102 | HEMIPTERA-HETEROPTERA. 
1. Piezosternum subulatum. 
Cimex subulatus, Thunb. Nov. Ins. Spec. ii. p. 41, tab. 2. fig. 55 ; Dissertationes, iii. p. 161, tab. 8. 
fig. 11; Gmel. Syst. Nat. 1. 4, p. 2146. 266. 
Cimex vacca, Fabr. Ent. Syst. iv. p. 92. 51; Cog. Il. Ins. ii. p. 81, tab. 19. fig. 2. 
Cimex gazella, Fabr. Ent. Syst. iv. p. 92. 52. 
Edessa gazella, Fabr. Syst. Rhynch. p. 147. 5°. 
Edessa vacca, Fabr. Syst. Rhynch. p. 147. 6. 
Pentatoma mucronata, Palis. Beauv. Ins. p. 46, Hém. pl. 6. figs. 5 & 6’; St.-Farg. & Serv. Enc. 
Méth. x. p. 55. 12. 
_Piezosternum mucronatum, A. & S. Hist. des Hém. p. 162. 1’. 
Piezosternum subulatum, Dall. List Hem. i. p. 338. 2; Stal, Hem. Fabr. i. p. 40.2; En. Hem. i. 
p. 64, 24, | 
Hab. Mexico, Vera Cruz*; Panama, Chiriqui (Boucard).—ANTILLES, Cuba‘, St. 
Domingo, Martinique 1.—Corompna, Bogota (coll. Dist.); Guiana, Demerara (coll. 
Dist.) ; Brazit, Pebas (coll. Dist.). 
Amyot and Serville 3, in giving ‘‘ Oware (Afrique) ” as a locality for this species, have 
evidently confused it with P.calidum, Fabr. Considerable variation occurs in the 
apices of the lateral pronotal angles, which, though they may generally and correctly 
be described as subacute, are more or less developed in that direction in different 
specimens. From an examination of my own specimens I should incline to the opinion 
that these gradually become more acute towards the south. 
PANTOCHLORA. 
Pantochlora, Stal, En. Hem. i. p. 64 (1870). 
The antenne, as in the last genus, are five-jointed; but Pantochlora is at once 
separated from Piezosternum by the posterior margin of the pronotum not being 
produced over the base of the scutellum. But one species is known; and the genus 
seems to be confined to Central America. 
1. Pantochlora vivida. (Tab. VIII. fig. 7.) 
Pantochlora vivida, Stal, En. Hem. i. p. 65. 1’. 
’ Hab. Mexico, Yucatan, Campeachy!; GuatTemata, La Tinta, Panima and San 
Joaquin (Champion). 
Subfam. DINIDORINZ. 
Dinidorina, Stal, En. Hem. i. p. 79 (1870). 
Only one genus of this subfamily is found in America, and that in the Neotropical 
Region ; the majority of the Dinidorine are found in the Old World, and are distri- 
buted much in the samé way as the previous subfamily, Tessaratomine. 
