MNEMOSYNE.—GRYNIA. 103 
Mas segmento pygoferi. ad medium in processum acutum producto, stylis dilatatis, spatium circulare 
includentibus, deinde convergentibus, processu utrinque longo auriculato; unco superiori lato supra, 
deinde in processum longum peracutum producto. 
Of a sordid testaceous or somewhat castaneous colour, with the vertex very narrow, somewhat excavate, a 
little produced in front of the eyes, which are large and very slightly excavate beneath; pronotum 
short, strongly sinuate at the base; carine of the scutellum sometimes marked indistinctly with darker 
lines; tegmina long, transparent, slightly dilated towards the apex, with testaceous and fuscous veins, 
and with more or less scattered fuscous spots, which are usually thicker at the middle and apex, the 
apical and subapical areas with minute granulations; abdomen pitchy-black ; legs testaceous. 
Male with the segment of the pygofer long, with a sharp process in the middle of the margin and a stout 
process on each side; styles broad, dilated, divergent, enclosing a circular space, then converging; on 
each side of these is a long and rather narrow auriculate process; upper hook-like process continued 
beneath into a long and slender spine, which nearly touches the central process of the segment. 
Long. cum tegm. 10 millim.; lat. ad hum. 43-5 millim. 
Hab. Panama, Volcan de Chiriqui and Bugaba (Champion). 
Fam, ACHILIDA*. 
There seems to be no reason why the Tropiduchide should be separated from the 
Achilide, and we have therefore classed them together. They are closely allied to 
the Cixiide, and appear chiefly to differ in the fact that the external or posterior vein 
of the clavus does not reach the apex or is united to the sutural or commissural margin 
near the tip. The following table will serve to distinguish the genera represented in 
Central America :— 
I. Sides of the clypeus carinate ; tegmina more or less dilated behind 
the clavus. [AcHILIna.] 
i. Tegmina strongly overlapping for their posterior third, not 
tectiform. 
1. Head only slightly produced beyond the eyes . . . . . PxiEcropergs, Spin. 
2. Head more or less strongly produced before the eyes, either 
rectangularly or in an obtuse triangle . . . . . Heticoprera, A. & S. 
3. Head produced before the eyes into a long snout, flattened 
at the sides. 2. 2. 2. 1 1 7 ew ee eh )06CPSEUDHELICOPTERA, gen. nov. 
ii. Tegmina not or scarcely overlapping, more or less tectiform . Crpvusa, gen. Nov. 
II. Sides of the clypeus not carinate, except sometimes feebly at the 
base; tegmina not dilated behind the clavus. [TRoripucHiNa.] 
i. Tegmina coriaceous . . . . . + + + « « «© © « « Grywta, Stal. 
ii. Tegmina vitreous . . . 2 1 ee © ee ee eh he) CRI, Stal. 
GRYNIA. 
Grynia, Stal, Berl. ent. Zeitschr. vi. p. 308 (1862). 
This genus may be known by the very long and prominent vertex, the strong keels 
on the vertex, pronotum, and scutellum, and the convex, cinereous, and thickly 
* By W. W. Fowzer. 
*14 2 
