120 HOMOTYPHTJS. 



prominent; within this depression the punctures are much more 

 distinctly apparent : surface impubescent, glabrous, brightly rufous. 

 Antennae robust, medially somewhat incrassated ; the first joint broad 

 and dilated ; second short, ovate ; third longer than the first and 

 narrow ; fourth to eighth gradually incrassated : the colour fuscous 

 black, the third joint and the ninth to eleventh being suffused with 

 piceous. Legs : the posterior tibiae are somewhat long, and produced 

 beyond the insertion of the tarsi ; the anterior piceous, the posterior 

 rufous. 



From Choco, Colombia. In the collection of Mr. Baly. 



I believe that these two species, H. turgidus and H. nitidus, al- 

 though generally allied to each other, will hereafter form two distinct 

 genera. In H. nitidus, inter alia, the head is more produced, the 

 thorax is anteriorly rounded, and the antennae have a more decided 

 tendency to dilatation ; in the absence of other species, however, I do 

 not venture to separate them. 



Genus 17. HOMOTYPHUS*. 



PALPI MAXILLARES cylindrici, art. 2 nd0 et 3 ho subcequalibus, apicali 

 attenuate. 



PALPI LABIALES elongati, art. penultimo subdilatato. 



ANTENNJE approximate, ad apicem subincrassatce, art. 3", 4 to et 5 to 

 cequalibus et attenuatis, 6*-10 TOO brevibus, robustis, art. ultimo 

 plerumque attenuate. 



CAPUT vertieale, haud productum. 



THORAX transversus, rarissime cequatus, subpubescens, et aut punctatus 

 aut granulatus. 



ELYTRA lata, plerumque leviter tuberculata, plus minus ante medium 



transverse depressa, punctate -striata, pube vestita. 

 PEDES robusti, tibiis posticis inarmatis. 



Labrum transversely subrotundate. 



Maocillary palpi (Front, fig. 6 m) robust, cylindrical ; the basal 

 joint minute ; the second and third of equal length, not incrassated 

 at the apex (the second being somewhat narrower than the third) : 

 the apical joint is much more attenuated than the rest, being at its 

 base considerably narrower than the apex of the third joint ; its length 

 is nearly double its breadth. 



Labial palpi (Front, fig. 6 n) elongate ; the penultimate joint 

 slightly broader than the apical. 



Antennce approximate, situated between the lower margins of the 



s, humerus ; Tv^o^ai, turgesco. 



