BRACHYGLUTINI 185 



Subgenus Paradrasinus new subgenus 



cisinsularis new species. Panama Canal Zone. 



hirsutus Fletcher. 1928. Vera Cruz, Vera Cruz, Mexico; Rio Azul, 

 British Honduras. 



ECTOPOCERUS (Raffray, 1904) 



This is a monotypic genus, known by the male sex only, limited to Chile, 

 and allied to Drasinus and Decarthron in having antennae of but ten segments. 

 The antennae are irregular: segment I ovate, large, as long as second and 

 third united ; II also large, but short, the segment being very transverse, evenly 

 convex in the lateral face and produced on the mesial face into an elongate, 

 subacute, apically flexed point, this mesial extension being half the width of 

 the segment; III to VIII transverse, with the third about one-half as wide 

 as the second segment and fourth to eighth progressively narrower, so that the 

 eighth is just barely transverse, small and inconspicuous; IX very peculiar, 

 very long but the articulation to the eighth segment is far forward, near the 

 fourth of the segment, and consequently two-thirds to three-fourths of the ninth 

 segment lies posteriorly, over the dorsal faces of the eighth, seventh, sixth, and 

 fifth segments; the lateral face of the ninth segment is elongate-semicircular 

 in outline, while the mesial face is bisinuate; X large and conspicuous in size, 

 being wider than the ninth, and as long as first to seventh segments united, 

 but simple in outline, elongate-oval, with both ends rounded. 



Maxillary palpi four-segmented, first, minute; second elongate, basally 

 slender and suddenly thicker apically; third, short, transversely subtriangular, 

 acute mesially, convex laterally; fourth, largest, almost fusiform, slightly, 

 obliquely truncate at base, very pointed apically, with a small palpal cone. 



Ventral face of head convex, with a median, longitudinal carina. 



Easily separated from Drasinus on the fourth segment of the maxillary 

 palpi, and separated from Decarthron by the lack of the median oval fossa 

 on the ventral surface of the head. This genus, then, is intermediate between 

 these two genera just mentioned. One species: 



verticicornis (Reitter). 1885. Chile. (Decarthron) . Genotype. 



DECARTHRON (Brendel, 1865) 



Brendel (1865) 



Brendel and Wickham (1890) 



ScHAUFUss (1879, 1882) (Bryaxis in part) 



LeContb and Horn (1883) 



Raffray (1904, 1908 a, b, 1909 a, b, 1911) 



Fletcher (1928 a, b) 



Bowman (1934) 



The genus Decarthron is limited to those species having the following 

 characters: (1) Ventral surface of the head with a median, oval fossa or fovea 

 of large size, the borders of which are well-defined or carinated; (2) Antennae 



