wheeler: the ants of cuba. 499 



las Vegas, near Havana, "living associated with the Cuban turtle- 

 back scale (Lecanium sp.)." 



56. Dorymyrmex pyramicus Roger var. niger Pergande. 

 Proc. Cal. acad. sci., 1895, ser. 2, 5, p. 871 § . 



It is strange that this ant is not mentioned by Gundlach since it is 

 very common in Cuba, especially in the cane lands in the southern 

 portions of the Provinces of Havana, Matanzas, and Santa Clara. 

 I have seen it at Cogimar, Havana, Aguada de Pasajeros, Bolondron, 

 and in many places in the Cienaga de Zapata, and have examined a 

 number of specimens from Cayamas (E. A. Schwarz). 



CAMPONOTINAE. 



57. Plagiolepis flavidula Roger. 

 Berl. entom. zeitschr., 1863, 7, p. 162 £ . 



Concerning this ant Gundlach says : — " Roger found this species 

 among those of my collection, and thus I do not know where I collected 

 it. I do not possess it now." This accounts for its absence from his 

 collection. The species is very puzzling, because it has never been 

 seen since Roger described it, because the genus Plagiolepis is peculiar 

 to the Old World, and because the brief description will apply to 

 Tapinoma Morale. That Roger did occasionally confound the 

 Dolichoderinae and smaller Camponotinae is shown by the fact that 

 he originally described Dorymyrmex pyramicus as Prenolepis pyramica. 



58. Prenolepis (Nylanderia) longicornis (Latreille). 



Formica longicornis Latr., Hist. nat. fourmis, 1802, p. 113 £ . 



Gundlach gives no precise locality for this widely distributed 

 "tramp" species. He says: — "I have observed it in various locali- 

 ties in this island. It is very common and known under the name 

 "hormiga loca" [crazy ant], because it runs very rapidly, changing 

 its direction every moment." His collection contains two female, 

 one male, and five worker specimens (no. 226). I found the species 



