Dallasiellus (Ecarinoceps) megalocephalus Froeschner

(Figs. 7, 8C)

Dallasiellus (Ecarinoceps) megalocephalus Froeschner, 1960: 592 .

Material examined: 1♀, AP, Porto Platón, 18-May-1983, J.I. Lacerda col., UFRG; 1♀, RO, Porto Velho, Rio Madeira, Dirings col., MCNZ; 1♀, RS, Frederico Westphalen, 17-Oct-2005, Massolino & Mansur col., UFRG. Distribution: Panama, British Guiana, Brazil (AP new rec., AM, MT, RO new rec., RS new rec.). Remarks: This species has a large head, broader than half the width of the pronotum (Fig. 8 C), characteristic unique among the subfamily.