6KT. 14 THE CHALCID-FLY GENUS CALLIMOME HUBER O 



parasitic stage, is a matter of considerable speculation. Gahan* in a 

 recent paper discusses the development of phytophagy in Chalcidoids 

 and seems to have arrived at the conclusion that phytophagy is proba- 

 bly a recent development. 



Two of the apparently phytophagous species are found in North 

 America. Callimome druparum (Boheman), also found in Europe, 

 is the only one in North America that is definitely known to be phy- 

 tophagous. The larvae of this species feed upon the seeds of apple 

 (Pyrus) and of the mountain ash (Sorharia) . Callimome amelanchieris 

 (Cushman) was reared from seeds of Amelanchier canadensis (Lin- 

 naeus) Medicus. Cushman^ thinks it is doubtfully phytophagous and 

 suggests that it may sometimes be parasitic on a species of Megastigmus. 



Callimome advenum Osten Sacken is one of the most unique of all 

 in its host relationships. It seems to be a parasite of a Cynipid gall 

 maker as well as three different species of Dipterous gall makers; it 

 was also reared from the seeds of Amelanchier canadensis in the same 

 lot of material as Callimome amelanchieris (Cushman). Whether it 

 is truly phytophagous can not be stated at this time. 



A species apparently overlooked until the present time and which 

 may be phytophagous, is Callimome thompsoni, (Fyles) which has 

 been reported as ovipositing in plums. 



HOSTS OF THE SPECIES OF CALLIMOME 



Dalla Torre's Catalogus Hymenopterorum (volumes 2 and 5) has 

 served as a guide in the preparation of this list. As will be noted in 

 the following pages, the hosts have been listed under five headings, 

 namely, Hymenoptera, Diptera, Homoptera, Phytophagous, and Mis- 

 cellaneous. 



HYMENOPTERA 



Host Parasite 



Amphibolips acuminata Ashmead Callimome melanocerae Ashmead. 



Amphiholips championi (Cameron) Ash- 

 mead Callimome mexicanum (Ashmead) . 



Amphiholips cinerea Ashmead Callimome coeruleum Ashmead. 



Amphibolips citriformis (Ashmead) Dalla 



Torre Callimome melanocerae Ashmead. 



A mphibolips coccinea (Osten Sacken) Ash- 

 mead Callimome coccincum Huber; melano- 

 cerae Ashmead; iubicola Osten 

 Sacken. 

 Amphibolips conflnentis (Harris) Cresson. Callimome coccineum Huber; raccma- 



reae Ashmead. 



Amphibolips fuliginosa Ashvae&d Callimo^ne racemarcae Ashmead; ro- 



busium Huber. 

 A mpliibolips gainesi Bassett Callimome racemarcae Ashmead. 



* Qahan, A. B. List of Phytophagous Chalcidoidea with descriptions of two new species, Proc. Ent. Sec. 

 Wash., vol. 24., No. 2, 1822. 

 'Cushman, R. A. The Apple Seed Chalcid, Journ. A?r. Res,, vol. 7., No. 11, V. S. D. A., 1916. 



