The following species are described : -Signiphora flavopalliata occidentalis, How., from Chrysomphalus aurantü citrinus; S . thoreavini, sp. n., from Aspidiotus hederae; Neosigniphora elongate, sp. n., from a Coccid on Muhlenbergia; -Aneristus oculatipennis, sp. n., from Saissetia oleae; Nebaocharis hemipterus, gen. et sp. n. ; Epanusia albiclava, sp. n. ; Epidinocarsis subalbicornis, sp. n., associated with mealy bugs on grape; Formicencyrtus thoreavini, sp. n., on Dactylopius (Coccus) confusus; Zaommoencyrtus submicans, gen. et sp. n., on Nyctobates pennsylwnica; Ceraptroceroideus dnctipes, sp. n., from Aspidiotus helianthi on Erigeron camódense', Bereomtttt baleen, Howard, vat. gemma, var. n., from larvae of Euxoa and Sidemia (Hadena) devastatrix; B. bakeri, var. arizonensis, var. n., from ohorizagrotis sp.
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