176 prof. p. r. uhler ok the [Mar. 6, 



Balthazar were taken, March 24, in open places and from thickets 

 near the sea, from herbage ; others were found at the same place 

 in April, and one was captured on the Lake Antoine estate. 



This is another Colombian form with a distribution from 

 Northern Brazil to Southern Florida and the coast of Texas. It is 

 found in all the Greater Antilles and Trinidad. Two specimens 

 from Para, in my collectiou, vary but little from the type as we 

 find it in Mexico and Cuba. The specimens from Grenada vary 

 much in size, just as they do in San Domingo, Cuba, and Mexico. 

 The males are sometimes only about half the size of the females. 



2. Xezara viridula (Linn.). 



Cimex viridulus, Linn. Syst. Nat. ed. 10, p. 444. 



This species is now known from the warm parts of all four of the 

 continents. In the United States it inhabits the littoral plain 

 from Virginia to Florida and Louisiana. It is found iu all the 

 large West India islands, including Trinidad. 



In Grenada the specimens were found at Balthazar, April 2, 

 on weeds and various kinds of herbage. On the Mount Gay 

 estate it was taken, August 20 to 25, on herbage in open places. 



Edessa, Fabr. 

 1. Edessa bifida, Say. 



Pentatoma bifida, Say, Insects of Louisiana, p. 7 ; Edessa cornuta, 

 Burm., and E. cornuta, Guerin ; also E. albirenis, H.-Schf. Wanz. 

 Ins. vii. p. 127, t. ccxlix. fig. 774. 



Types of all the references above given have been identified for 

 me by Dr. Stal and others, and there is no reason for keeping 

 them apart as is done in the Catal. Gen. des Hemipt. par MM. 

 Lethierry et Severin, pp. 183, 189. 



This species is distributed from Northern Brazil and Colombia 

 through Central America and Mexico into the southern United 

 States and the Antilles. It is variable to a marked degree in the 

 distribution, depth, and coarseness of the punctures, the size and 

 length of body, and the convexity of the pronotum. The scutellum is 

 occasionally blunter than in the average, and the pronotum sometimes 

 shows traces of wrinkles on the convex dorsum. Mr. Distant's figure 

 of E. cornuta, Burm., Biol. Centr.-Am., Hem.-Heter. pi. 9. fig. 22, 

 well represents the E. bifida, Say, as we find it in Louisiana, Florida, 

 Cuba, and Grenada. Besides this, a pair of types from the Mexican 

 series separated by Mr. Distant in working up his material for the 

 'Biologia ' are before me at this moment, and they are precisely like 

 my specimens from the United States and the Antilles. In examin- 

 ing a series of somewhat more than a hundred specimens of both 

 sexes, from near Samana, San Domingo, I was surprised to find 

 abrupt differences in the length of the anterior fork of the sternum 

 of the male, and in the depth of excavation and angularity of the 

 sides of the genital segment. The female is usually a broader, larger, 



