AMBLYSTIRA. 31 
hyaline portion of the costal area with much larger areole, which are very unequal in size; costal area 
becoming exceedingly narrow towards the base and apex, uni- or biseriate at the widest part. 
Length 24-22, breadth 1-1), millim. 
Hab. GuateMata, San Isidro, Volcan de Atitlan, Rio Maria Linda (Champion). 
Nine examples, all from the Pacific slope. Differs from A. fuscitarsis in the dull, 
unicarinate pronotum, the posterior process of which is more obtuse at the tip and 
less strongly carinate, and also in the reticulation of the elytra, the large areole in 
the apical third being smaller than in A. fuscitarsis and the other portion closely 
reticulated ; moreover, the basal portion of the costa is entirely black. In certain 
lights faint traces of the usual outer pronotal carine are to be seen. In one specimen 
there are two rows of areole on the hyaline porion of the costa] area. 
3. Amblystira atrinervis, n. sp. (Tab. II. fig. 24. 
Moderately long, dull, black, when fresh covered with a bluish-white waxy secretion, the elytra with the 
areole at the apex and also those in the costal area clear hyaline, the nervures of the latter to far beyond 
the middle yellowish-white, those at the apex and in the sutural area black; the antenne with joints 1 
and 2 black (the others broken off); the legs flavo-testaceous, with the femora slightly infuscate and the 
tarsi black. Head rugulose; antenne with the basal joint longer than the second. Pronotum feebly, 
transversely convex, rapidly narrowing forwards and slightly constricted in front; densely, somewhat 
coarsely punctate, finely tricarinate, the median carina not reaching the tip of the triangular posterior 
portion, the latter acute, the margins finely varinate. Elytra moderately long, a little rounded on the 
costa below the base; discoidal and subcostal areas closely impresscd with small punctiform areole, 
the discoidal area flat and not quite reaching the middle; costal area rather broad, the areole in the 
basal third small and uniseriate, large and biseriate in the widest part, the costal nervure very stout ; 
sutural area with a very large pentagonal areole before the tip, the areole along the margin also large. 
Abdomen with a pair of prominent curved pincer-like processes at the apex. 
Length 3, breadth 14 millim. (¢.) 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
One example. Differs from the other species of the genus in the less convex, more 
distinctly margined pronotum, and the wider hyaline costal area of the elytra. 
4, Amblystira levifrons, n. sp. (Tab. II. fig. 25.) 
Moderately elongate, narrow, shining; black, the pronotum with a small triangular spot in the middle in 
front and the apex of the triangular posterior process, and the elytra with the base, a median fascia (not 
extending to the sutural area), and the costal area for some distance beyond it, flavous; the antenne 
flavous, with the apical joint black, except at the base; the legs flavous, with the tarsi fuscous. Head 
smooth; antenne moderately long, slender, joints 1 and 2 equal. Pronotum transversely convex, 
constricted in front; coarsely, closely punctate and unicarinate, the carina extending to the tip of the 
posterior process and becoming very prominent behind. Elytra moderately long, dilated towards the 
middle, the costal margin bisinuate ; discoidal area coarsely punctured, large, somewhat convex, extending 
to the middle, and surrounded by prominent nervures, the outer one sinuous and parallel with the costal 
margin ; subcostal area extending to the costal margin, with two rows of coarse punctures; costal area 
commencing beyond the discoidal area, and continuous with the sutural area, a row of large tetragonal 
areole extending along the suture to the costal area, the apical half of the sutural area widely and 
unequally reticulated. 
Length 24, breadth 1 millim. . 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
Three examples. 
