194 The Ohio Journal of Scie?ice [Vol. XVIII, No. 6, 



ance, and this resemblance is enhanced by its actions. If a 

 number of parasites be bred together in a glass vial, they m.ay 

 be seen gathered in pairs, standing sub-erect on their four hind 

 legs, face to face, stroking one another, licking each other's 

 mouth, soliciting food. Now the ants that attend the hoppers 

 themselves behave in a similar fashion, and it is most probable 

 that they actually feed the Paranteon, which unless it were on 

 friendly terms with the ants, could never approach the hoppers 

 to lay its eggs in these. * * * Further, it would be interest- 

 ing to note what happens to the full-grown larva of the parasite, 

 which must emerge from its sac amongst a swarm of carnivorous 

 ants that are always prepared to kill and carry ofi any weaker 

 insect that falls in their way. Most probably not only are the 

 larvae not harmed by the ants, but they may be carried down by 

 them to their underground nest, and pupate therein. " 



There are several records of dryinids being collected in ants' 

 nests. The following species have been recorded as associated 

 with ants: Dicondyhis distindits (Kief.), England, in colony 

 of Myrmica; Dicondyhis striatus (Kief.) Austria and England, 

 in nest of Formica fusca; and Gonatopus Myrmecophilus (Kief.), 

 Luxemburg and England, with Formica ruhibarhis. 



Apterous species are often collected by turning over stones, 

 and are very rarely reported as being taken in the net, although 

 this may be due to their close resemblance to ants. 



Both sexes feed readily on water sweetened with sugar. 

 Perkins (1905) noticed individuals of Echthrodelphax feeding 

 on the honey-dew secreted by their host, a certain fulgorid. 

 They may attack and devour their host, for the same author 

 says that "under unnatural conditions, such as in the confine- 

 ment of a small jar or glass tube, and probably under pressure of 

 hunger, the hoppers are frequently killed outright, and to some 

 extent devoured." In the act of oviposition, the female 

 invariably works her mandibles on the cuticle of the hopper, 

 and sometimes produces a wound which in some cases so weakens 

 the hopper as to cause its death. Again no sign of a wound is 

 noticed after oviposition. 



The longevity of the adults varies with the sexes, the female 

 invariably being much the longer lived. In fact, the males 

 live often but a few^ days, often only for a day. Frequently, 

 according to Perkins (1905), the m.ale dies after copulation. 

 The female may live as long as seventeen days in captivity, 

 and undoubtedly much longer under natural conditions. 



