288 OKTHOPTERA. 



prominent, almost equally broad and rounded above as below, separated by a space equal to ( c? ) or a 

 very little more than (?) the diameter of the basal antennal joint ; the fastigium sub-acuminate, 

 shallowly sulcate, about as long as its basal width. Frontal costa prominent and roundly produced 

 between the antennae, much reduced at the ocellus and below, continuous to the elypeus and shallowly 

 sulcate. Antennae moderately slender as compared with those of Vilerna, feebly nodulose, only a few of 

 the sub-basal joints somewhat flattened, nearly as long as the head and pronotum combined. Pronotum 

 rather coarsely and closely punctate, but most profusely so on the hind lobe, the sides slightly bulging ; 

 the median carina prominent, severed by all three of the transverse sulci ; anterior edge broadly rounded, 

 the posterior margin sub-angulate. Tegmina tapering, their apices acuminately rounded, nearly (?) or 

 quite ( (J ) one-half the length of the abdomen, their posterior edges overlapping. Hind femora moderately 

 robust and elongate, about reaching (?) or surpassing ( tf ) the tip of the abdomen approximately one- 

 fourth of their length. Supra-anal plate provided on its disc with a number of dark granules or nodules, 

 which are arranged in series. 



Disc, upper two-thirds of sides of pronotum, upper part of the face and frontal costa below the ocellus, a 

 triangular patch on occiput, sides of head back of eyes, most of tegmina, and pleura and antennae light 

 chocolate-brown ; eyes castaneous ; abdomen above brunneo-testaceous ; greater portion of face, fastigium, 

 two posterior diverging bands on occiput, cheeks below the eyes, lower edges of lateral lobes and outer 

 lateral margins of disc of pronotum, dorsal angle of tegmina, and an oblique dash on pleura in advance of 

 each middle and hind coxa, flavo-testaceous. Legs greenish- olive, becoming paler towards their base, at 

 knees, and on the tarsi. Antennae with a well-marked pale annulation near the apex and two or three 

 much fainter ones basally. Yenter pale, with a greenish tinge on meso- and metathorax. 



Length of body, tf 17, $ 24; of pronotum, 6 3-35, $ 6-1 ; of tegmina, tf 6-4, $ 7; of hind femora, 6 10-5, 

 2 13 ; of antennae, c? $ , 8 millim. 



Hab. Costa Rica, Pozo Azul (M. A. Carriker). 



The collection at hand contains several specimens of both sexes. They differ 

 conspicuously from L. brevipennis, Rehn, in the colour of the legs, though the colour- 

 pattern of the paler portion of the head and thorax is similar in the two species. 



3. Leptomerinthophora flavovittata, sp. n. 



Yery similar to the preceding species, but differing from it in being a little more slender in build, in having 

 the fastigium of the vertex rounded, instead of triangulate, the antennee a little shorter, and the eyes less 

 prominent, a trifle more oblique and somewhat narrowest above. The colour contrasts are also much 

 more pronounced in the present species than in the one to which it has just been compared : the pale 

 lines are broader and more conspicuous, being of a pale yellow or cream- colour ; the legs are also paler 

 green, and have the apex of the hind femora and the base of the tibiae testaceo-ferruginous. 



Hab. Costa Rica, Juan Vinas (L. Bruner). 



At first glance L. flavovittata recalls some of the short-winged forms of the genera 

 Melanoplus and Dichroplus. It seems to be confined in its distribution to the eastern 

 or Atlantic slope, while the other three mentioned in this paper belong to the Pacific 

 side of the country. 



4. Leptomerinthophora modesta, sp. n. 



Closely related to the L. brevipennis, Eehn, but recognizable by its distinctly banded hind femora and by the 

 very obscure pale markings on the head, thorax, and tegmina. It is also more rugose than any of the 

 other species, and lacks all green ox greenish tints in its coloration. 



Length of body, J 15, $ 22; of pronotum, <$ 4, <J 51; of tegmina, <3 4-5, $ 6-5; of hind femora, tf 9-5, 

 5 12 ; of antennae, 6 6, $ 7 millim. 



Hab. Costa Rica, Monte Redondo (L. Bruner). 



