TO 



she must have several eggs ready for hiving. While in the air 

 with her vietini, her alxlomeii could be seen curved towards it ; 

 she is provided with a sharp corneous ovipositor, with which 

 she either pierces the hopper's body or inserts her vvvy small 

 ea'ff (not seen) under a hodv fold. At anv rate the liberated 

 homopteron seems mdiui't and usually hops away. If the 

 young- hopper is too large, the fly is sometimes apprised of the 

 fact by being hurled back by the insect's vigorous leap. 



In catching recently pipunculated hoppers, I found it best 

 to sit down l)efore a sort of clearing among cane plants, shake 

 down a numl)er of hoppers and place leaves bearing many 

 young, in suitalde ])ositions and with a white cloth or handker- 

 chief held beneath her, carefully but quickly follow a burdened 

 Pipunculus. As soon as the hopper is lilierated, it falls on 

 the cloth and a wide-mouthed vial is clapped over it. I was 

 unsuccessful in many attempts but managed thus to secure 6-7 

 parasitized hoppers in about an hour. 



The life of the young Pipimculus is rather long, inasmuch 

 as it is not ready to leave its host's body until some time after 

 the latter has become mature. Then a male hopper thus 

 parasitized develops a much swollen abdomen, but I was not 

 able for certainty to distinguish similarly affected females. 

 The latter often have the body normally swollen with eggs, 

 but when pipunculated, these eggs are consumed by the grow- 

 ing parasite. In its early stages, the maggot is rather soft and 

 delicate, in later development it is decidedly tough ; then it is 

 tinged with orange, is wrinkled and active and short-obloiig in 

 shape. 



On April 12th, I captured a few small hoppers which had 

 been caught up and dropped by Pipunculus. Some of these 

 were successfully ti-ansported to the Experiment Station in 

 Honolulu, Avhcre tivc of them matured in the iirst ]>art of 

 May. By May 14th one male was seen to have a s\vollen 

 a])domen and thus to be certainly parasitized, but unfortunately 

 it died shortly thereafter. The last of these hoppers to die, a 

 short-winged female, did so on May 20th, and her abdomen 



