Igerna Kirkaldy, 1903

Viraktamath, C. A. & Gonçalves, Ana Clara, 2013, Review of Madagascaran Agalliini (Hemiptera: Cicadellidae: Megophthalminae) with descriptions of a new genus and six new species, Zootaxa 3616 (1), pp. 1-21 : 7

Genus Igerna Kirkaldy, 1903

Igerna Kirkaldy 1903: 13 . Type-species, Pachynus bimaculicollis Stål , by original designation, replacement name for Pachynus Stål 1866 not Rafinesque 1815.

Remarks. Viraktamath (2011) recently gave a revised definition of the genus. Two out of the four Igerna species included here, I. neosa and I. flavocosta , have an asymmetrical aedeagus. Evans (1953) also dealt with Igerna bimaculicollis (Stål) . Examination of the material collected in this project revealed that the specimens previously recorded as I. bimaculicollis were in all likelihood misidentified.

Key to males of Igerna Kirkaldy, 1903 from Madagascar

1. Aedeagus with prominent ventral projection ( Figs 59–61 , arrow), shaft with ( Fig. 69 ) or without ( Fig. 67–68 ) one pair of sub- apical processes....................................................................................... 2

- Aedeagus without ventral projection ( Fig. 58 ), shaft with one pair of apical and one pair of subapical processes ( Fig. 66 )........................................................................................ Igerna delta sp. nov.

2. Aedeagal shaft bearing pair of laterobasal lamellate processes and pair of subapical ventrally directed processes ( Figs 60 , 69 )................................................................................ Igerna malagasica sp. nov.

- Aedeagal shaft lacking basal or subapical processes ( Figs 59, 61 , 67–68 )......................................... 3

3. Pygofer lobe with single caudodorsal elongated projection narrowing gradually towards apex ( Fig. 37 )................................................................................................... Igerna flavocosta sp. nov.

- Pygofer lobe with bifurcated caudodorsal short projection ( Figs 35 , 83 )........................... Igerna neosa (Webb)

Figures

FIGURES 54 – 61. Species of Madagascaran Agalliini. Aedeagus (except 57), lateral views: (54) Agallidwipa pauliana (Evans); (55) A. bispinosa sp. nov.; (56) A. biramosa sp. nov.; (57) A. webbi sp. nov., style, connective and aedeagus; (58) Igerna delta sp. nov.; (59) I. neosa (Webb); (60) Igerna malagasica sp. nov.; (61) I. flavocosta sp. nov., Arrows point out the ventral projection prominence.

FIGURES 62 – 69. Species of Madagascaran Agalliini. Aedeagus, ventral views (except 65 & 66): (62) Agallidwipa bispinosa sp. nov.; (63) A. biramosa sp. nov.; (64) A. webbi sp. nov.; (65) A. pauliana (Evans) aedeagus and connective, ventral view;; (66) Igerna delta sp. nov., dorsal view; (67) I. neosa (Webb); (68) I. flavocosta sp. nov.; (69) I. malagasica sp. nov.

FIGURES 34 – 41. Species of Madagascaran Agalliini. Genital capsules, lateral view: (34) Igerna delta sp. nov.; (35) I. neosa (Webb); (36) I. malagasica sp. nov.; (37) I. flavocosta sp. nov.; (38) Agallidwipa biramosa sp. nov.; (39) A. webbi sp. nov.; (40) A. bispinosa sp. nov.; (41) A. pauliana (Evans), Arrows point out posterior margin of pygofer.

FIGURES 70 – 85. Morphological aspects of Agallidwipa and Igerna species. (70 – 73) A. biramosa sp. nov.: (70) profemur; (71) apodemes of second abdominal sternite; (72) connective; (73) X segment processes, lateral view; (74 – 76) A. bispinosa sp. nov.: (74) forewing, lateral view; (75) connective; (76) X segment processes, lateral view; (77 – 79) A. pauliana (Evans): (77) apodemes of second abdominal sternite; (78) pygofer posterior margin; (79) X segment processes, lateral view; (80) A. webbi sp. nov., style and connective, dorsal view; (81 – 82) I. delta sp. nov.: (81) pygofer process, caudal view; (82) connective; (83) I. neosa (Webb), apex of pygofer process; (84 – 85) I. malagasica sp. nov.: (84) pygofer processes, caudal view; (85) connective.