RECHOTA.—MERONA. 229 
1. Rechota impressa. (Tab. VI. fig. 5.) 
Gracilis, nigra vix snescente (abdomine basi interdum pallidiore), nitida sed pube tenuissima sat dense 
vestita, haud perspicue punctulata, pedibus fusco-testaceis, femoribus basi tarsisque dilutioribus ; pro- 
thorace quam elytra multo angustiore, ante basin late profundeque impresso. 
Long. 23-3 millim. 
Hab. Guatemata, San Gerénimo, Guatemala city, Capetillo, San Joaquin in Vera 
Paz, and Coban (Champion). 
Antenne only moderately long and slender; third joint a little shorter than second ; 
tenth scarcely so long as broad: the colour is nearly black; but the basal joint is some- 
times obscure yellow. Head about as broad as thorax, excessively finely punctulate, 
rather deeply impressed along the middle. Thorax not so long as broad, conspicuously 
narrower than the elytra, the greatest width near the front angles, which are very 
rounded and depressed, the sides a little narrowed behind, with a large but variable 
impression along the middle. Elytra quadrate, longer than thorax. Hind body not 
narrowed at base, its punctuation extremely dense and fine, but not quite so invisible as 
that on the anterior parts. 
The small series of specimens shows a good deal of variation, as regards the thoracic 
impression, the colour of the legs and base of the antenne, and the basal segments of 
the hind body. 
MERONA. 
Prosternum parvulum, parte supracoxali truncata, post coxas membranaceum. Coxe intermediz sat distantes. 
Mesosternum inter coxas vix productum, apice truncato, haud libero. Tarsi anteriores 4-, intermedii et 
posteriores 5-articulati. 
This genus is proposed for some minute insects the described species of which have 
not yet been distinguished from Falagria. The structure of the prosternum is so 
profoundly different, however, that the proximity of the two forms cannot be great. 
The antecoxal portion of the prosternum is not large, and is not separated by any 
definite mark from the supracoxal portion, which also is not large, and is truncate, or 
nearly so, behind; the posterior portion of the prosternum is entirely membranous. 
The mesosternum has no trace of a neck in front. Additional remarks elucidating this 
and other genera proposed in this work at the expense of Falagria will be found 
under the heading of the latter generic name. 
The genus will contain, in addition to the species here enumerated, F. venustula, Er., 
and some undescribed Brazilian species, and possibly /. deliciata, Er. ‘These insects 
have the prothorax without channel ; its anterior portion, too, is little elongate, so that 
the head appears less free than in the allied genera. Both Merona and Neolara have 
the side pieces of the prothorax very much reduced in size, and approximate in this 
respect to Falagria. 
