MYCOTEETUS. 69 



M. sanguinosus differs from M. fuscitarsis by having the tarsi of the same colour as the 

 legs and body, and by the sides of the breast and episterna being impunctate ; and also, 

 at least in our specimens, by the antennae having seven joints red, but one joint before 

 the club being black. The interstices of the elytra are very faintly punctate. 



60. Mycotretus rufipennis. 



Oblongo-ovatus, antice posticeque attenuatus, parum convexus, niger; capite, antennarum basi, prothoracis 

 limbo laterali, elytris, tarsis abdomineque rufis. Long. 5 millim. 



Hah. Mexico, Cerro de Plumas (Hoge). 



Eather depressed, very finely punctured ; elytra only with obsolete traces of serial 

 punctures, which are more distinct at the sides. Almost exactly, resembling Para- 

 tritoma vivida in colour, but larger and certainly distinct ; the antennae, as usual in 

 Mycotretus, with five or six joints at the base yellow ; the epistome more produced ; 

 and the punctuation of the head and thorax excessively fine, the latter pitchy-black 

 and with the yellow margins shading off into the ground-colour. Legs pitchy-black, 

 with the knees and tips of the tibiae reddish. The maxillary palpi have the apical 

 joint feebly lunate. Tarsi red, but fuscous above, especially the front pair. Judging by 

 the mentum this is a true Mycotretus, but it is difficult to compare with any other ; it has 

 a little the appearance of species of the M. corallipennis section, from which its feebly 

 developed palpi, punctuation, &c, at once separate it. 



A single specimen. 



61. Mycotretus epopterus. (Tab. IV. fig. 7.) 



Oblongus, subparallelus, rufulus ; vertieis puncto, protboracis macula transversa, pectore, tibiarum apicibus 

 tarsisque nigris; elytris flavis, ptmctis duobus basalibus fascia mediana lata, sutura postice apiceque 

 nigris. Long. 5| millim. 



Eab. Mexico, Toxpam (Salle). . 



Head and thorax very shining ; distinctly and rather thickly punctured, but finely 

 {so that the surface is very shining and smooth) ; their colour and that of the basal five 

 joints of the antennae and of the legs is a rich pitchy-red, almost blood-red. The disc 

 of the thorax has a transverse and not very regular black mark, united in the middle 

 to the base. The elytra are yellow, with the exception of two spots at the base, one 

 on the callus, and one close to the scutellum, a broad middle fascia, the apex, and the 

 suture behind the fascia ; the latter is indented twice on the basal, and once on the 

 apical side. The tips of the tibiae and the tarsi are black. The form and markings of 

 this insect are very suggestive of Ischyrus, but it belongs to the genus Mycotretus. 



A single specimen. 



62. Mycotretus (?) oppositipunctum, (Tab. IV. fig. 6.) 



Oblongo-ovatus, postice attenuatus, ater; prothorace et capite flavis, crebre ac minute punctatis, hoc inter 



