MYSIDIA. 13 
4. Mysidia nebulosa. (Tab. VIII. figg. 19, 19.) 
Mysidia nebulosa, Walk. List of Homopt. Ins., Suppl. p. 97°. 
Hab. Guatemaua, Cahabon in Vera Paz, Zapote (Champion); Panama, Bugaba, David, 
Volcan de Chiriqui (Champion).— Amazons, Santarem 1. 
The insects belonging to this species differ considerably, some having the tegmina 
feebiy suffused with fuscous, while in others the colour is much more marked and 
more or less testaceous. 
A specimen from Zapote is figured. 
5. Mysidia parviceps, sp.n. (Tab. VIII. figg. 20, 20a.) 
M. nebulose precipue affinis, sed capite minori, tegminibusque haud nebulosis, distinguenda. 
Very closely allied to M. nebulosa, of which it may be a plain variety, but distinguished by its somewhat less 
average size, small head, and the absence of nebulose markings on the tegmina; the body is evidently 
more or less green in life. 
Long. 10 millim.; lat. ad hum. 2 millim.; exp. tegm. 16-18 millim. 
Hab. Guatemata, Zapote (Champion). 
6. Mysidia maculicosta, sp.n. (Tab. VIII. figg. 21, 21a.) 
Lacteo-albescens, pellucida; capite perangusto, ante oculos paullo producto ; pronoto angustissimo ; tegminibus 
longis, costa ad basim irregulariter et sat late fusco maculata; alis macula una fuscé ad medium instructis ; 
pedibus testaceis. 
Of a transparent milky-white colour ; head very narrow, distinctly produced before the eyes and plainly longer 
than the pronotum ; tegmina long and narrow, with an irregular fuscous patch occupying the base of the 
costa ; the transverse veins are marked by small dark spots, the exterior one being the largest, and the 
subapical margin is furnished with minute dark spots at the apex of the veins and with a small patch 
before the middle; there is a dark patch on each wing; these markings are probably variable; legs 
testaceous, very slender. 
Long. 12-18 millim.; lat. ad hum. 2 millim.; exp. tegm. 22 millim. 
Hab. Guavremaua, Pantaleon (Champion) ; Costa Rica, Caché (Rogers). 
7. Mysidia elatior, sp.n. (Tab. VIII. fig. 22.) 
Pracedenti affinis, sed capite latiori subtriangulari facile distinguenda ; pronoto angulariter producto; tegmi- 
nibus fusco notatis, macula ad medium coste precipue conspicué; pedibus testaceis. 
Allied to M. maculicosta, but differing from it in having the head broader and plainly produced before the eyes 
in an isosceles triangle, which is rounded or subtruncate at the apex ; the frons is very narrow, narrower 
than in the preceding species ; the tegmina are spotted with fuscous, a dark irregular patch at about 
the middle of the interior margin being most conspicuous; the transverse subapical veins of the wings 
are dark, but there is no distinct fuscous patch ; legs testaceous. 
Long. 10 millim.; lat. ad hum. 2 millim.; exp. tegm. 20-21 millim. 
Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion). 
Several specimens. 
BIOL. CENTR.-AMER., Rhynch. Homop., October 1900. *I0 
