Cryptocanthon campbellorum Howden, 1973

Cook, Joyce, 2002, A Revision Of The Neotropical Genus Cryptocanthon Balthasar (Coleoptera: Scarabaeidae: Scarabaeinae), The Coleopterists Bulletin (mo 1) 56, pp. 3-96 : 17-19

4. Cryptocanthon campbellorum Howden

( Figs. 26–30 )

Cryptocanthon campbellorum Howden 1973:44

Material Examined. Twenty-eight specimens (21 males, 7 females).

Type Material Examined. Holotype: ‘‘ BRAZIL, 30 km / SW Brasilia, DF / III-6- 1970, 1,000 m / JM & BA Campbell ’’ ( CNCI) male.

Non-type Material Examined. ‘‘ BRAZIL, Para´, Altamira , V.1985, N. Degallier, FIT’’ ( CMNC) 2 males, 1 female ; ‘‘Brasil, E. Para, Tucurui, Ene. [1]979, Alvarengo leg., Coll. Martínez ’’ ( CNMC) 2 females ; ‘‘ COLOMBIA: Vaupes, Caparúi 100 m 29/ XI/95 30 g, Colinas A. Lopera BHT’’ ( AFIC) 1 male ; same data except ‘‘30.XI.95 1 g ’’ ( AFIC) 1 male ; ‘‘Colombia, Meta, Piñalito, El Esfuerzo, 200 m, Bosque de galeria, Mar – Abr /97, A. Lopera, S. Amezquita ’’ ( AFIC) 1 female ; ‘‘ PERU: Madre de Dios: Rio Patuyacu, Oculto camp, 128399000S, 688559330W, Pitfall human dung by mammal hole, 400 m, T. Larsen IV-15-17, 1999 ’’ ( CMNC) 1 male ; Madre de Dios: Rio Patuyacu , La Viuda camp, 128479430S, 688589030W, flt. intercept trap 2, 240 m, T. Larsen IX-15-16, 1999 ’’ ( AFIC) 2 males ; same data except ‘‘pitf. crush millipede’’ ( AFIC) 2 males ; same locality except ‘‘128529S, 688559330W?, Pitfall human dung, 400 m, II-27/ 28, 1999’’ ( AFIC) 2 males ; ‘‘ Madre de Dios: Rio Palma Real Grande, Limón camp 128329200S, 688519410W, Pitfall human dung, 400 m, T. Larsen, III-31/ IV-1, 1999 ’’ ( AFIC) 2 males, ( CMNC) 1 female; same data except ‘‘IV-4/5, 1999’’ ( AFIC) 1 male, 1 female ; same data except ‘‘128329200S, 688519400W/ 220 m X-1999 ’’ ( AFIC) 1 male ;

‘‘ Madre de Dios: Rio Tambopata, Jorge Chavez , 128389590S, 698069240W, Pitf. human dung, 230 m, T. Larsen, IX-26-27, 1999 ’’ ( AFIC) 1 male ; same data except ‘‘ IX-25-26, 1999 ’’ ( AFIC) 1 male ; same data except ‘‘ Pitf. grasshopper, forest edge by small old pasture, XI-27/28, 1999’’ ( AFIC) 1 male ; same data except ‘‘flt. intercept trap 2, XI-29-30, 1999 ’’ ( AFIC) 1 male ; ‘‘ Madre de Dios, Rio Madre de Dios, Rio Los Amigos base camp, 18 terra firme, 290 m, old dung pitfall, maybe some dung & dead insect smell, T11, 12834910.00S, 70806901.40 W, T. Larsen IV-2000 ’’ ( AFIC) 1 female ; ‘‘ Madre de Dios, Pantiacolo Lodge , 23–26.X.00, 400 m, R. Brooks, FIT’’ ( HAHC) 1 male .

Diagnosis. This species is distinguished by the following combination of characters: vertical surface of clypeus entirely, deeply foveate; pronotal hypomeron not carinate; inflexed portion of elytron with basal fovea; metathoracic wings well developed; pygidium strongly convex with median longitudinal carina; paramere apices rounded ( Fig. 29 ).

Description. Male. Total length 3.4–4.2 mm; greatest width 2.0– 2.6 mm. Head. Clypeus not strongly produced anteriorly ( Fig. 27 ). Clypeal teeth well developed, widely separated, moderately reflexed. Clypeal emargination between teeth evenly rounded; vertical surface broadly V-shaped, entirely deeply excavated. Apical margin of clypeus lateral to teeth nearly straight. Disc of clypeus nearly flat, with mediumsized, shallow, annulate punctures separated by one diameter or less; punctures smaller anteriorly. Clypeogenal suture vaguely indicated by raised area. Gena not produced anteriorly. Vertex and gena with dense, medium-sized, shallow, annulate punctures.

Pronotum. Convex, explanate anterolaterally. Anterior angles approximately rightangled. Sides anterior and posterior to lateral angles nearly straight. Posterior angles obtuse, not incised. Pronotum evenly, densely punctate; punctures medium-sized, shallow, annulate; setae pale, recumbent, inconspicuous. Pronotal hypomeron convex, shallowly punctate, not carinate posteriorly. Elytra. Transversely and longitudinally moderately convex; lateral carinae not strongly elevated. Each elytron dorsally with seven striae, each stria indicated by two feeble wavy lines. Elytral intervals flat; each interval with row of closely spaced, small, shallow, setose punctures on each side adjacent to striae; setae pale, curved. Inflexed portion of elytron broad, evenly narrowed apically, punctate in basal third; basal fovea present; stria eight absent, stria nine present except at base, stria ten complete adjacent to epipleuron. Epipleuron densely punctate in basal third. Wings. Metathoracic wings fully developed. Venter. Prosternum with medium-sized, shallow punctures. Mesosternum with large, shallow, annulate punctures. Meso-metasternal suture rounded medially. Metasternum flat medially, with minute punctures anteriorly; posteriorly, punctures larger, shallow, annulate; laterally, punctures large, shallow, annulate. Legs. Profemur densely punctate ventrally. Protibia not widened medially before apex; strongly expanded medially at apex ( Fig. 26 ). Mesofemur and metafemur finely punctate ventrally. Metatrochanter unmodified. Metatibia evenly curved, not crenulate; with small subapical lobe.

Abdomen. Apical sternite densely, shallowly punctate. Pygidium strongly convex with median longitudinal carina; base with short, broad sulcus. Male genitalia. Parameres ( Figs. 28–29 ) with apices rounded, not setose.

Variation. Female. Total length 3.5–3.9 mm; greatest width 2.0– 2.3 mm. Clypeal teeth more strongly developed. Protibia unmodified.

Bionomics. This species has been taken by litter sifting ( Howden 1973), in flight intercept traps, and in traps baited with human dung, millipedes, and grasshoppers. It has been taken during the months of January–May and November at elevations between 100 and 1,000 m.

Geographic Distribution ( Fig. 30). This species is of widespread occurrence in lowland tropical South America.

28) aedeagus, lateral; 29) parameres, dorsal. Scale line 5 0.5 mm.

Figures

Figs. 26–29. Cryptocanthon campbellorum. 26) left protibia, male; 27) clypeal outline;