146 ENDOMYCHIDJE. 



to the rest of the antenna. The thorax is more contracted at its base, the hind angles 

 appearing rectangular, so that the elytra are very clearly wider than the base of the 

 thorax. The punctures are only visible under the microscope, and upon the elytra, 

 although pitchy clots are to be seen, no punctures are visible. The legs and tarsi are 

 pale rusty-red. 



One specimen from Teapa, two from Toxpam. 



3. Exysma orbicularis. (Tab. viil. fig. 14.) 



Orbicularis, badia ; antennis in medio infuscatis, elava laxe articulata. Long. 1 millim. 



Hdb. Guatemala (Salle), El Tumbador (Champion). 



There is one specimen from each of the above localities, differing from E. laevigata 

 in having the antennae longer, all the joints more loosely connected, the club longer, 

 and the three or four joints preceding the apical one infuscate or at least darker than 

 those at the base. The thorax appears to be a little more finely punctulate ; but as 

 regards this the series is too small to render the observation of much use. 



4. Exysma (?) tenuicornis. (Tab. VIII. fig. 15.) 



Oblongo-ovata, suborbiculata, castanea, tenuiter breviterque pilosa, perobsolete minute punctata; antennis 

 pedibusque gracilibus, testaceis ; prothoracis basi sinuata, medio lobafco, lineis basalibus tenuissimis. Long. 

 1 millim. 



Hob. Guatemala, Zapote (Champion). 



About the same size as E. orbicularis, but more convex. The antennas are very 

 much thinner, and have the joints elongate ; the basal joint is especially long and club- 

 shaped, a little curved at the base ; the second stout, but longer than wide ; the form 

 of the five succeeding joints thin (I am not able to state the number certainly) ; the 

 apical three joints forming a long and very lax club ; all the joints are pale testaceous- 

 yellow. The thorax is deflexed in front, concealing the head, the sides are narrowly 

 margined, and the margin a little reflexed ; the fine sulci are short and converge ; the 

 hind angles are acute. The elytra at the base are rather wider than the thorax, very 

 convex, a little pointed at their apex, and finely pilose ; obsolete punctures surrounded 

 by darker chestnut dots are visible all over their surface, with small points between 

 them here and there ; the margin is very fine, and has a very fine stria adjoining it ; 

 the suture is without stria. 



A single specimen. 



DIALEXIA. 



Corpus breviter subglobosum, fere hemisphsericum, parvulum. Antennae breves, novem-articulatae ; clava 

 valida, triarticulata. Pronotum convexum, antice angustatum, lateribus leviter marginatis, basi sinuata, 

 medio valde lobato, disco baud sulcato. Elytra convexa, perobsolete punctata, breviter pilosula, fere 

 setulosa. Tarsi 4-articulati, articulo basaH antico apice lobato-producto. Prosternum spathulatum, pone 

 coxas leviter ampliatum, apice rotundato. 



