480 bulletin: museum of comparative zoology. 



Solenopsis virgula Prenolepis antillana 

 Atta octospinosa " steinheili 



" borinquenensis " minuia 



Cyphomyrmex minutus Iridomyrmex pruinosus 

 Cryptocerus varians " analis 



Strumigenys rogeri Dorymyrmex pyr amicus 



" alberti " niger 



Epitritus emmae Camponotus santosi 

 Prenolepis fulva " inaequalis 



fumata ramulorum 



vividula " planatus 



A considerable number of these occur also in the southern United 

 States, especially in Florida, and in the Bahamas. Many of them 

 may be very ancient inhabitants of Cuba. 



The tropicopolitan species are seven in number, or 9% of the Cuban 

 ant-fauna, namely: — 



Monomorium pharaonis Pheidole megacephala 



fioricola Tapinoma melanocephalum 



Cardiocondyla emery i Prenolepis longicornis 

 Tetramorium guineense 



The only strictly indigenous species which behaves as a dominant 

 insect, at least throughout the lowlands of the island, is Atta insularis; 

 the others are rare or local and, being nearly all very small, timid 

 ants, have probably suffered considerably from the inroads of such 

 dominant and predatory forms as Pheidole megacephala, Solenopsis 

 geminata, Prenolepis longicornis, Dorymyrmex niger, Iridomyrmex 

 pruinosus, and Tapinoma melanocephalum. Most or all of these 

 have probably been introduced into Cuba within comparatively 

 recent times. 



A more detailed discussion of the bearing of the composition of 

 the Cuban ant-fauna on the general distribution of these and other 

 insects in the West Indies and on the geological history of these 

 islands, cannot be profitably undertaken till the fauna of Haiti and 

 San Domingo has been studied. A knowledge of this fauna and of 

 some of the Lesser Antilles from which I have recently received 

 specimens, together with the data I have already published on the 

 ant-faunas of Porto Rico, Jamaica, and the Bahamas, may be 

 expected to aid us in the solution of some of the problems of West 

 Indian zoogeography. 



