MEMBRA C1DJE. 
255 
ISCHNOCENTRUS INCONSPICUOUS, n.s. 
(Plate LIX. figs. 2, 2a.) 
Small, without suprahumerals. Metopidium short, roundly protuberant on the 
dorsum, and ending in an abbreviated posterior horn, free above the abdomen. 
This horn is slightly longer than that developed in the next described species. 
Colour dark punctured brown. Abdomen large and ringed. Legs more robust than 
in I. niger. Tegmina simple, membrane hyaline and corrugated, with strong yellow 
nervures. Eyes large. Frons with a white pubescence like a hoary beard. Proboscis 
short and stout. 
Size, 4x3 mm. 
Habitat. —Cachabe, “at a low elevation.” 
Rosenberg Collection. 
ISCHNOCENTRUS NIGER, Fowl. 
(Plate LIX. fig. 4.) 
Fowl. l.c. Tab. IX. fig. 19, p. 155. I. ferruginosus, Stal. 
Very small. Pronotum short, and tinged with faint dark-ochreous, punctured. 
The posterior process is very short, nearly straight, and raised quite clear of the 
scutellum. Tegmina dark, the apical ends hyaline, with strong dark neuration. 
There is an obscure whitish patch below the suprahumerals, which are obsolete. 
Legs with ochreous knees. 
Size, 4x2 mm. 
Habitat .—Yolcan de Chiriqui, Colombia, 4000 feet. 
Fowler Collection. 
Except from its small size, and that Ischnocentrus has no suprahumeral horns, the 
genus Rabduchus might almost be merged in Ischnocentrus, yet the former is not 
an American species like the last. 
Genus: PH/EROTUS, n.g. 
Whole insect globose, tumid. Pronotum roughly tuberculate, particularly on the 
dorsum. Legs robust, tibiae not spatulate. Tegmina short and round at the tips. 
Pronotum partially covers the scutellum. 
PHH1ROTUS STIPULIPENNIS, n.s. 
(Plate LIX. figs. 3, 3a-3c.) 
Colour dark fuscous, form globulose. A protuberance on the dorsum, and a 
swelling before the apex which can scarcely be called a true posterior horn. Legs 
robust, and ferruginous as to the tibia?. Tegmina short and rounded, mottled with 
