DYSYNCRITUS.—DARNOIDES. 81 
Oblong, subparallel, with the head moderately large; metopidium almost straight, narrowly impressed trans- 
versely on each side above the head ; pronotum kite-shaped, with the shoulders distinctly but not strongly 
prominent, gradually narrowed behind, very narrow in comparison with the tegmina if viewed from the 
sides, the central carina distinct, more or less sinuate, the apex ceasing considerably before the apex of the 
tegmina; tegmina large, corium with five apical areas, none of which are stylate, but all more or less 
oblong, with the veins thick and more or less curved; there is one discoidal area near the exterior 
margin, and the third basal area is so strongly petiolate that it appears like a discoidal area in the centre 
of the disc ; corium entirely exposed, with a large vein proceeding from the base and touching its margin 
not far from the centre; posterior tarsi longer than the others, posterior tibie with rows of spines on 
each side. 
This genus evidently belongs to the Darnine, and it appears to be rather closely 
telated to Nassunia, from which, however, it is very different as regards facies; in 
general appearance it resembles a narrower form of Hypamastris. 
1. Dysyncritus intectus, sp.n. (Tab. VI figg. 18, 13 a, 4.) 
Sat angustus, brunneus, testaceo albidoque variegatus, capite latitudine variante, testaceo, unicolori, vel 
brunneo-asperso ; pronoto vitté vel macula albescenti pone medium et altera ante apicem, dense fortiusque 
punctato, haud nitido, apice acuminato; tegminibus hyalinis basin versus, medio excepto, opacis, punctatis, 
venis partim nigricantibus, partim testaceis, apice exteriori fuscato; abdomine testaceo ; pedibus testaceis, 
tibiis et femoribus plus minusve infuscatis, his interdum fere totis nigricantibus. 
Head unicolorous, testaceous, or mottled with brown; prothorax dark brown, variegated with testaceous and 
whitish spots or patches, there being two whitish or brownish-white spots or bands behind the middle 
and before the apex ; with the exception of these markings the front parts are lighter than the apical 
portion, and are very variable in shade of colour; the surface of the pronotum is dull, closely and strongly 
punctured ; tegmina hyaline, opaque and punctate towards the base, with the exception of the central 
portion ; veins large, partly black and partly testaceous, the outer margin at the apex infuscate; abdomen 
testaceous ; legs testaceous, with the tibize and femora more or less infuscate; the dorsum, if viewed from 
the side, is variable in sinuation, the front part being more raised 1 in some cases than in others, 
Long. cum tegm. 5 millim. ; lat. int. hum. 2 millim. 
Hab. Mexico, Teapa in Tabasco (H. Z7. Smith) ; ; GUATEMALA, San Juan in Vera Paz, 
Pantaleon 1700 feet (Champion). 
A specimen from Teapa is figured. 
DARNOIDES. 
Darnoides, Fairmaire, Ann. Soc. Ent.. Fr. sér. 2, iv. p. 495 (1846). 
This genus is represented by three or four species from Central or South America ; 
with the exception of D. limbata, Fairm., they are small insects, and are more closely allied 
to Acutalis than to Darnis, to which, they bear very little resemblance. I believe that 
D. brunnea, Germ., and the insect here described probably belong to a separate genus, 
but it is better to leave all the species together in the present state of our knowledge. 
Apart from the shape and size, the venation of the tegmina is somewhat different, the 
strongly-marked discoidal area in D. limbata, the type of the genus, being absent or only 
slightly indicated in the smaller species; the general type of the venation, however, is 
the same, and the number of discoidal areas seem more variable than in any other 
BIOL. CENTR.-AMER., Rhynch. Homop., Vol. II., July 1895. *TI 
