MYCOTKETUS. 67 



though very finely, punctate ; they are entirely deep black, but the trophi, prosternum, 

 and antennae (excepting the last four joints) are red. The elytra are brick-red, obsoletely 

 punctate-striate, with rather less than the apical third black ; and on each elytron near 

 the base is a trace of a small round obliterated dot. The underside is smooth, the sides 

 of the breast and episterna obsoletely punctate. Legs rusty-red, rather lighter in colour 

 than the body. The maxillary palpi have the apical joint widely dilated. Abdominal 

 lines distinct, traversing the basal segment, the metasternal ones short. 

 Two specimens. 



55. Mycotretus cercyonoides. 



Oblongo-ovatus, rufus, nitidus : elytris lsete sanguineis, margine laterali et apice nigris, leviter punctato- 

 striatis ; prothorace nigro vel nigreseente, antice rufescente ; antennis articulis quinque apiealibus nigris. 

 Long. 4 millim. 



Hah. Panama, David {Champion). 



Head deep blood-red, clouded with black at the base ; palpi, base of the antennae,, 

 and legs also clear red. Thorax black above, with a wedge-shaped spot extending from 

 the front margin to the middle ; in one example the whole front is blood-red ; its 

 punctuation is sparse but distinct. Elytra red, the entire lateral margin (in two 

 specimens) broadly black, with the apex more broadly so ; in two other specimens only 

 the apex is black, the black extending a little up the sides. The maxillary palpi 

 have their terminal joint only moderately widened. This is a very convex species, 

 difficult to place. I think the variation in colour may possibly be a sexual distinction. 



56. Mycotretus brevis. 



Breviter oblongo-ovatus, rufo-ferrugineus, convexus, capite et prothorace crebre fortius punctatis; elytria 

 punctulato-striatis, interstitiis minute punctatis, singulis punctis tribus fuscis, fere obliteratis, uno in 

 callo humerali, uno laterali, uno cum eis triangulum prsebente. Long. 3| millim. 



Hob. Panama, Bugaba (Champion). 



Above bright chestnut-red, almost sanguineous ; underneath with the legs and mouth 

 paler. Of a uniform short oval form. Thorax at the base twice as wide as long, with 

 a few indistinct cloudy marks on the disc. The elytra with rather flat interstices; the 

 spots very indistinct, the discal one between the fourth and fifth striae, the humeral 

 one almost obliterated ; the punctures in the striae not very close. The apical joint of 

 the maxillary palpi is very little more dilated than that of the labial palpi. Abdominal 

 and metasternal lines evident. This little insect is unfortunately unique; it may 

 probably vary in the distinctness of the three spots. It is shorter than any species of 

 Mycotretus known to me with the palpi so little dilated, and has much the form of 

 Tritoma. The tarsi are faintly fuscescent. 



K*2 



