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74 



EHTNCHOPHOEA. 



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The numerous specimens identified as this species vary greatly in size 

 and to a certain extent in the intensity of the punctuation of the prothorax and 



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elytra ; but they are always smoother than Stenancylus colomboi, Casey (which appears 

 to be constantly ferruginous or rufo-piceous), and have the anterior coxae more 

 approximate. Both these insects have prominent eyes, the rostrum not 



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towards the base, and the elytra narrowly explanate and separately rounded at 

 apex. The Central- American examples of JR. elumbis, about half of which are from 

 Trece Aguas, are sometimes wholly or partly black : two of them (from El Reposo 





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(as described by Boheman 







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the elytra very little wider than the prothorax at the base ; two others (from Senahu 

 and Trece Aguas) want the subapical prothoracic constriction. The length 



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rostr.) varies from 2-2f mm. Wollaston's types of R. fusiformis (five from Brazil) 





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are larger than those obtained from within our limits. Boheman compares 





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M. elumbis with JRhizopkagus bipustulatus 



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2. Khyncolus chiriquensis, sp. n. (Tab. III. fig. 30, e .) 



Elongate, narrow, rather convex, subfusiform, shining, piceous. Head closely punctate, the globose t) 

 portion almost smooth, the eyes rounded, prominent, and coarsely facetted ; rostrum broad, short, 

 as long as the exposed portion of the head, distinctly widened above the points of insertion of the 

 antennae (appearing a little narrowed at the base). Prothorax considerably longer than broad, subovate, 

 strongly constricted near the apex, truncate and feebly margined at the base ; closely, finely punctate, 

 except along a narrow, incomplete, alutaceous median line. Scutellum very small, narrow. Elytra 

 moderately long, less than twice the length of, and about the same width as, the prothorax, produced, 

 separately rounded, and narrowly explanate at the apex; shallowly punctate-striate, the punctures 

 becoming very fine towards the sides and apex, the Interstices flat, finely alutaceous, and obsoletelj 





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uniseriate-punctate. Beneath somewhat closely punctate ; first ventral segment transversely depressed 



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at about the middle. Anterior coxae narrowly separated. Tibiae sharply mucronate at the inner apical 

 angle. Tarsi rather stout, the third joint feebly bilobed. 

 Length 3f , breadth £ millim. ( 6 .) 



Hub. Panama, Volcan de Chiriqui 3000 feet (Champion) 



One specimen. Larger, longer, and more convex than M. elumbis, with the smoother 

 globose portion of the head more distinctly separated from the anterior portion, 

 rostrum a little longer, the prothorax longer than broad, oblong-oval (not con 

 cylindric), and strongly constricted in front, the tarsi stouter. 



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3. 



Khyncolus montivagus, sp. n. 



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Elongate, subfusiform, piceous, shining. Head finely, rather sparsely punctate, the globose basal portion 

 almost smooth, the eyes prominent ; rostrum broad, very little longer than wide, slightly tumid above 

 the points of insertion of the antennae, finely punctate. Prothorax a little longer than broad, subovate, 



Mm. 



feebly constricted near the apex, closely punctate. Elytra considerably wider than the prothorax, 









moderatelv long, produced at the apex ; rather coarsely punetatc-sfcriate throughout, the interstices 



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convex, obsoletely uniseriate-punctate. 





Length 3|-3|, breadth ^- T % millim. 





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Ilab. Panama, Volcan de Chiriqni 8000 feet (Champion). 





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