielson & Maes)
description: Published as part of Pinedo-Escatel, J. A. & Dietrich, C. H., 2017, A new species of the genus Ceratagallia (Cicadellidae: Megophthalminae) from Central Mexico, pp. 293-300 in Zootaxa 4347 (2) on pages 298-299, DOI: 10.11646/zootaxa.4347.2.5, http://zenodo.org/record/1045705