MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 311 



4. LATHROBIUM SUBTERRANEUM, new species 



Description. — Piceorufous. Head with hind angles narrowly 

 I'oiinded; with moderately coarse punctures sparse on the disk and 

 often separated by less than their diameter laterally; without ground 

 sculpture ; gular sutures distinct Ij'^ separated in front, widely divergent 

 behind. Pronotimv witli median area outlined by two regular series 

 of about 18 very fine punctures; laterally with an arcuate series and 

 a few scattered punctures; without ground sculpture. Elytra very 

 short, appressed; with indistinct and irregular submuricate punctures 

 not serial; without distinct ground sculpture though the punctures 

 are somewhat obscured by the uneven surface. Hind tarsus with the 

 first segment distinctly longer than the second. Male^ unknown. 

 Female^ apical sternites not modified. Length, 6 mm. 



Type locality. — Puerto Rico, El Yunque, 3,000 feet elevation. 



Types. — Holotype, female, in the Museum of Comparative Zoology, 

 collected in May 1938 by Dr. P. J. Darlington. 



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



Puerto Rico: El Ynnqiie (Darlingtou, in M.C.Z.). 



Specimens examined. — I liave seen only the holotype. 



Remarks. — This is a very unusually slender species of the sub- 

 terranean type. It is very distinct by the characters given in the key 

 and belongs in the subgenus Apter'alimn^ where it is similar to 

 dominicanum but different from the type species, hrevipennis. It is 

 (he only specimen of this genus so far found in Puerto Rico. 



It was found at 3,000 feet elevation, probably luider ground cover. 



XLIII. Genus LOBRATHIUM Mulsant and Rey 



Lohrathhtm Mulsant and Rey, 1878, p. 78. 



BathroUum Gozis, 188G, p. 14. 



Lathrohiella Casey, 1905, pp. 75, 133. 



Latlirotaxis Casey, 1905. pp. 74, 122. 



Subgenus Platydomene Gangt.bauer, 1895, pp. 504, 507. 



Subgonus Eidathrohium Casey, lt!0.5, pp. 73, 115. 



LdlhrotropxH Casey, 1905, pp. 74, 115. 

 Subgenus P.sfudoluthra Casey, 1905, pp. 74, 129. 



Li7iolafhra Casey, 1905, pp. 75, 131. 



Microlathra Casey, 1905, pp. 75, 142. 



Pamlathra Casey, 1905, pp. 75, 130. 



Genotypes. — Lathrohiuin muUipunctuni Gravenhorst = Lohrathiv/m. 

 multipunctum (GraA^enhorst) (designated by Blackwelder, 1939). Of 

 Lathrohiello , Lailiroljiiini coll are J*]r]chson= Lathrohiella collaris 

 (Erichson) (designated by Blackwelder, 1939) ; of BathroUum^ 

 Staphylinus punctatu-s ¥ourcroy=Lathrobii(7}i puncfatum (Four- 

 CToy) = Bathrolimn pu7ictatum (Fourcroy) (implied by Gozis, 1886) ; 



