162 MISCELLANEOUS FOREST INSECTS. 



BIBLIOGRAPHY. 



Megastigmus spermotrophus Waclitl, 1893, p. 26, pi. 1. 

 Dalla Torre, 1898, p. 287. 

 MacDougall, 1906, pp. 52-65, 2 pie. 

 Crosby, 1909, pp. 379-380, fige. 85-89. 



SUMMARY. 



Up to the present time there are seven species of chalcidid flies 

 which are known to attack the seeds of the following forest trees: 



ISorbus scandica. 

 S orbits aucuparia. 

 Sorbus latifolia? 



Amabilis fir Abies amabilis. 



White fir Abies concolor. 



Great silver fir Abies grandis. 



Shasta fir Abies magnifica. 



Bristlecone fir Abies venusta. 



Noble fir Abies nobilis. 



I Abies excelsa. 

 Abies pectinata. 

 Abies mariesii. 



Hooker hemlock Tsuga mertensiana hookeriana. 



Unknown Tsuga Tsuga sp. (?) 



Douglas fir Pseudotsuga taxifolia. 



Of these seven species the eggs of two arc known, the larvae of four, 

 the pupae of two, the oviposition habit of one, and the emergence dates 

 of three. The only species of which the life history has been com- 

 pletely traced is that of the apple-seed chalcidid (Syntomaspis 

 drwparum) which is also known to attack the seeds of mountain ash. 



BIBLIOGRAPHY. 



The following bibliography is believed to be reasonably complete 

 for all the literature received in Washington up to November 1, 1912, 

 dealing with chalcidid flies which are phytophagous within the 

 seeds of forest trees. 



1803. Berger, Francais.- — Extrait des observations sur un ver qui se trouve dans 

 I'interieure des p^pins de la pomme d'api. -^Bull. Sci. Soc. Philomatique 

 Paris, Ann. 12, p. 141. 



1833. BoHEMAN, CarlH. — SkandinaviskaPteroraaliner. <Vetensk. Acad. Handl., 

 pp. 329-380. 



1879. Cameron, P. — On some new or little known British Hymenoptera. <Tran!'. 

 Ent. Soc. Lond., pp. 107-119. 



1912. Crawford, J. C. — Descriptions of new Hymenoptera No. 5. <Proc. U. S. 

 Nat. Mu.=., vol. 43, pp. 163-188. 

 Change of the name Torymidsc to Collimanidaj. 



