Blackburneuserythrinus (Bates, 1887)

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2011, Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2011 (204), pp. 1-52 : 22-23

Blackburneuserythrinus (Bates, 1887)

( Fig. 89-93 )

Aphodius erythrinus Bates, 1887: 89 ; Blackwelder 1944: 212.

Aphodius (Blackburneus) erythrinus ; Schmidt 1913: 138; Dellacasa 1988: 125.

Blackburneus erythrinus ; Dellacasa et al. 2002: 205; Skelley et al. 2007: 2.

Type locality. Volcan de Chiriqui, Panama.

Type repository. Natural History Museum, London (type examined).

Redescription. Length 3.0- 3.5 mm; shortly oval, strongly convex, rather dull, glabrous. Chestnutbrown; pronotum disc, scutellum and elytral suture darker; legs and antennal club chestnut-brown. Head with epistome nearly flat, densely microreticulate, finely andsparsely punctured; clypeus subsinuate at middle, obtusely round at sides, thinly bordered, edge glabrous and faintly upturned anteriorly; genae round, very shortly ciliate, not protruding from the eyes; frontal suture finely impressed; front strongly microreticulate, finely and sparsely punctured. Pronotum transverse, convex, microreticulate, rather coarsely and irregularly punctured; sides round, thinly bordered, edge glabrous; hind angles obtusely round; base feebly bisinuate. Scutellum elongate, microreticulate, with trace of lateral grooves, sparsely punctured. Elytra shortly oval, convex, distinctly striate; striae superficially punctured, not crenulate; interstriae moderately convex, strongly microreticulate, finely and sparsely but distinctly punctured. Hind tibiae superior apical spur as long as inferior one and shorter than firsttarsal segment; latter longer than following two segments combined. Male: pronotum somewhat more transverse; metasternal plate distinctly grooved; aedeagus Fig. 92-93 . Female: pronotum somewhat feebly narrowed frontward; metasternal plate nearly flat.

Material examined. COSTA RICA: Prov. Limón, Los Diamantes Exper. Station , 17.VII.1964, leg. R. E. Woodruff (in cow dung) (2 exx., CNCI; 4 exx. DCGI; 20 exx., FSCA) ; Puntarenas, Monteverde , 1200- 1700 m, 2-6.XII.1987, leg. Génier & Bertrand (sweeping) (1 ex., DCGI) ; PANAMA: Potrerillos , II.1934 (1 ex., USNM) .

Figures

Figures 84-93. Blackburneus diminutus (Bates, 1887) (Dueñas, Secatepéquez, Guatemala). 84) Epipharynx. 85- 86) Habitus (length ideogram and morphological details). 87-88) Aedeagus (dorsal and lateral view). Blackburneus erythrinus (Bates, 1887) (Bugaba, Panama). 89) Epipharynx. 90-91) Habitus (morphological details and length ideogram). 92-93) Aedeagus (dorsal and lateral view).