38 TRANS. S. D. SOCIETY NATURAL HISTORY 
bose. Hind tibiz unarmed. Elytra subparallel, the costa arcuated 
at base; claval veins united beyond the middle; radial and ulnar 
nervures united by a short transverse vein about half way to the 
fork of the ulnar; radial forked a little before the outer ulnar; 
apical areoles eleven, the first three beyond the large stigma trans- 
verse. Wings with two transverse veins and two stylate apical 
areoles. This genus is distinct by its broad convex ecarinate front, 
broad vertex, the form of the lateral carine of the pronotum and 
the unarmed hind tibie. 
Type of the genus Platycixius calvus n. sp. 
223. Platycivius calvus n. sp. 
Vertex equally long and broad, slightly narrower before and 
feebly arcuated at apex, the median carina not attaining the apex. 
Front broadest a little beyond the middle, the apex feebly curved 
across the base of the clypeus. Pronotum hardly half the length 
of the vertex, deeply angularly emarginate behind. Mesonotal 
carine subparallel, the median obsolete on apical third. Elytral 
nervures very obscurely granulated. Length to tne apex of the 
abdomen 5 mm., to tip on the elytra about 614 mm. 
Color black, head, pronotum and legs luteo-testaceous, the 
former with a blackish shade about the frontal ocellus which ex- 
tends down either side of the clypeus leaving a pale convex median 
vitta which is scarcely carinate. Narrow margin of the abdominal 
ing with the apex of the lateral carine at the hind margin. Meson- 
otum large, tricarinate. Basal joint of the antenne large, subglo- 
segments pale. Elytra faintly smoky hyaline, nervures strong, 
fuscous, a faint fuscous cloud along the apex and a crescentic fus- 
cous mark on the seventh to the tenth apical areoles; stigma large 
and fuscous, becoming black at either end with a white callous 
within the base. Wings hyaline, nervures brown. 
Described from one female specimen taken near a small stream 
at Mussey’s, on April 12th, 1914. 
224. Microledrida fuscata n. sp. 
Closely allied to asperata Fowler but shorter and darker in 
color. Length 214 mm. 
Vertex produced for one half its length before the eyes, its 
caring strong. Front rather strongly inflated, distinctly trans- 
verse, the carine distinct but not as strong as those of the vertex, 
the frontal ocellus barely indicated. Clypeus long, acutely triang- 
ular, its basal suture regularly arcuated. Pronotum about one 
half the length of the vertex, its margins nearly parallel, median 
carina strong. Mesonotum longer than the vertex, tricarinate, the 
median feeble. Elytra broad, strongly inflated near the base, the 
sides almost straight for a space, apex subangularly rounded, with 
ten areoles beyond the stigma, the fifth and eighth small and trian- 
gular; nervures strong, punctate. Male genital segment broadly 
excavated the base of the sinus sometimes with a feeble tooth; 
stiles divergent at base, converging above leaving an oval opening, 
the subacute inner angle of the hammer-shaped apices in contact, 
their apical margins sinuated, not arcuated as in asperata; pygof- 
ers a little exceeding the plates. 
SS 
