MYCOTKETUS. 57 



27. Mycotretus vittatus. (Tab. III. fig. 21.) 



Oblongus, parum ovatus, saturate rufo-testaceus, parcius sat prof trade punctatus, eapite puncto vertical^ 

 prothorace punctis quinque, scutello, elytris sutura, vitta sat lata limbo lateral! epipleurisque, antennarum 

 artieulis quinque ultimis et tibiis, nigris ; elytris fortiter punctato-striatis. Long. 6 millim. 



Rah. Guatemala, Pantaleon, Zapote {Champion). 



Head red, with the exception of a vertical spot ; rather deeply and not very closely 

 punctured ; antennas light yellow at their base, the five apical joints black. Thorax 

 rather closely and deeply punctured ; deep rusty-red, with the lateral margins narrowly 

 black, and with two spots touching the front margin and three on the base. The 

 elytra have the suture as far as the second stria, the entire lateral limb and epipleurse, 

 and a vitta between the fourth and sixth striae (not reaching either the base or the 

 apex), deep black and sharply defined. 



This species has much the appearance of an Ischyrus owing to its parallel form. 



Two specimens. We figure the one from Zapote. 



28. Mycotretus alternans. 



Sordide rufo-testaceus, breviter oblongo-ovatus, fere glaber ; elytria flavi3, subtiliter puncto-lineatis, interstitiis 

 alternis fuseis ; antennis (artieulis tribus primis exceptis), prothoracis puncto in margine antico et altero 

 basali triangulari scutelloque, nigris. Long. 6-Qi millim. 



Hab. Panama, Bugaba (Champion). 



A very peculiar species as regards coloration. The head is unspotted ; the thorax 

 bears a minute dot in the centre of the front margin, and another in the middle of the 

 base. The elytra are lighter in colour than the thorax; the interstice between the 

 first and second striae and each alternate one is fuscous, the striae themselves being 

 blacker; the posterior part and also the two adjoining interstices after the fifth stria 

 are suffused with fuscous ; probably, from the appearance of our specimens, in life 

 these parts have a nacreous hue. Allied to M. dorso-notatus, but lacking the double 

 linear elytral spots. Five specimens. 



29. Mycotretus laccophilinus. (Tab. IV. fig. 5.) 



Oblongo-ovatus, rufo-testaceus ; elytris punctato-striatis, maculis duabus pallide fiavis, una laterali infra 

 bumerum, aegre discreta, altera transversali, versus apicem ; antennis nigris, artieulis tribus basalibus 

 testaceis. Long. 6 millim. 



Eab. Panama, Bugaba (Champion). 



This species somewhat resembles M. alternans ; its form is very evenly ovate, nearly 

 elliptical, and rather convex ; the head and thorax are light chestnut-red, smooth and 

 shining; the elytra are nearly of the same colour, but the punctured striae are faintly 

 fuscous, the punctures in them small and very closely placed, but becoming obsolete 

 before the apex. The spots, two on each elytron, are whitish-yellow ; the legs and 

 underside of the same light chestnut-red as the rest of the body. This and some other 



biol. cente.-amee., Coleopt., Vol. VII., April 1888. /* 



