368 Bulletin 265. 



of de Stefani on a related form infesting the kernel of the Pistachio 

 nut^ 



In general, the vegetable-feeding habit seems to be contined to those 

 Chalcis-flies more nearly related to the Agaonidae or Fig-insects. The 

 systematic position of these forms is shown in the following table: 



suPERFAMiLY CHALCIDOIDEA 



Family AGAONID^, Fig-insects; the larvae infest the seeds of the fig. 



Family TORYMID^. 



Subfamily IDARNIN^, associated with the fig-insects either as parasites or 



inquilines. 

 Subfamily TORYMIN^. 



Syntomaspis druparum Boh., seeds of apple and Sorbus. 

 Subfamily MEGASTIGMIN^. 



Megastigmus piniis Parf., seeds of pine. Zoologist, XV., p. 5543. 1857. 

 Megastigmus spermotrophus Wachtl, seeds of Douglas Fir {Pseudotsuga 



douglasii). 

 M egastigmivs aculeatus Swed., seeds of rose. 

 Megastigmus pictus Forst., seeds of rose. Wachtl, Wien. Ent. Zeit., III., 



p. 214. 1884. 

 Megastigmus brevicaudis Ratz., seeds of Sorbus. 

 Megastigmus ballesterii Rond. (Trogocarpus), seeds of Pistachio. (Probably 



equals AI. pistacics Walk.) de Stefani, 1. c. 

 Megastigm,us strobilobius Ratz., seeds of Abies pectinata. Judeich & Nitsche, 



Lehrbuch Forstins., pp. 704, 1339. 1893. 

 Megastigmus sp., from seed-capsule of Nine-bark (Physocarpus opulif alius). 



Riley, Proc. Ent. Soc. Wash., II., p. 362. 1893. 

 Megastigmus, several undescribed species from seeds of conifers. Riley. 1. c. 



p. 360. 



Family EURYTOMID^. 

 Tribe ISOSOMINI. 



Isosoma, numerous species, either producing galls on the stems of grasses or 



living in the central cavity of the culm. 

 Isosoma orchidearum, Westw., stems and leaves of orchids. Trans. Ent. Soc. 



Lond., p. 323. 1882. 

 Isomorpha, produce galls on grasses. Howard, Tech. Bull. Bur. Ent., 2. 



p. 20. 1896. 

 Evoxysoma vitis Saund., seeds of grape. * 



Tribe EURYTOMINI. 



Prodecatoma phytophaga Crosby, seeds of Virginia Creeper. 

 Eurytom.acharis eragrostidis How., stems of Eragrostis poaeoides. 

 Eurytontacharis triodiae How., stems of Triodia cuprea, Howard, 1. c, p. 21. 

 Decatomidea cooki How., seeds of grapes. Howard, 1. c, p. 23. 

 Eurytoma schreineri Schr., seeds of plum. Zeitschr. wiss. Insbiol., IV.. p. 26. 



1908. 



* L'insetto dei Frutti del Pistacchio e mode di limitame i danni, Palermo, 1908. 



