Dallasiellus (Dallasiellus) lugubris (Stål), Stal

Avendaño, José Mauricio, Grazia, Jocelia & Schwertner, Cristiano Feldens, 2017, Cydninae (Hemiptera, Heteroptera, Cydnidae) in Brazil: updated checklist, new records, and description of Tominotus ondulatus sp. nov., Zootaxa 4329 (5), pp. 401-435 : 412

Dallasiellus (Dallasiellus) lugubris (Stål)

( Figs. 5 , 6B )

Aethus lugubris Stål, 1860: 13 .

Geotomus obscurus Signoret, 1883: 39 , syn. by Froeschner, 1960. Geotomus nigrocinctus Signoret, 1883: 40 , syn. by Froeschner, 1960. Geotomus semilevis Signoret, 1883: 44 , syn. by Froeschner, 1960. Geotomus pangaeoides Signoret, 1883: 45 , syn. by Froeschner, 1960. Geocnethus reversus Barber and Bruner, 1932: 237, syn. by Froeschner, 1960. Dallasiellus (Dallasiellus) lugubris: Froeschner, 1960: 613 .

Material examined: 2 specimens, PA, Prainha , 06-Jan-1920, Mendes col., MNRJ ; 1♂ 1♀, MT, Rosario Oeste , 01- Nov-1963, Alvarenga col., MNRJ ; 1 specimen, RO, Boa Vista, Alvarenga col., MNRJ ; 3 specimens, MG, Carmo do Rio Claro, Sep-1947, Carvalho col., MNRJ ; 2 specimens, ES, Linhares, Parque Sooretama , 17-Oct-1958, Sajciw col., MNRJ ; 1♀, RJ, Flamengo, "D. Federal", 15-Apr-1955, A. Silva col., MCNZ ; 1♀, Flamengo, "D. Federal", 12-Feb-1957, C. Seabra col., MCNZ ; 1 specimen, Itatiaia, Nov-1950, Travassos col., MNRJ ; 3 specimens, Rio de Janeiro, Corcovado, 01-Oct-1947, Alvarenga col., MNRJ ; 1 specimen, Rio de Janeiro, Floresta da Tijuca, 1950, Alvarenga col., MNRJ ; 1♀, SP, Ibitinga, Seringueira , 29-Nov-1989, AM de Faria col., UNIFESP ; 1♂ 2♀, Ibitinga, Seringueira , 13-Dec-1989, AM de Faria col., UNIFESP ; 28♂ 20♀, Mogi-Mirim, ca. 9 km W, 02- Feb-2009, MCNZ ; 1♂, São Sebastião, Praia de Juquehy , 01-Feb-1992, F. Silveira col., UFRG ; 1♀, RS, Derrubadas, Campus UnB , 25-Nov-1965, MCNZ ; 1♀, Viamão , 13-Apr-1983, C.J. Becker col., MCNZ .

Distribution: EUA, Mexico, Puerto Rico, Guatemala, Nicaragua, Costa Rica, Panama, Ecuador, Brazil (PA, MT, RO new rec., MG new rec., ES new rec., RJ, SP, RS new rec.), Bolivia, Argentina.

Remarks: Among the species of the subgenus of small size (less than 6 mm), despite the great variation on its external features and the wide geographic range, the two or more secondary submarginal close-set setigerous punctures in front of eye seems to be useful to identify D. lugubris . First record for SP in Brazil in Grazia & Schwertner (2011) and for Ecuador in Froeschner (1981).

Figures

FIGURE 5. Distribution map of Dallasiellus: D. levipennis, D. leurus, D. longulus, D. lugubris and D. orchidiphilus in Brazil.

FIGURE 6. Dorsal view of the species of the genus Dallasiellus: D. longulus (A), D. lugubris (B) D. orchidiphilus (C), D. planicollis (D), D. solitaria (E), D. puncticeps (F), Scale bar: 1 mm.