BEACHYSPHENUS. 93 



figures will explain better than any description), and also by the yellow margin of the 

 thorax. The single example from David (fig. 8) is a distinct variety, in which the 

 pitchy-black disc of the thorax is divided into four spots. 



2. Brachysphenus pulcher. (Tab. V. fig. 9.) 



Ovalis, postice subacuminatus, dilute piceus, supra saturatius piceus vel nigro-piceus, nitidus; elytris striis 

 tribus vel quatuor dorsalibus tenuissimis, fasciis duabus valde denticulatis (anteriore ad scutellum et 

 ad humerum reflexa, denticulis duobus interioribus, tribus exterioribus; posteriore arcuata, dentieulis 

 tribus exterioribus, duobus iuterioribus, et ad suturam versus apicem reflexa), laete flavis. Long. 8-8^ 

 millim. 



Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 



More convex and more widely oval than B. delineatus ; the head and thorax pitchy- 

 black, the front of the former and the front angles of the latter paler, but never with 

 any defined yellow margin. The much indented yellow fasciae are somewhat similar to 

 those of B. delineatus ; they do not, however, as in that species, form two round black 

 spots at the base of the elytra, but one bifurcate spot. The posterior fascia is reflexed 

 at the suture towards the apex of the elytra, whereas in B. delineatus it is reflexed 

 towards their base. The underside in both species is plain pale pitchy-red. The 

 prosternum is rather more acutely compressed in front in B. delineatus. The legs in 

 both are pale pitchy-red. 



Mr. Champion captured many examples of this very beautiful insect. 



3. Brachysphenus catillifer. (Tab. V. figg. 10 ; 11, var.) 



Brachysphmnus zonula, Crotch, Cist. Ent. p. 147 l (pars). 



Oblongo-ovatus, parum convexus, flavo-ferrugineus, verticis puncto, prothoracis disco elytrisque piceis, his 

 fascia basali cum altera pone medium obliqua per vittam lateralem conjuncta ; antennis piceis, articulis 

 duobus basalibus runs. Long. 7g-9 millim. 



Hab. Nicaragua, Santo Domingo in Chontales (Janson \ Belt) ; Costa Eica, Cache 

 (Rogers). 



I have carefully compared this insect with Crotch's type-specimens of B. zonula in 

 his collection, and come to the conclusion that it is a distinct species from the Ecuador 

 insect. It differs as follows: — It is shorter and more robust; the ring-like band in 

 B. catillifer covers the shoulder, instead of leaving it of the pitchy-black ground- 

 colour ; and the posterior part of the hind fascia is more produced towards the apex of 

 the elytra. 



Janson's specimens have the basal fascia denticulate, but Belt's have the band nearly 

 or quite simple, as is also the case in one from Cache. 



4. Brachysphenus dilectus. 



Oblongo-ovatus, parum convexus, niger ; capite utrinque prope oculos, ore, palpis, autennarum articulis duobus 



