Heptagoniodes

Valim, Michel P. & Silveira, Luís F., 2014, A new species and five new records of chewing lice (Insecta: Phthiraptera: Ischnocera) from an isolated population of the solitary tinamou Tinamus solitarius (Aves: Tinamiformes), Zootaxa 3838 (1), pp. 127-142 : 131

Key to species of Heptagoniodes (adult males only)

(updated from Guimarães 1948)

1 Head with anterior margin of temples sharply pointed ( Fig. 4 ); mesosomal plate with lateral projections ( Figs 10, 12 )...... 2

- Head with anterior margin of temples rounded ( Fig. 3 ); mesosomal plate without lateral projections ( Fig. 11 )............. 4

2 Genitalia with mesosome as in Fig. 12 ................................................ H. guimaraesi Valim n. sp.

- Genitalia with mesosome as in Fig. 10..................................................................... 3

3 Total length <2.50 mm; mesosomal plate short (0.18 mm)............................. H. dimorphus Carriker, 1944

- Total length> 2.60 mm; mesosomal plate long (0.30 mm)....................... H. agonus (Nitzsch [in Giebel], 1866)

4 Post-ocular emargination very shallow, less pronounced; temples truncated. Mesosome as a sclerotized, tubular structure (see Plate XXX, figs 3, 3a, in Carriker, 1936)............................................. H. mirabilis Carriker, 1936

- Post-ocular emargination deep, well pronounced ( Fig. 3 ); temples nearly rounded ( Fig. 3 ). Mesosome as a non-sclerotized, rugose, tubular structure ( Fig. 11 )............................................ H. clayae Guimarães & Lane, 1937

Figures

FIGURES 3 – 8. 3, Heptagoniodes clayae dorso-lateral view of male head. 4, Heptagoniodes guimaraesi dorsal view of male head. 5, H. guimaraesi dorsal view of female head. 6, Kelloggia brevipes Carriker, 1903, dorsal view of male head. 7, Heptagoniodes guimaraesi dorso-lateral angle of female pterothorax. 8, Kelloggia brevipes dorso-lateral angle of female pterothorax. Abbreviations: ads, anterior dorsal seta; mts, marginal temporal seta; os, ocular seta; pas, preantennal seta; pos, preocular seta; pms, marginal pronotal setae; pns, postnodal seta; ppss, postspiracular pronotal seta; pts, post-temporal seta; vsms, ventral submarginal seta; s, head sensilla (1 – 6) (Arrows in Figs 3 – 4 indicate anterior margin of temples. Arrows in Figs 6 and 8 indicate serration of postero-lateral margin of pterothorax).

FIGURES 9 – 12. Male genitalia (dissected): 9, Kelloggia brevipes Carriker, 1903. 10, Heptagoniodes agonus. 11, Heptagoniodes clayae Guimarães & Lane, 1937. 12, Heptagoniodes guimaraesi. Scale bars = 0.05 mm.