24 EK0TYLIDJ2. 



simis; elytris creberrime punctatis, substriatis, apicibus lsevibus, rotundatis et minute denticulatis; 

 prosterno apice exciso, maris asperulo et sub-bimucronato. Long. 6-10 millim. c? ? • 

 Mas prothorace convexiore ; pedibus anticis et intermediis longis, femoribus intus asperatis, tarsis hirtulis. 



Edb. Mexico, Orizaba \ Toxpain, Cordova (Salle). 



The Langurites ventralis of Crotch's ' Revision ' is not this species, but merely a 

 unicolorous specimen of L. lineata. Chevrolat's type is, however, contained in the 

 Cambridge collection, and agrees with several specimens similarly named in Salle's 

 collection. It is a small species of a bluish-green iridescent hue, often inclining to 

 pitchy. The prosternum is distinctly roughened on the sides, with small tubercles 

 similar to those on the femora of the males ; its apex is excised, but not deeply, and 

 the angles are prominent, and in I), ventralis (and probably in other species) this 

 appears to be especially the case in well-developed males. The elytra at the shoulders 

 are distinctly wider than the base of the thorax. 



21. Dasydactylus (?) concinnus. (Tab. 1. fig. 12.) 



Nigro-aeneus, subviridis, pernitidus, angustus, corpore subtus pedibusque nigro-piceis ; capite crebrius, pro- 

 tborace parce minute, punctatis; elytris sat fortiter punctato-striatis, interstitiis punctulatis, apicibus 

 aeuminato-rotundatis et minute denticulatis ; prosterno exciso. Long. 8^-9 millim. 



Bab. Panama, Volcan de Chiriqui (Champion). 



Antennae fuscous ; the club rather elongate, though the separate joints are quite 

 twice as wide as long (yet they are not so wide as in many species of this genus) ; the 

 third to the sixth joints short, not much wider than long. The supraorbital striola is 

 very short. The thorax is oblong, narrowed in front, widest at the base, the basal 

 margin depressed in the middle and crenulate, the basal strigae hardly distinct. The 

 elytra are a little wider than the thorax at their base, tapering very evenly to their 

 extremity. B. concinnus has very much the appearance of a species of Trapezidera, as 

 represented by T. cenea ; and as the three specimens (which are all I have found among 

 a large number of ' Languriides ' from the Volcan de Chiriqui) appear to be all females 

 it is of course not unlikely that the species will have to be removed from this genus. 

 It is apparently not a Teretilanguria ; and the prosternum being excised it is better 

 placed here than in any genus at present characterized. B. concinnus is an extremely 

 neat and narrow insect. 



NOMOTUS. 



Pedes antici haud longi; femora valida, parum clavata; tarsi modice lati, subtus albo-hirtuli, haud longe 

 ciliati. Antennarum clava quadri-articulata, articulo septimo intus perparum acuminato. Prothorax; 

 oblongo-quadratus, utroque sexu convexus. Elytrorum apicibus rotundatis, perobsolete denticulatis, 

 angulo suturali denticulo minuto. Prosternum excisum, utrinque foveolatum, apice sub-bimucronato. 



The species forming this genus are practically Langurice which have the apex of the 

 elytra minutely denticulate. But as the genus Languria has not yet been accurately 

 defined, it will be better here to compare the typical species, Nomotus plutonus, with 



