314 BULLETIN 18 2, UNITED STATES NATIONAL MUSEUM 



Specimens examined. — ^I have seen 23 examples collected b}' Dr. 

 Darlington, of which 8 are now deposited in the United States Na- 

 tional Museum. 



Remarks. — The male genitalia leave little doubt of the identity 

 of this species, only odmm being at all similar. That species is dis- 

 tinguislied only by its single series of pvmctures bordering the prono- 

 tal median space, whereas in discolor the space is irregular and 

 marked by bands of punctures not in a single series. The two species 

 occur in the same part of Cuba, but I find no intergrades in either 

 series. They both belong in the subgenus Lohrathium s. str. 



I find no record of the habits of this species. 



2. LOBRATHIUM PECTORALE (Erichson) 



Lathrohinm peciorale Erichson, 1840, p. 596. — Bernhauer and Schubebt, 1912, 

 p. 2(55. — Lkng and Mutcht.eb, 1914, p. 405. 



De^scHption. — Nigropiceous, elytra rufous. Head more densely 

 punctate at sides, smooth in front, punctures notably sparse. Prano- 

 fum densely punctate at sides, median longitudinal space smooth. 

 Elytra more densely but less strongly punctate, subserially in front. 

 Male, seventh sternite bi-oadly feebly emarginate; eighth sternite 

 deeply triangularly excised. Female, unknown. Length, 6 mm. 

 (From Erichson.) 



Type I^ocaJify. — "Americae meridionalis ins. St. Thomae." 



Types. — Either in the Hope Museum, Oxford, or the Zoologische 

 Museum, Berlin. 



Records. — The following is the only record known to me : 



St. Thomas: (Erichson, 1840; Bernhauer and Schubert, 1912; T^ngand Mutchler, 

 1914). 



Specimens examiined. — I have seen no example of this species. 



Remarks. — ^The characters given above seem to be sufficient to dis- 

 tinguish this species from any known to me. Tlie male characters 

 distinguish it from odium. It is not possible to determine from the 

 original description to which subgenus it belongs. 



I find no record of its habits. 



3. LOBRATHIUM RUBIDUM (Fauvel) 



lAthocharin ruhida Fauvkt,, 1803. p. 48G. — Blackwei.dku, 1939a, p. 110. 



Lathrobium ruhidum (Fauvel) Vilt^da, 1901, p. 31. — Besnhauek and Schu- 

 bert, 1912, p. 266. — Leng and Mutchucr, 1914, p. 405. — Blackwelder. 1939a, 

 p. 110. (Not Casey, 1905) 



Lobrathiiim rubidum (Fauvel) Blackwelder, 1939a, p. 110. 



Description. — Rufous to rufotestaceoiis, abdomen generally darker, 

 elytra sometimes infuscate basally. Head with large and smaller 

 punctures separated by one to three times their diameter; without 

 ground sculpture; gular sutures rather widely separated, most ap- 



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