MONOGRAPH OF WEST INDIAN STAPPIYLINIDAE 301 



umbilicate punctures a little smaller than on head, more regular, 

 dense; without smooth areas; without ground sculpture. Elytra as 

 wide as long, as wide as head; conjointly emarginate behind; punc- 

 tures very coarse and deep, separated by convex intervals; without 

 ground sculpture. Ahdoinen finel}'^ and moderately densely sub- 

 muricately ])unctate. Male^ unknown. Female^ sternites not modi- 

 fied. Length, 414 mm. 



Type locality. — Trinidad, ward of Montserrat. 



Types. — Holotypo, female, U.S.N.M. No. 52411, collected on June 

 29, 1903, by August Busck. 



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



Trinidad: Montserrat (Busck, in United States National Museum). 



Spechiiens examined. — I have seen only the unique type. 



Remarks. — This species is sufficiently distinguished from tlie other 

 West Indian species, but I am unable to assert that it is positively 

 distinct from the South American ones. R. jugalis Erichson is the 

 only s}:)ecies recorded frc^n VenezAiela, but I have not seen examples 

 of it. 



I have no record of its habits. 



2. RUGILUS JUCUNDUS (Cameron) 



Stilicug jucundus Camekon, 1913b, p. 340. — Leno and Mutchleb, 1917, p. 198.— 

 ScHEEBPKLTz, 1933, p. 1242.— Blackwelueb, 1939a, p. 107. 



Description. — Piceous, slightly rufescent, apex of elytra narrowlj^ 

 testaceous, more widely at sides. Head scarcely wider than long, 

 rounded behind except for a slight prominence above neck, angles 

 entirely obliterated; eyes large, at less than their length from base; 

 labrum with two rather large denticles at middle, outer angles also 

 produced in small teeth; umbilicate punctures moderate, seldom 

 elongate, not very dense; without distinct smooth area on vertex; 

 without distinct ground sculpture. Pronotwm two-ninths longer than 

 wide, three-fourths as wide as head; widest at anterolateral angles; 

 sides very feebly emarginate in front, feebly arcuate posteriorly to 

 base ; with a distinct elevated smooth median band ; umbilicate punc- 

 tures a little smaller than on head, dense, without distinct smooth 

 areas; without ground sculpture. Elytra as wide as long, one- 

 twelfth wider than head; conjointly emarginate behind; punctures 

 coarse and deep, separated by broad convex intervals; without ground 

 sculpture. Abdomen very finely and densely submuricately punc- 

 tate. Male., seventh stemite not modified; eighth sternite with a 

 triangular excision dpe])er than wide, the angles narrowly rounded. 

 Female.) sternites unmodified. Length, 4 to 4^4 Tcvm. 



Type locality. — St. Vincent, Leeward side. 



Types. — In the British Museum. 



