522 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



separated by rather unsatisfactory characters as mentioned under 

 that species. 



My specimens were taken from rotting citrus fruit, from decaying 

 cocoa pods, in freshly cut chips of coconut husks, under chips on 

 fresh stumps, from fungus, from manure, in decomposing trash in 

 sugarcane fields, among decomposing forest debris, and flying at dusk. 



10. COPROPORUS RUTILUS (Erichson) 



Tachinns rtitilus Erichson, 1839b, p. 2^)3. — Sharp, 1883, p. 304. — Blackweujee, 



1938, pp. 2, 4. 

 Tachinus terminalis Erichson, 1839b, p. 250. — Lacordaire, 1854, p. 55. — Chev'ko- 



LAT and Fauvel, 1863, p. 430.— DuVal, 1857, p. 32. 

 Tachijporns hrevis Scriba, 1855, p. 296. — Blackwelder, 1938, pp. 4, 5. 

 Coproporus hrevis (Scriba) Bernhaueb and Schubeet, 1916, p. 492. (Not 



Sharp, 1876.) 

 Coproporus tcntiinaUs (Erichson) Chevrolat and Fauval, 1863, p. 429. — Leng 



and MUTCHLEE, 1914, p. 407. — Bernhaueb and Schubert, 1916, p. 493. — 



WoLCOTT, 1924, p. 79 ; 1936, p. 198. 

 Erchomus 7-utilus (Erichson) Sharp, 1883, p. 304.— Wolcott, 1936, p. 198.— 



Blackwelder, 1938, p. 4. 

 Cilea rutiliis (Erichson) Leng and Mutchler, 1914, p. 406. — Wolcott, 1924, 



p. 79; 1936, p. 198.— Bi^ckwelder, 1938, p. 4. 

 Coproporus rtitilus (Erichson) Bernhaxjer and Schubebt, 1910, p. 492. — 



Bernhaueb, 1918, p. 91. — Scheerpeltz, 1933, p. 1518. — Bernhaueb, 1934, 



p. 218.— WoLCOTT, 1936, p. 198.— Blackwelder, 1938, pp. 2, 8, 4. 

 Coproporus ohscurior Bernhaueb, 1918, p. 92 (as aberration). — Scheebpeltz, 



1934, p. 1518. 

 Coproporus piceorufus Bebnhaueb, 1918, p. 92 (as aberration). — Scheebpeltz, 



1934, p. 1518. 



Description. — Clear rufous to rufopiceous. Head minutely punc- 

 tulate but not otherwise punctate or sculptured. Pronotum not dis- 

 tinctly punctured or sculptured, but sometimes with one or two rather 

 large punctiform depressions at the sides of the disk. Elytra with a 

 large and distinct depression at the sides but slightly separated from 

 the margin ; rather finely but very distinctly punctured, the intervals 

 smooth and shining. Ahdomen punctured similarly to the elytra 

 but a little more finely and with irregular strigulae among the 

 punctures. Male^ eighth sternite with a large abrupt triangular 

 emargination about one-third wider than deep; eighth tergite 

 quadridentate, the median teeth longer and more acute, the median 

 notch rather broad. Female, eighth tergite divided into four pro- 

 cesses, the two middle more slender and a little longer than the 

 outer. Length, II/2 to 2 mm. 



Type locality. — "Americae ins. Puerto Rico et St. Thomae, in Colum- 

 bia." of hrevis, Venezuela; of ohscurior, Panama; of piceoi^jus, 

 Argentina and Brazil ; of terminalis.^ Puerto Rico. 



