Cryptocanthon genieri Cook, 2002

Cook, Joyce, 2002, A Revision Of The Neotropical Genus Cryptocanthon Balthasar (Coleoptera: Scarabaeidae: Scarabaeinae), The Coleopterists Bulletin (mo 1) 56, pp. 3-96 : 66-68

26. Cryptocanthon genieri Cook sp.nov.

( Figs. 140–144)

Material Examined. Thirteen specimens (9 males, 4 females).

Type Material. Holotype: ‘‘ ECUADOR: Napo, 1,200 m / Km 7.3 Sarayacu- Loreto Rd / 11.VII.1994, F. Génier / cloud forest, feces tp.’’ ( CMNC) male . Paratypes (12): ECUADOR: same data as holotype ( CMNC) 5 males, 3 females ; ‘‘ Napo, 400 m / Jatun Sacha Biol. Station / (21 km E. Puerto Napo) / 18.VII.1994, Levy & Génier / virgin rain forest, F.I.T.’’ ( CMNC) 1 male ; ‘‘ Napo / Jatun Sacha B.S. / 778369W, 18049S, 450 m / Feb 10–12, 1995 / M Bass & N Pitman (A. Forsyth)’’ ‘‘ Primary forest / Pitfall-human dung / Nocturnal / Tran 1: trap 5: 24 hrs.’’ ( BDGC) 1 male ; ‘‘ Pastaza, 1,000 m / 25 km N. Puyo, 13. / vii.76 S.&J. Peck / Ber 361 forest litter’’ ( CMNC) 1 female ; ‘‘ Past., 1,000 m / Llandia (17 km N. Puyo) / 19.VII.1994, F. Génier / remnant rain for., feces tp.’’ ( CMNC) 1 male .

Etymology. The epithet ‘‘genieri’’ is a patronym in recognition of the collecting of François Génier, Canadian Museum of Nature.

Diagnosis. This species is distinguished by the following combination of characters: vertical surface of clypeus not foveate; pronotal hypomeron carinate; inflexed portion of elytron lacking basal fovea; metathoracic wings fully formed; convexity of pygidium with median longitudinal swelling; paramere apices truncate, with a fringe of elongate setae ( Fig. 143).

Description. Holotype. Male. Total length 4.6 mm; greatest width 2.8 mm. Head. Clypeus not strongly produced anteriorly ( Fig. 141). Clypeal teeth moderately well developed, widely separated, moderately reflexed. Clypeal emargination evenly rounded; vertical surface broadly V-shaped, not foveate. Apical margin of clypeus lateral to teeth slightly convexly arcuate. Disc of clypeus concave, with medium-sized punctures separated by one diameter or less. Clypeogenal suture vaguely indicated by raised line. Gena very slightly produced, anterior margin slightly raised above level of anterior margin of clypeus. Vertex and gena densely punctate. Pronotum. Convex medially, laterally explanate, shallow depressions laterally in posterior half. Anterior angles approximately right-angled. Sides anterior to lateral angles slightly concavely arcuate; nearly straight posterior to lateral angles. Posterior angles obtuse, not incised. Pronotum densely punctate; punctures of disc elongate, curved; posterolaterally, punctures large, shallow, annulate; setae very fine, short, inconspicuous. Pronotal hypomeron convex, densely, shallowly punctate, with longitudinal carina posterolaterally. Elytra. Transversely and longitudinally moderately convex; lateral carinae not strongly elevated. Each elytron dorsally with seven striae, each stria indicated by two wavy lines. Elytral intervals slightly convex; each interval with minute setose

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punctures on each side adjacent to striae; setae short, curved, more conspicuous posteriorly and laterally. Inflexed portion of elytron moderately broad, evenly narrowed apically, lacking basal fovea, with scattered minute punctures; transverse wrinkles in posterior half; stria eight absent, nine present in posterior half, ten indicated by row of punctures adjacent to epipleuron. Epipleuron with row of small, shallow punctures along medial margin. Wings. Metathoracic wings well developed. Venter. Prosternum and mesosternum with shallow, annulate punctures. Meso-metasternal suture broadly angulate medially. Metasternum slightly convex medially with minute scattered punctures; posteriorly, punctures larger, shallow; laterally, punctures large, dense, annulate. Legs. Profemur densely punctate ventrally. Protibia ( Fig. 140) with apical half broadened medially; deeply notched medially before apex. Mesofemur and metafemur with small, elongate punctures ventrally. Metatrochanter unmodified. Metatibia very slightly angulate, not crenulate; with minute subapical lobe on inner side. Abdomen. Apical sternite shallowly, densely punctate. Pygidium moderately convex, moderately punctate; convexity with median longitudinal swelling; base with narrow sulcus. Male genitalia. Parameres ( Figs. 142–143) with apices truncate, with a fringe of elongate setae.

Variation. Male: total length 3.5–4.6 mm; greatest width 2.1–2.8 mm. Female: total length 3.9–4.5 mm; greatest width 2.4–2.7 mm; clypeal teeth more strongly developed; protibia unmodified.

Bionomics. This species has been taken in dung traps and flight intercept traps and by sifting litter in both primary rain forest and cloud forest. It has been collected during February and July, at elevations of 400–1,200 m.

Geographic Distribution ( Fig. 144). This species occurs on the eastern slope of the Andean Cordillera in the province of Napo, Ecuador.