142 endomychim:. 



The small size, almost quadrate form, and colour render this insect easy to recognize, 

 there being so few of the section to which it belongs with short joints to the funiculus 

 of the antennae. The wide raised margin of the thorax and the sparse deep punctuation 

 of the elytra are characters unusual in New- World Stenotarsi. 



With the exception of the one from Guatemala, I have never seen any other example 

 of this species than the type, which is now in the possession of Mr. G. Lewis. 



The following two species, represented by single examples only, are apparently 

 distinct from any of the foregoing ; but they are not in a sufficiently good condition to 

 make it desirable to describe them, and, at the best, are very obscure and difficult 

 insects to deal with. 



24. Stenotarsus ? 



Hdb. Panama, Volcan de Chiriqui (Champion). 



A small species about the size of small S. adumbratus, but more oblong, and with the 

 terminal joint of the antennae red. 



25. Stenotarsus ? 



4 Hdb. Panama (Boucard). 



Another small species, with bead-shaped short joints to the base of the antennae ; 

 allied to S. maculicollis, but smaller^ and with unicolorous dark brown elytra. 



RHYMBUS. 



Rhymbus, Gerstacker, Monogr. Endom. p. 347 (1858) ; Gorham, Endom. Recit. p. 27. 

 Bystus, Guerin, in Thomson's Archives Ent. i. p. 270. 



Bhymbus is a genus which approaches the Coccinellidae in its hemispherical form, 

 but is properly associated with the present family. The tarsi are more filiform than 

 in the genera we have hitherto been treating of, but do not differ essentially from the 

 Endomychidous type, i. e. they are four-jointed, with the first two joints produced 

 beneath, and the apparent long claw-joint with a suture near the base. The antennae 

 have nine or ten joints ; their structure is very like that of Panomcea, an eastern genus 

 in which the joints are also sometimes reduced in number. About ten species of 

 Bhymbus are known to me, all from the New World. 



Section A. Antennae nine-jointed. 

 1. Bhymbus limbatus. (Tab. VIII. fig. 12.) 



Rhymbus limbatus, Gorh. Endom. Recit., App. p. 63 \ 



Rotundatus, fere, hemisphaericus, nigro-piceus, nitidus, breviter fulvo-pubescens ; capite, antennarum basi, 



