Results 121 to 130 of about 281 (148)

Spray Aiming in Bombardier Beetles: Jet Deflection by the Coanda Effect

Science, 1982
Bombardier beetles of the carabid subfamily Paussinae have a pair of flanges, diagnostic for the group, that project outward from the sides of the body. Behind each flange is a gland opening, from which the beetles discharge a hot, quinone-containing secretion when disturbed.
T, Eisner, D J, Aneshansley
openaire   +2 more sources

Morpho-functional and behavioral studies on the flanged bombardier beetles (Carabidae: Paussinae)

, 2013
Paussinae, known as flanged bombardier beetles, are a monophyletic subfamily that includes about 750 described species mainly distributed in tropical regions. They share a unique type of larva with a peculiar terminal disk at the end of an up-curved abdomen, and an explosive defensive strategy that parallels that of brachinines.
DI GIULIO, ANDREA
openaire   +2 more sources

Biosynthetic origin of benzoquinones in the explosive discharge of the bombardier beetle Brachinus elongatulus

The Science of Nature, 2020
Bombardier beetles are well-known for their remarkable defensive mechanism. Their defensive apparatus consists of two compartments known as the reservoir and the reaction chamber. When challenged, muscles surrounding the reservoir contract sending chemical precursors into the reaction chamber where they mix with enzymes resulting in an explosive ...
Athula B. Attygalle, Sihang Xu, Wendy Moore, Reilly McManus, Aman Gill, Kipling Will   +5 more
openaire   +2 more sources

Spray mechanism of crepidogastrine bombardier beetles (Carabidae; Crepidogastrini)

Chemoecology, 2001
The defensive glandular apparatus of primitive bombardier beetles of the tribe Crepidogastrini (Carabidae) is described for the first time. As exemplified by two African species (Crepidogaster ambreana and C. atrata), the apparatus conforms to the basic bombardier plan, in that the glands are bicompartmented and the secretion is quinonoid (it contains ...
Thomas Eisner, Daniel J. Aneshansley, Jayne Yack, Athula B. Attygalle, Maria Eisner   +4 more
openaire   +1 more source

Spray Mechanism of the Most Primitive Bombardier Beetle (Metrius Contractus)

Journal of Experimental Biology, 2000
ABSTRACT The bombardier beetle Metrius contractus discharges its defensive secretion as a froth that clings to its body. When attacked from the rear, it allows the froth to build up over the gland openings near the abdominal tip; when attacked from the front, it conveys the secretion forwards along special elytral tracks. M.
T, Eisner, D J, Aneshansley, M, Eisner, A B, Attygalle, D W, Alsop, J, Meinwald   +5 more
openaire   +2 more sources

Bombardier beetles of genus Brachinus Weber, 1801 (Carabidae: Brachininae: Brachinini) from India

Zootaxa, 2020
Brachinus devagiriensis sp. nov. is described from the Western Ghats, a global hot spot of biodiversity in southwest India. Detailed diagnostic features of the 27 species of Indian Brachinus with a key to the species are provided. 
S.V. AKHIL, M. DIVYA, K. THOMAS SABU
openaire   +3 more sources

Chemistry of defensive secretions of bombardier beetles (Brachinini, Metriini, Ozaenini, Paussini)

Journal of Insect Physiology, 1977
Abstract Data are given on the chemical composition of the defensive secretions of species of carabids of the genera Brachinus, Stenaptinus, Metrius, Goniotropis, Pachyteles, Ozaena, and Homopterus. All produce quinonoid secretions, containing from one to three of four different benzoquinones (1,4-benzoquinone; 2-methyl-1,4-benzoquinone; 2,3-dimethyl-
Thomas Eisner, Tappey H. Jones, Daniel J. Aneshansley, Walter R. Tschinkel, Robert E. Silberglied, Jerrold Meinwald   +5 more
openaire   +1 more source

Flanged Bombardier Beetles from Laos (Carabidae, Paussinae)

2009
The Paussinae of Laos were recently studied based on new material collected by the Natural History Museum Basel. Two species are described as being new to science, Lebioderus brancuccii sp.nov., and Paussus lanxangensis sp.nov., and two species are new records for Laos. All species are shown in drawings.
openaire   +1 more source

Biochemistry at 100°C: Explosive Secretory Discharge of Bombardier Beetles ( Brachinus )

Science, 1969
The defensive chemical spray of bombardier beetles is ejected at 100°C, with a heat content of about 0.2 calorie per milligram.
D J, Aneshansley, T, Eisner, J M, Widom, B, Widom   +3 more
openaire   +2 more sources

Development of The Bombardier Beetle Fire Extinguisher: CFD Model Investigation

Proceeding of 8th Thermal and Fluids Engineering Conference (TFEC), 2023
Elijah Yoder, Wayne Strasser
openaire   +1 more source