CEEMNODES.— MICKOPSEPHUS. 149 



Mexican and Panama specimens is usually shining ferruginous, the club of the antennae 

 being the only dark part ; but the example from Chontales has the margin of the elytra 

 pale yellow, and those from Peru in my collection have the suture, and the greater part 

 of the thorax in addition, of the same pale colour, while one from Quito is nearly black, 

 with the underside, legs, and base of the antennae paler. I think, therefore, that this 

 is a widely spread and variable species ; it appears to be not uncommon where it occurs. 

 According to Mr. Champion, it is found in fungi growing upon trees. 



MICKOPSEPHUS. 



Corpus parvum, orbiculare, semiglobosum, glabrum. Tarsi quadriarticulati, filiformes, articulis tribus primia 

 subtus apicibus productis, tertio breviore, articulo quarto longo ; ungues simpliees. Antennae umdecim- 

 articulatae, articulis duobus primis validis, tertio ad octavum cylindricis, subsequalibus, inter se prope 

 adjuDctis, tribus ultimis clavam elongatam formantibus ; clava valida, artieulos sex praecedentes superans. 

 Caput parvum ; epistoma cum labrum clypeum quasi prebens, per lineam rectam bene indicata, labrum 

 baud bene discretum. Oculi rotundati, minute granulati. Protborax transversus, convexus, antice 

 declivus, basi sinuato-lobata, linea recta transversa lobum separante. Elytra valde convexa, leviter 

 marginata, epipleurae latse. Coxae valde separatae, processu prosternali lato deplanato. Pedes graciles. 



I propose this name for a genus of which at present I have only seen one species, 

 represented by three specimens — one from Mexico, the other two from Guatemala. 

 These little insects remind one at first sight of the European Aspidophorm orbiculatus, 

 to which in the size and outward form this species is very similar ; but the resemblance 

 is but superficial. Its real location is difficult, and it would, for anything I can see, be 

 as appropriately placed in the Mycetophagidse as anywhere else, if the structure of the 

 tarsi be taken as of primary importance, and it is to be remembered that several authors 

 place in that family Symbiotes, Mycetoma, and Leiestes. 



The fact appears to be, however, that none of those genera are satisfactorily placed 

 near Mycetophagus, in which the coxae are very little separated and the antennal 

 structure is very different. 



l. Micropsephus mniophilinus. (Tab. VIII. fig. 17.) 



Orbicularis, subglobosus, piceus, fere glaber ; capite prothoraceque dilutioribus, interdum rufo-piceis, antennis 

 pedibusque pallide runs. Long. \\ millim. 



Hab. Mexico, Teapa in Tabasco (H. H. Smith) ; Guatemala, Senahu in Vera Paz 

 (Champion). 



Pitchy-black, shining, nearly glabrous, the head and thorax more inclining to pitchy- 

 red (in the two Senahu specimens they are entirely deep blood-red), the front part of 

 the head with a few hairs (only visible under the microscope). Antennae nearly as long 

 as the thorax is wide, the club nearly half their length, the apical joint rather longer 

 and wider than either of the others. Thorax nearly twice as broad as long, the anterior 

 margin depressed, but not cut out for the head, not much narrowed in front ; a basal, 

 transverse, fine line reflexed at its ends so as to re-enter the base, marks off the ante- 



