310 BULLETIN 18 2, UNITED STATES NATIONAL MUSEUM 



Remarks. — One male specimen from Florida was sent to the Na- 

 tional Museum as a "cotype" of canoaensis (U.S.N.M. No. 52726). 

 It seems to agree with the description in most points but cannot 

 possibly be any kind of primary type because the original descrip- 

 tion specifically states that only a single specimen was known. I 

 have not been able to identify this specimen (or species) with any 

 of the described North American species. 



The above description was drawn from the Florida specimen. 



The type was found in a crevice in mud. 



3. LATHROBIUM DOMINICANUM, new species 



Descriptioji. — Piceous, often rufescent at borders of sclerites. 

 Head with hind angles broadly rounded; with moderate punctures 

 sparse on the disk and seldom separated by less than their diameter 

 laterally; without ground sculpture; gular sutures well separated^ 

 divereinjr from near the front. Pronotum with median smooth area 

 outlined by two regular series of about fourteen punctures, the series 

 sometimes interrupted near base by duplication of punctures; lat- 

 erally with an arcuate series and a few scattered punctures; without 

 ground sculpture. Elytra very short, appressed ; with indistinct and 

 irregular submuricate punctures not regularly serial; ^vithout dis- 

 tinct ground sculpture. Hind farms with first segment scarcely 

 longer than second, Male., seventh sternite unmodified; eighth with 

 a small triangular emargination, twice as wide as deep, with the 

 angles rounded and apex acute. Female., unknown. Length, 6 mm. 



Type locality. — Dominican Republic, Loma de la Pen a. northwest 

 of Constanza. 



Types. — Holotype, male, Museum of Comparative Zoology, and 

 paratype, male. United States National Mnseum (No, 52497); col- 

 lected in August 1938 by Dr. P. J. Darlington at elevation of 5,000 

 feet. 



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



Hispaniola: Dominican Repxiblic, Loma de la IVfia (I>arlington. in M.C.Z. and 

 U.S.N.M.). 



Specimens examined. — I have seen only the two types. 



Remarks. — This is one of the subterranean type of paederid so 

 distinct as a group and among themselves as species. It is readily 

 distinguishable by the characters given in the key. 



It belongs in the subgenus Apte?'aJfwn, althougli differing con- 

 siderably in facies from the type species. 



I have received no records of its habits except that it was taken 

 at about 5,000 feet elevation, probably in ground cover. 



