172 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



XXIV. Genus MIMOGONUS Fauvel 



Mimoffonus Fatjvex, 1903, p. 2G1. 



Genotype. — Osorius fumator ¥iiuyel= Mimogoniis fumator (Fauvel) 

 (designated here). 



Diagnosis. — Body subcylindrical, pubescent; without ocelli; anten- 

 nae not geniculate ; labrum transverse ; fourth segment of maxillary 

 palpus strongly conical, twice as long as third; mentum flat, hemi- 

 octagonal; submentum transverse; gular sutures united; prosternum 

 prolonged beneath the anterior coxae in a very narrow process; 

 anterior coxal cavities narrowly open behind; anterior coxae large 

 and prominent, with a transverse groove on the anterior face ; middle 

 coxal cavities narrowly separated by union of meso- and metasternal 

 processes; metasternum punctate; posterior coxae contiguous, not 

 expanded under the femora; abdomen not margined; first and 

 second sternites absent, third carinate; in male, seventh and eighth 

 sternites with median concavity, ninth obtriangular; in female, eighth 

 sternite lobed, ninth segment apparently with a narrow sternite; 

 tibiae not dilated, spinose but not dentate; tarsi 5-segmented, last 

 segment tumid. 



Remarks. — Pauvel erected this genus for eight species of Osoriini 

 of which only three had been described. It is very similar to Osorius 

 but is distinguished by its antennae being not geniculate and having 

 the basal segment short, by the scarcely enlarged tibiae with spines 

 but not dentate, and by the emarginate posterior corners of the 

 pronotum. 



Only one species is known from the West Indies. 



1. MIMOGONUS FUMATOR (Fanyel) 



Oioritis fumator Fatjvel, 1889, p. 246. — Cameron, 1930, p. 304. 



Mimoyonus fumator (Fauvel) Fauvel, 1903, p. 261. — Bernhaueb, 1910, p. 359. — 

 Beenhaueb and Schubkrt, 1911, p. 141.— Cameron, 1921, p. 368, 401; 1923, 

 p. 398; 192Sb, p. 108; 1930, p. 304; 1940, pp. 86, 87.— Notman, 1925, p. 3.— 



SCHEERPELTZ, 1933, p. 1129. 



Osorius fauveli Cameron. 1913b, p. 326. — Leng and Mutchler, 1917, p. 198. — 

 Cameron, 1923, p. 398 ; 1928, p. 108 ; 1930, p. 304.— Notman, 1925, p. 3. 



Mimogonus fauveli (Cameron) Cameron, 1913, p. 326; 1923, p. 398. — Notman, 

 1925, p. 3.— Cameron, 1928, p. 108.— Scheerpeltz, 1933, p. 1129. 



Mimogonus fumatior Cameron, 1921, p. 401 (misspelling). 



Descriptimi. — Rufopiceous to rufo testaceous, abdomen black. Head 

 about three-fourths as wide as pronotum ; eyes moderately prominent; 

 clypeus short, truncate, angles not prominent; labrum short, scarcely 

 emarginate, vaguely alutaceous; outer antennal segments wider than 

 long; with rather large dense setigerous punctures, and traces of 

 alutaceous ground scul pture. Pronotwm about three-tenths wider than 



