176 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



24. Elytra with scattered coarse punctures 18. latipes 



Elytra with only three discal series of indefinite coarse punctures. 19. minor 



25. Pronotum with traces of ground sculpture on disk 26 



Pronotum without trace of ground sculpture on disk 30 



26. Clypeus strongly emarginate 32 



Olypeus not or scarcely emarginate 27 



27. Clypeus truncate or feebly emarginate 28 



Clypeus strongly produced and rounded 29 



28. Alutaceous ground sculpture of head obsolescent throughout 27. eggersi 



Ground sculpture of head becoming very strong in front 28. lewisi 



29. Clypeus angulate in front 32. exalatus 



Clypeus rounded in front 33. micropterus 



30. Pilytra distinctly and evenly punctate 2.1. laeviceps 



Elytra irregularly and indistinctly punctate 31 



31. Punctures of pronotum elongate, impressed, sparse 26. jamaicensis 



Punctures of pronotum round, shallow, moderately dense 31. exiguus 



32. Sculpture of head distinct and definite, moi-e or less clearly longitudinal, 



especially at sides of disk 29. weberi 



Sculpture of head vague and indefinite, not clearly longitudinal even at 

 sides 30. triuitatis 



1. OSORIUS REGULUS Darlington 



Osorius regulus Darlington, 1937, pp. 286, 288. 



Description. — Castaneous to ruf otestaceous. Head about nine- 

 tenths as wide as pronotum; eyes small, not at all prominent; an- 

 terior margin of clypeus slightly rounded, irregularly crenate, an- 

 gles not very prominent; labrum distinctly emarginate, alutaceous 

 except on declivity; antennal segments not transverse; surface very 

 finely alutaceous and with tiny punctulae, also a few large punc- 

 tures on vertex. Pronotum strongly narrowed behind, one-fourth 

 wider than long, base three-fourths as wide as apex, sides rather 

 sinuate; side margins very strong near base; with narrow shining 

 midline; with fine punctures almost completely obscured by the 

 den.se alutaceous ground sculpture, and a very few larger setigerous 

 punctures. Elytra one-tenth narrower than pronotum, nearly one- 

 fifth wider than long, widened apically; humeral margins strongly 

 elevated; with a few setigerous punctures, coriaceous throughout. 

 Ahdomen feebly alutaceous except at apex, impunctate. Anterior 

 face of front tibia with numerous scattered setigerous punctures. 

 Length, 14 to 15 mm. 



Type locality. — Southwestern Haiti, Morne La Hotte, 7,000 feet 

 to summit (about 7,800 feet). 



ry/>c,9.— Holotype (M.C.Z. No. 20233) and four paratypes in the 

 Museum of Comparative Zoology; one paratype in the United States 

 National Museum (No. 51249). 



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

 Hispaniola: Haiti, Morne La Hotte (Darlington, 1937; U. S. N. M. ; A.M.N.H.). 



