MYLLANA.—BAMONA. 287 
5. Myllena robusta. 
Densissime subtilissimeque punctulata, brevissime sericeo-pubescens, nigra, antennis fuscis, palpis pedibusque 
sordide testaceis ; prothorace basi subrotundato, angulis posterioribus obtusis; antennis minus eclongatis 
subgracilibus. 
Long. circiter 24 millim. 
Hab. GuaTEMALA, near the city (Champion). 
Antenne about as long as head and thorax, dark; the basal joint sordid yellow; 
joints four to ten, each but little longer than broad. Thorax with the base a little 
rounded and not sinuate, so that the hind angles are slightly obtuse. Elytra rather 
longer than thorax, and only slightly sinuate at the outer angle. 
The broader form, dark colour, and shorter antennz render this species easily 
recognized. Only one badly preserved individual has been found. 
Group OLIGOTINA. 
All the tarsi four-jointed. 
This group will comprise not only the forms with ten-jointed, but also those with 
eleven-jointed antenne, so that Pronomea and Diglossa, as well as Huryglossa, will be 
located in it; the new genera Bamona, Saphoglossa, and Barychara indicate that this 
association will probably prove to be a natural one. 
BAMONA. 
Coxe intermedi contigue. Gens haud marginate ; palpi mandibuleque haud elongati; antenne undecim- 
articulate. Tarsi omnes quadriarticulati, articulo ultimo apicem versus paulo crassiore. 
This genus should find its place near Diglossa and Pronomea, from both of which 
genera it differs by the ordinary trophi, and from the latter more especially by the quite 
contiguous middle coxe. The characters of the genus are drawn from JB. gracilis, and 
only fully apply to the three species placed at the head of the genus. The form is that 
of Falagria or the slender Tachyusw, and the head is borne on a slender neck; the 
side pieces of the prothorax are not inflexed, and the prosternum in front of the coxe 
is large. The middle coxe are contiguous throughout the greater part of their length, 
so that the short mesosternal process is largely separated from the metasternum. The 
tarsi are rather elongate, the basal joint forming nearly half the length of the tarsus. 
These species are probably riparial in their habits like our Tachyuse. The other species 
I have provisionally referred to the genus are of less slender form and have a more 
Homalotoid appearance, and the tarsi are short; but at present I do not think it is 
necessary to isolate them generically, nor could I, from the material before me, ascertain 
their characters satisfactorily. 
