Blackburneus xanthus (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 : 33-34

Blackburneus xanthus (Bates, 1887)

( Fig. 150-154 )

Aphodius xanthus Bates, 1887: 90 ; Blackwelder 1944: 212.

Aphodius (Blackburneus) xanthus ; Schmidt 1913: 138; Dellacasa 1988: 216.

Blackburneus xanthus ; Dellacasa et al. 2002: 206; Skelley et al. 2007: 2.

Typelocality. Bugaba, Panama.

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

Redescription. Length 3.0- 3.5 mm; oblong, convex, shiny, glabrous. Testaceous, elytralsuture darkened; legs testaceous; antennal club pale testaceous. Head with epistome convex, superficially microreticulate, finely and somewhat irregularly punctured; clypeus feebly sinuate at middle, obtusely round at sides, very thinly bordered, edge glabrous, slightly upturned anteriorly; genae round, shortly and sparsely ciliate, not protruding from the eyes; frontal suture distinctly impressed; front irregularly and sparsely punctured. Pronotum transverse, convex, dually and sparsely punctured, nearly parallelsided; lateral margins feebly arcuate, very thinly bordered, edge glabrous; hind angles obtusely round; base feebly bisinuate. Scutellum triangularly elongate, faintly microreticulate, sparsely punctured. Elytra oval-elongate; finely striate; striae distinctly punctured, subcrenulate; interstriae flat, laterally superficially microreticulate, smooth at middle, very finely and sparsely punctured. Hind tibiae superior apical spur slightly shorter than first tarsal segment; latter nearly as long as following three segments combined. Male: metasternal plate distinctly grooved; aedeagus Fig. 152-153 . Female: metasternal plate nearly flat.

Material examined. COSTA RICA: Prov. Puntarenas, Palmar Sur , United Fruit Co., 5.VIII.1964, leg. R. E. Woodruff (black light trap) (2 exx., FSCA) ; HONDURAS: Tegucigalpa , 1-12.XII.1917, leg. J. Dyer (1 ex., USNM) ; PANAMA: Chiriqui: Chiriquicito , 16.V.1996, leg. R. Turnbow (mv+bl) (2 exx., FSCA; 7 exx., RHTC) ; Chiriqui, Dolega , 25.VI.1964, leg. A. Broce (2 exx., DCGI) ; Chiriqui, Dolequita , 25.VII.1964, leg. A. Broce (4 exx., DCGI) ; Chiriqui: Elvira Farm , 15.VII.1964, leg. A. Broce (1 ex., DCGI) ; Prov. Chiriqui, Rovira , 2200 ft., 4.VII.1964, leg. A. B. Broce (3 exx., DCGI; 9 exx., FSCA) ; idem, 7.VII.1964 (1 ex., FSCA) ; idem, 9.VII.1964 (1 ex., FSCA) ; idem, 19.VII.1964 (1 ex., FSCA) ; 0.3 Km W El Llano , 12.V.1996, leg. R. Turnbow (1 ex., RHTC) ; La Chorrera , 14.V.1912, leg. A. Busek (1 ex., USNM) ; Panamá Prov., Cerro Campana , 11-15.V.1980, leg. E. G. Riley & D. LeDoux (2 exx., FSCA) ; Puerto Armuelles , 12- 19.VII.1982, leg. A. Castillo (Malaise trap) (1 ex. DCGI; 3 exx., FSCA) .

Figures

Figures 150-159. Blackburneus xanthus (Bates, 1887) (Volcan de Chiriquí, Panama). 150-151) Habitus (morphological details and length ideogram). 152-153) Aedeagus (dorsal and lateral view). 154) Epipharynx. Blackburneus surinamensis, new species (Ston Eiland Eco Resort near Brownsberg, Brokopondo Dist., 04o59’0”N– 55o08’0”W; Suriname). 155) Epipharynx. 156-157) Habitus (morphological details and length ideogram). 158- 159) Aedeagus (dorsal and lateral view).