TWO NEW IMOEDELLID BEETLES RAY 241 



Antennae 0.4 mm long, reaching posterior coxae ; segments 1 and 2 

 equal; 4 distinctly longer than 3; 5-10 each one-half longer than 4, 

 subfiliform. slender; 11 longer than 10, rounded, attenuate to apex. 

 Apical segment of maxillarj' palpus enlarged, club-shaped, broadest 

 subapically. niesal margin strongly curved, lateral margin straight, 

 apex abruptly rounded. Prothorax broader than long, sides rounded, 

 basal angles right angles, base arcuate, midbasal lobe short, rounded. 

 p]lyti'a more than two and one-half times as long as broad, sides sub- 

 paralle], a})ical third strongly curved, apices individually rounded. 

 Posterior tibiae with two equal, oblique ridges extending halfway 

 across outer face ; posterior basitarsus with two, second segment with 

 one oblique ridge. Anal style two and one-half times as long as 

 apical ventral segment, slender, evenly attenuate to apex. 



Type locnVdy. — Venezuela. 



ry/>e.— Male, U.S.N.M. no. 51951. 



Remarks. — Two specimens, both males, are at hand. The type 

 emerged from a leaf of Cattleya sp. from Venezuela, on May 15, 

 198G, at Washington, D. C, in quarantine. The paratype was taken 

 as a leaf miner in CaiUoga sp. from Brazil and emerged on August 

 11, 1936. The latter specimen bears the provisional determination 

 label of MordelUstena cattleyana (?) Champion but is undoubtedly 

 identical with the type of chapini. This species is named for Dr. 

 Edward A. Chapin, of the Smithsonian Institution. 



U. S. GOVERNMENT PRINTING OFFICE: 1537 



