42 HEMIPTERA-HOMOPTERA. 
1. Platycotis acutangula. 
Platycotis acutangula, Stal, Ofv. Vet.-Ak. Forh. xxvi. p. 263°. 
Hab. Mexico (Mus. Holm.!: 2). 
This species is described by St&l1 as “ Olivaceous-green, with the underside, head, 
and legs yellowish olivaceous ; prothorax with a sprinkling of yellow, with the lateral 
angles strongly produced ; tegmina greyish-hyaline, with the veins greenish towards 
the base, infuscate towards the apex, and the base of the clavus and of the costal and 
radial areas of the corium punctured, olivaceous-green, and sprinkled with yellow. 
Long. 7, lat. 4, lat. inter ang. lat. thor. 54 millim.” 
2. Platycotis tuberculata. (Tab. IV. figg. 2,2a; 3, 3a, 6, var.) 
Hoplophora tuberculata, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 278, t. 6. fig. 9°. 
Lophopelta tuberculata, Stal, Kongl. Sv. Vet.-Ak. Handl. Band viii. 1, p. 37’. 
Hoplophora ornata, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 274°. 
Hab. Norta America, California }.—Mexico?%, Amula and Xucumanatlan in 
Guerrero 6000 to 7000 feet (H. H. Smith), Jalapa (Hoge). 
There are two specimens from Mexico in the Vienna Museum under the name of 
Umbonia ornata. It is quite plain from Fairmaire’s description and figure! that this 
insect is his H. tuberculata, which he describes as from California. H. ornata, described 
as from Mexico, is most probably a variety of the same species, and I have, though 
with some doubt, as I have not seen the irsect, regarded it as synonymous with his 
H. tuberculata. The dorsal horn of P. tuberculata is very variable, being either longer 
than its breadth at the base, and extended considerably forward, or very short and not 
porrect, or altogether wanting and represented by a blunt prominence. Our fig. 2 is 
taken from an example from Jalapa. 
8. Platycotis discreta, sp. n.. (Tab. IV. figg. 4, 4 a, b.) 
‘Ochraceo-cinerea vel cinerea, pronoto sat fortiter punctato, haud rugoso; metopidio nigris maculis supra 
caput et inter humeros, humeris breviter productis, nigris ; dorso fere inermi tuberculo vix elevato nigra 
linea circumcincto, linea dorsali fortiter elevaté ad apicem et antice nigr&é, quoad cetera cum colore pro- 
thoracis congruenti ; tegminibus hyalinis, venis brunneis, clavo et margine costali fortiter punctatis versus 
basin brunneis ; pedibus testaceis nigro-maculatis. 
Of an ashy-ochraceous or ashy colour ; head very broad, with the hind margins and a central transverse line 
black; pronotum strongly punctured, not rugose, with black markings above the head and between the 
shoulders, which are only slightly produced; in the type these black markings consist of a line on each 
side of the dorsal line, which they touch between the shoulders, and two black points on each side of these ; 
shoulders black ; on the back there is a very blunt, scarcely raised tubercle, surrounded by a black circle, 
more or less distinctly marked, and there is a small patch of black on each side, touching the margins, at 
some distance before the apex; dorsal line strongly raised, black in front and at the apex ; tegmina hyaline, 
with the veins fuscous, in part brown, indistinctly variegated with greenish and brownish markings, with 
the clavus and costal margin strongly punctured; underside and legs testaceous, the latter spotted with black. 
Long. 8, cum tegm. 11 millim. ; lat. inter cornua 5 millim. 
Hab. Guatemata, San Joaquin and Cubulco in Vera Paz (Champion). 
