Literature

Authors	Year	Title
Cushman, RA	1931	Three new Braconidae parasitic on bark beetles.
del Guerico, G	1931	Puntevuoli piu importanti dell'olivo.
Hill, CC, Smith, HD	1931	Heterospilus cephi Rohwer, a parasite of the European wheat sawfly Cephus pygmaeus (L.).
Leonard, MD, Mills, AS	1931	A preliminary report on the lima bean pod-borer and other legume pod-borers in Porto Rico.
Norton, F	1931	The Ichneumonidae of Glamorgan.
Wilkinson, DS	1931	Braconidae: notes and new species.
Wilkinson, DS	1931	Five new species of Spathius (Hym. Bracon.).
Wilkinson, DS	1931	On the Indo-Australian and Ethiopian species of the Braconid genus Spathius (Hymenoptera).

Key to the genera of Doryctinae of the world