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IV. On Plcurostict LameUicorns from Grenada and St. 

 Vincent {West Indies). By Gilbert J. Arrow, F.E.S. 



[Read March 7th, 1900.] 



The Beetles here described form a small part of the 

 collection made by Mr. H. H. Smith in 1889, 1890 and 1891. 

 The families represented are Melolonthidie, Rutelidse and 

 Dynastidge, no member of the Cetoniidse having been found. 

 I am not aware that any species of these ftimilies have so 

 far been recorded from Grenada or St. Vincent, so that the 

 present collection, although including only a small number 

 of species, is not Avithout interest. The total number of 

 species discovered is seventeen, of which eight are liere 

 described as new, the rest being, with one exception (a 

 doubtful species of Stratmgtbs), more or less common Central 

 American insects. These are widely-distributed forms 

 which may yet prove all to occur upon the more adjacent 

 continent of South America. 



It is remarkable that of the whole seventeen species, 

 although considerable numbers of the majority were found, 

 only two were discovered in both the islands, showing a 

 difference in the Lamellicorn fauna which I am not aware 

 has been noticed in any other group. As Mr. Smith seems 

 to have collected in both islands at all seasons of the year, 

 this, difference can hardly be due to any accidental circum- 

 stance. The island of St. Vincent has yielded the whole 

 of the Melolonthidffi and Rutelidse, with the exception of 

 a single specimen representing a new species, while 

 Grenada shoAvs a similar preponderance in the Dynastidse. 



The whole of the insects here referred to belong to 

 genera well-known from the American mainland, two of 

 which have not. been previously recorded from the West 

 Indies. 



MELOLONTHID.E. 



Lachnosterna patens, sp. n. 



Crassa, obscure rnfa vel nigro-rufa, pruinosa ; capite lato, grosse 

 punctato, clypeo crebrius punctato, nitido, bilobato, margine retiexo ; 

 prothorace qiiaiii elytra ad humeros angiistiore, irregulariter grosse 



TRANS. ENT. SOC. LOND. 1900.— PART I. ( APRIL) 



