1894.] ON THE HEMIPTERA-HETEROPTERA OF GRENADA. 167 



2. On the Hemiptera-Heteroptera of the Island of Grenada, 

 West Indies. By P. R. Uhler. 1 



[Eeceived February 9, 1894.] 



[Two papers were recently communicated to the Society on 

 Hemiptera from the island of St. Vincent (see P. Z. S. 1893, p. 705, 

 & 1894, p. 156) ; in these it was mentioned that Prof. Uhler was 

 engaged in working out the collections from Grenada sent to him 

 by the Committee. I have now the pleasure of offering to the 

 Society the memoir the reception of which we were then looking 

 forward to. The collections studied were made by Mr. and 

 Mrs. Herbert H. Smith under the auspices of Mr. P. D. Godman, 

 P.P.S., in the manner that was mentioned when we were dealing 

 with the St. Vincent insects. — D. S.] 



The collection of Heteroptera here enumerated was brought 

 together in the island of Grenada by Messrs. Herbert H. Smith 

 and Henry E. Summers during a part of the year 1891. It re- 

 presents the results of a careful search over the principal parts of 

 the island during a period of about eight months, extending from 

 February to November. The total number of species brought 

 back is about 166, excluding varieties and some immature forms 

 which could not be identified. 



Although not exhaustive, the collection affords an excellent 

 basis of comparison with the faunas of other islands and countries 

 adjacent to the centre of America ; it also supplies some hints as 

 to the sources from which the fauna has been derived. 



Prom a review of the species here enumerated it appears evident 

 that the Hemipterous fauna is Central-American. It is largely 

 composed of forms which belong to the borders of the Tropics, 

 rather than of such distinctly tropical ones as inhabit the South- 

 American continent. The percentage of small forms is remarkably 

 large. The family most extensively represented is the LvGiEiDiE, of 

 which 28 species are present, and these are correspondingly 

 numerous in individuals. Of these species nine-tenths are found 

 in Cuba and the other Greater Antilles, and about the same 

 number also occur in Mexico and Central America. 



Next in abundance appear the Pentatomoidea, with 24 species. 

 Most of these, likewise, are found in the Antilles, Mexico, and 

 Central America, and form part of the fauna which ranges from 

 the southern United States to the borders of the equatorial region. 

 The most conspicuous form is Edessa rugulosa, which is closely 

 related to a species of Cuba and San Domingo and to another 

 from Mexico. Banasa lenticularis is very closely related to another 

 species which also occurs in the countries just mentioned. 



The Redtjvioidea come next, but the 24 species of this family 

 are not generally abundant in individuals. About eight-tenths of 



1 Communicated by D. Sharp, F.R.S., F.Z.S., on behalf of the Committee 

 for investigating the Flora and Fauna of the West India Islands. 



12* 



