 | A Proposed Classification of the Fossorial Hymenoptera of North America
William J Fox (1894) Proceedings of The Academy of Natural Sciences of Philadelphia 46: 292-307 |
 | Classification of the entomophilous wasps, or the superfamily Sphegoidea
W H Ashmead (1899) Canadian Entomologist 31: 145-155 |
 | Le sous-genre Psen Mimumesa Malloch (Hym. Sphec.) (avec une liste des Psenini capturés aux Pays-Bas)
J P V Lith (1949) Tijdschrift Voor Entomologie 91: 135-148 |
 | Sphecidae and Pompilidae (Hymenoptera) collected by Mr. K. M. Guichard in West Africa and Ethiopia, 1941-1948
G Arnold (1951) Bull. Brit. Mus. (Nat. Hist.), London Ent. 2: 95-183 |
 | Contribution to the knowledge of Indo-Australian, South Pacific and East Asiatic Psenini. Genus Psen Latreille (Hymenoptera, Sphecidae)
J P V Lith (1968) Tijdschrift Voor Entomologie 111: 89-135 |
 | Descriptions of some Indo-Australian Psenulus and revision of the group of Psenulus pulcherrimus (Bingham) (Hymenoptera, Sphecidae, Psenini)
J P V Lith (1969) Tijdschrift Voor Entomologie 112: 197-212 |
 | Contribution to the knowledge of Oriental Psenulus (Hymenoptera, Sphecidae, Psenini)
J P V Lith (1972) Tijdschrift Voor Entomologie 115: 153-203 |
 | Psenini from Nepal (Hymenoptera, Sphecidae)
J P V Lith (1973) Tijdschrift Voor Entomologie 116: 123-142 |
 | Revision of the Psenini of the Ethiopian Region, including Malagasy (Hymenoptera, Sphecidae, Pemphredoninae)
J P V Lith (1974) Tijdschrift Voor Entomologie 117: 39-101 |
 | Neotropical species of Psen and Pseneo (Hymenoptera, Sphecidae, Psenini)
J P V Lith (1975) Tijdschrift Voor Entomologie 118: 1-41 |
 | New species and records of Indo-Australian Psenini (Hymenoptera, Sphecidae, Pemphredoninae)
J P V Lith (1976) Tijdschrift Voor Entomologie 119: 79-122 |
 | Psenini from Sri Lanka (Hymenoptera, Sphecidae, Pemphredoninae)
J P V Lith (1978) Tijdschrift Voor Entomologie 121: 1-12 |
 | Sphecid Wasps Of The World - Errors And Omissions (Hymenoptera, Sphecidae)
A S Menke and R M Bohart (1979) Proceedings of The Entomological Society of Washington 81: 111-124 |
 | The New World genus Pluto (Hymenoptera, Sphecidae, Psenini)
J P V Lith (1979) Tijdschrift Voor Entomologie 122: 127-239 |
 | An exploratory analysis of cladistic relationships within the superfamily Apoidea, with special reference to sphecid wasps (Hymenoptera)
B A Alexander (1992) Journal of Hymenoptera Research 1: 25-61 |
 | Silk glands in adult sphecid wasps (Hymenoptera, Sphecidae, Pemphredoninae)
G A R Melo (1997) Journal of Hymenoptera Research 6: 01-09 |
 | Family-group names in Sphecidae (Hymenoptera: Apoidea)
A S Menke (1997) Journal of Hymenoptera Research 6: 243-255 |
 | A review of New Guinea Ochleroptera Holmberg 1903 (Hymenoptera: Sphecidae)
Wojciech J Pulawski (1997) Journal of Hymenoptera Research 6: 256-262 |
 | Sexual dimorphism of wasp antennal structure in relation to parasitic and non-parasitic behavior (Hymenoptera: Sphecidae)
W T Wcislo (1998) Journal of Hymenoptera Research 7: 178-181 |
 | The Co-Radiations of Pollinating Insects and Angiosperms in the Cretaceous
David Grimaldi (1999) Annals of the Missouri Botanical Garden 86: 373-406 |
 | A Revision of Entomosericus Dahlbom 1845 (Hymenoptera: Apoidea: Sphecidae ) with Description of a New Species
Christian Schmid-Egger (2000) Journal of Hymenoptera Research 9: 352-362 |
 | Revision of the world genera of tribe Stigmini (Hymenoptera: Apoidea: Crabronidae: Pemphredoninae), Part 2. Species of Incastigmus Finnamore
(2002) Journal of Hymenoptera Research 11: 12-71 |
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