Kröber O., 1912: Thereviden, Omphraliden (Dipt.). H. Sauter’s Formosa-Ausbeute. 3 pp. 

 Kröber O., 1913: 27. Omphralidae (Scenopinidae). 12 pp. 

 Kröber O., 1913: Die Omphraliden. Eine monographische Studie. 41 pp. 

 Kröber O., 1913: Flügelabnormitäten der Dipterenfamilien Therevidae und Omphralidae. 5 pp. 

 Kröber O., 1913: H. Saunter’s Formosa-Ausbeute. Thereviden II. Conopiden (Dipt.). 8 pp. 

 Kröber O., 1914: Beiträge zur Kenntnis der Thereviden und Omphraliden. 46 pp. 

 Kröber O., 1914: Das Genus Stylogaster Macqu (Dipt.). 16 pp. 

 Kröber O., 1914: Die Gattung Brachyglossum Rond. (Dipt.). 9 pp. 

 Kröber O., 1927: Die Conopiden der Philippinen. 15 pp. 

 Kröber O., 1929: 1. Teil. Diptera. Tabanidae. 12 pp. 

 Kröber O., 1929: Indo-australische Chrysopini. 71 pp. 

 Kröber O., 1929: Thereviden (Diptera) von den Philippinen aus Japan und Formosa. 11 pp. 

 Krogerus R., 1919: Lakttagelser rörande skalbaggsfaunan i ekstubbar och döda ekstammar i sydvästra Finland. 3 pp. 

 Krogerus R., 1927: Parasitsteklar fran Karelska näsets dynomraden. 5 pp. 

 Krogerus R., 1937: Zwei neue Diptera Polyneura aus Finnland. 3 pp. 

 Krogh A., : Ethyl urethane as a narcotic for aquatic animals. 6 pp. (in English). 

 Kroiss J., Schmitt T., Strohm E., 2009: Low level of cuticular hydrocarbons in a parasitoid of a solitary digger wasp and its potential for concealment. 8 pp. Entomological Science 12(1): 9-16.

 Król, Bakke, 1986: Comparison of trap trees and pheromone loaded pipe traps in attracting Ips typographus L. (Col., Scolytidae). 9 pp. [SCO 198] Polskie Pismo Entomologiczne 56:437-445

 Krombach , 1916: Einige neue Tagfalterformen. 2 pp. 

 Krombein K. V., (ed.), 1958: Hymenoptera of America north of Mexico. Synoptic catalogue. 1st supplement. 305 pp.  Discount 20%!

 Krombein K. V., 1939: Descriptions and records of new wasps from New York state (Hym.: Sphecidae). 2 pp. 

 Krombein K. V., 1949: Two new gynandromorphs, with a list of previously recorded sexual aberrations in the scolioid wasps. 7 pp. 

 Krombein K. V., 1950: A new Nitela from California (Hymenoptera, Sphecidae). 4 pp. 

 Krombein K. V., 1950: Synonymical notes on North American Sphecoid wasps: III. (Hymenoptera). 6 pp. 

 Krombein K. V., 1950: Taxonomic notes on the wasps of the subgenus Pseneo Malloch (Hymenoptera, Sphecidae). 11 pp. 

 Krombein K. V., 1950: The Aculeate Hymenoptera of Micronesia. II. Colletidae, Halictidae, Megachilidae and Apidae. 42 pp. 

 Krombein K. V., 1950: The North American species of Bembecinus (Hymenoptera, Sphecidae, Stizini). 15 pp. 

 Krombein K. V., 1951: Additional notes on the bees of the Solomon Islands (Hymenoptera: Apoidea). 19 pp. 

 Krombein K. V., 1953: A note on the nesting behavior and prey of Agenioideus (Agenioideus) humilis (Cresson) (Hymenoptera, Pompilidae). 3 pp. 

 Krombein K. V., 1953: A note on the nesting habits of Megachile texana Cresson (Hymenoptera, Megachilidae). 2 pp. 

 Krombein K. V., 1954: A new Perisierola from California (Hymenoptera: Bethylidae). 2 pp. 

 Krombein K. V., 1954: Taxonomic notes on some wasps from Florida with descriptions of new species and subspecies (Hymenoptera, Scolioidea and Sphecoidea). 29 pp. 

 Krombein K. V., 1954: The indentity of Brachycistis nocticola Bradley (Hymenoptera, Tiphidae). 2 pp. 

 Krombein K. V., 1955: Miscellaneous prey records of solitary wasps. I. (Hymenoptera: Aculeata). 5 pp. 

 Krombein K. V., 1955: Synonymical notes on Norht American Sphecoid wasps. IV. Some synonymy in Oxybelus and description of a new subspecies (Hymenoptera). 5 pp. 

 Krombein K. V., 1955: The status of Pemphredon provancheri Dalla Torre (Hymenoptera, Sphecidae). 1 pp. 

 Krombein K. V., 1956: Miscellaneous prey records of solitary wasps. II. (Hymenoptera: Aculeata). 3 pp. 

 Krombein K. V., 1958: Additions durign 1956 and 1957 to the wasp fauna of Lost River State Park, West Virginia, with biological notes and descriptions of new species (Hymenoptera, Aculeata). 16 pp. 

 Krombein K. V., 1959: A new genus and species of Psenini from the southwestern deserts (Hymenoptera, Sphecidae). 4 pp. 

 Krombein K. V., 1959: Biological notes on Prochelostoma philadelphi (Robertson) (Hymenoptera, Megachilidae). 2 pp. 

 Krombein K. V., 1959: Natural history of Plummers Island, Maryland. XII. A biological note on Trypoxylon richardsi Sandhouse. 2 pp. 

 Krombein K. V., 1960: Additions to the Amiseginae and Adelphinae (Hymenoptera, Chrysididae). 14 pp. 

 Krombein K. V., 1960: Life history and behavioral studies of solitary wood- and ground-nesting wasps and bees in southeastern Arizona. 2 pp. 

 Krombein K. V., 1961: Miscellaneous prey records of solitary wasps. IV. (Hymenoptera: Aculeata). 4 pp. 

 Krombein K. V., 1962: A new species of Campsomeris from the Solomon Islands (Hymenoptera, Scoliidae). 3 pp. 

 Krombein K. V., 1962: Natural history of plummers Island, Maryland. XVI. Biological notes on Chaetodactylus krombeini Baker, a parasitic mite of the megachilid bee, Osmia (Osmia) lignaria Say (Acarina: Chaetodactylidae). 14 pp. 

 Krombein K. V., 1963. Biological notes on Cerceris blakei Cresson (Hymenoptera: Sphecidae). 8 pp. 

 Krombein K. V., 1963: A new Chrysura from Plummers Island, Maryland (Hymenoptera, Chrysididae). 4 pp. 

 Krombein K. V., 1963: A new Nitelopterus from Wyoming and Washington (Hymenoptera, Sphecidae). 3 pp. 

 Krombein K. V., 1963: A new Tachysphex from Southeastern United States (Hymenotpear, Sphecidae). 5 pp.