162 Psyche [October 



was seen in this locality in a nest of the same species of ant, but 

 escaped. This cricket was described by Wasmann from examples 

 sent to him from India by P. J. Assmuth, and from Para, Brazil, 

 by E. A. Goldi. In both localities the host ant was Prenolepis 

 longicornis. Wasmann's Brazilian specimens were lighter in color 

 than those from India and the light transverse abdominal band 

 was indistinct. The Haytian example is more like the Indian 

 form, being dark brown in color with a distinct light yellowish 

 band transversely across the first segment of the abdomen. 



This cricket and the beetle, Coluocera maderoe Woll., are the 

 characteristic guests of Prenolepis longicornis. The host ant is 

 one of the most widely distributed of all the Formicidse. It has 

 been recorded from practically all tropical and subtropical regions, 

 and occurs occasionally even in the temperate parts of the world, 

 where it has been introduced through commerce. Nests are of 

 common occurrence on shipboard. It is evident from the varied 

 localities from which the two inquilines have been recorded, that 

 they are capable of adapting themselves to the different environ- 

 ments in which the host nests, and that they are extending their 

 range, following the ant in its wanderings. 



HEMIPTERA. 



Family Cercopid.e. 



Two nymphs of an undetermined Cercopid were found with 

 large colonies of Aphoenog aster relicta subsp. epinotalis Wheeler & 

 Mann at Manneville. The body of this Hemipteron is very much 

 flattened dorsoventrally, so that it has the appearance of a small 

 cockroach, which it resembles also in its manner of running. 



Family Membracid.e. 



A single immature individual of an undetermined Membracid 

 was found living in a nest of Macromischa sallei subsp. haytiana 

 Wheeler & Mann at Furcy. Enslin has recently observed (Zeits. 

 f. wiss. Insektenbiol. Vol. VII, pp. 19-21) that the European ant 

 Formica cinerea F. often carries into its nests nymphs and adults 

 of Gargara genista' F., a common European Homopteron. Those 

 which he observed soon died, probably because of lack of food in 

 the subterranean nests of the ants. The nest of Macromischa, 



