ASYNCHITA.—SYNCHITA. 449 
1. Asynchita granosa, sp.n. (Tab. XIV. figg. 7; 74, posterior tarsus. ) 
Elongata, subcylindrica, picea, opaca, granulosa, parce hispida ; prothorace lateribus regulariter denticulatis. 
Long. 4-5 millim. ~ 
Hab. Panama, Volcan de Chiriqui (Champion). 
Antenne thick, short; first joint concealed ; second and third subequal in length, the 
latter rather the more slender; 4-9 short, the ninth very distinctly transverse ; tenth 
rather large, with an imperfectly separated pubescent apex. Head finely granulose ; 
epistome with an angle on each side in front; eyes free, convex. Thorax rather longer 
than broad, almost parallel-sided, with the front nearly straight, the base a little 
rounded, the surface very regularly and distinctly granulate, the sides finely denticulate 
or tuberculate, each of the little tubercles bearing a fine exserted seta. Elytra with 
numerous series of fine crenulations, and with fine, scanty, erect, serial sete. 
Five specimens have been procured of this distinct insect. 
SYNCHITA. 
Synchita, Hellwig, Schneider’s Mag. 1792, p. 401. 
Synchita has apparently a wide distribution, though it is very doubtful whether all 
of the fifteen species placed in it really belong to the genus. 
1. Synchita mimetes, sp.n. (Tab. XIV. fig. 8.) 
Minuta, depressa, ferruginea, opaca; antennis pedibusque testaceis; prothorace elytrisque costatis, his costis. 
primo et tertio versus apicem conjunctis. 
Long. 2 millim. 
Hab. British Honpuras, Belize (Blancaneauz). 
Head short, with a fine raised margin on each side. Antenne small; first and 
second joints very short and thick, equal, the first concealed by the epistome ; joints 
3-9 small, nearly equal, the eighth and ninth, however, a little broader, so as to be 
broader than long; the third scarcely so large as the fourth ; tenth joint forming an 
abrupt round club. Eyes very coarsely facetted. Thorax slightly transverse, roughly 
sculptured, parallel at the sides, which are strongly denticulate; on each side of the 
middle with two strongly raised coste, and at the base nearer the middle with a less 
strongly raised elevation, which extends about halfway to the front. LHlytra coarsely 
sculptured, each with four coste in addition to the raised suture; the third costa 
curves round near the tip and joins the first. Legs feeble ; tibie slender at the tip. 
Only one example has been found of this minute species. It closely resembles 
Bitoma sxuthioides; but the coalescent first and third coste distinguish it very readily 
even when the structure of the antenne cannot be seen. 
This insect has apparently considerable stridulating capacity, as on pressing the base 
of the abdomen of the specimen in a relaxed condition an audible sound was always 
to be heard. 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, October 1894, 3 M* 
