“Gonaphodielliform” genera, Latreille, 1802

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2012, Systematic revision of Gonaphodiellus taxa, with description of two new genera and fourteen new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2012 (230), pp. 1-41 : 2

Key to “Gonaphodielliform” genera

1. First joint of labial palps as long as second ( Fig. 50-51 ); clypeus subtruncate anteriorly or very feebly sinuate at middle, round at sides; elytra oval, more or less broadened posteriorly, finely striate; body feebly or, at most, moderately convex; mostly medium size species (length 5.0- 6.0 mm). Taxa more or less dark brownish, with or without paler elytral spots. Neotropical region ................................................................................................ Gonaphodiellus Schmidt

— First joint of labial palps longer than second ( Fig. 69 , 117 ); body more convex; mostly rather small species (length 4.0-5.0 mm) .............................................................................................. 2

2(1). Clypeus deeply sinuate at middle, angulate at sides; elytra subparallel-sided or oval elongate, finely striate; body more or less distinctly convex. Taxa chestnut brown or reddish testaceous, rarely blackish. Neotropical region ........................................... Gonaphodioides new genus

— Clypeus feebly sinuate at middle, round at sides; elytra amygdaliform, deeply striate; body strongly convex. Taxa piceous or reddish brown, usually with pronotum and elytral disc darker. Mexico........................................................................................... Gonaphodiopsis new genus

Figures

Figure 43-56. Gonaphodiellus opisthius (Bates, 1887) (Zacualtipan, Hidalgo, Mexico). 43) Epipharynx. 44- 47) Habitus (length ideogram, color variations and morphological details). 48-49) Aedeagus (dorsal and lateral view). 50) Right labial palp (dorsal view). Gonaphodiellus pacatus (Harold, 1880) (Tolima, Rovira, Colombia). 51) Labial palp. 52) Epipharynx. 53-54) Habitus (morphological details and length ideogram). 55-56) Aedeagus (dorsal and lateral view).

Figure 67-77. Gonaphodioides acutecernans (Balthasar, 1960) (Cochabamba Prov., Bolivia). 67) Epipharynx. 68, 70) Habitus (length ideogram and morphological details). 69) Right labial palp (dorsal view). 71-72) Aedeagus (dorsal and lateral view). Gonaphodioides chapini (Hinton, 1934) (2 Km N Sta. Clara, W Hartmann’s Finca, Chiriqui Prov., Panama). 73) Epipharynx. 74-75) Habitus (morphological details and length ideogram). 76-77) Aedeagus (dorsal and lateral view).

Figure 109-119. Gonaphodiopsis hypogea, new species (Salamander Cave, Rancho del Cielo, Gomes Farias, Tamaulipas, Mexico). 109) Epipharynx. 110-111) Habitus (length ideogram and morphological details). 112- 113) Aedeagus (dorsal and lateral view). Gonaphodiopsis montesdeocai, new species (Xuatusco env., Parada de los Pinos, Veracruz, Mexico). 114) Epipharynx. 115-116) Habitus (morphological details and length ideogram). 117) Right labial palp (dorsal view). 118-119) Aedeagus (dorsal and lateral view).