14 IOWA STUDIES IN NATURAL HISTORY 
Nezara viridula (Linneus) 
Plate I, Fig. 14 
1758. Cimex viridulus Linneus. Syst. Nat. (X Ed.) 444. 
It was no surprise to find this cosmopolite among the Scutelle- 
roidea on both the islands visited, and on Barbados it was sur- 
passed in abundance only by Edessa meditabunda. 
The shores along the west coast of this island rise in a series 
of terraces, each of which extends inland for approximately a 
half mile. Along the sides of these more or less precipitous 
slopes the vegetation often grows in considerable profusion for, 
when the rains come, the moisture is not evaporated so quickly 
as in the open. In addition to the present species, several other 
pentatomids and many kinds of plant-feeding bugs here find 
habitats suitable to their needs. WN. viridula was also found on 
weeds and various kinds of herbage growing in other protected 
places, for example the sides of the terraces on the Hawkins 
Estate. Collecting dates: May 16, 22, 28, 29 and June 3 and 6. 
Recent studies of this bug have shown that in both nymphal 
and adult stages it is a carrier and distributor of an internal 
fungous disease of the cotton boll on Barbados and neighboring 
islands, and it has, on this account, attracted considerable at- 
tention and study.* 
This species was not by any means so abundant at Antigua 
and but ten specimens represent our efforts during the months 
spent there. Most of these were taken from grass growing in 
an open, swampy field near Golden Grove, June 26. 
Piezodorus guildingi (Westwood) 
Plate I, Fig. 13 
1837. Raphigaster Guildinit [Westwood] Cat. Hope, Vol. 1, 31. 
A moderately common pentatomid in most places where we 
collected on both islands. It is a trimly built and very active 
species somewhat variable as to size, convexity and coloration. 
Fully colored adults are of a clear green with a narrow, reddish 
impuncetate, or sparsely punctate band across the pronotum. 
Length, 8.0-10.0 mm. 
The best collecting ground on Barbados was in the vicinity 
* Nowell, William, West Indian Bulletin, Vol. xv1, No. 3, 1917, 203-235. 
