title: The venomous hair structure, venom and life cycle of Lagoa crispata, a puss caterpillar of Oklahoma.
abstract: The presence of a unique population of Lagoa crispata, puss caterpillar, in western Oklahoma is reported. A detailed microscopic examination shows the structure of the L. crispata spines resemble the type 4 spines described by [Kawamoto, F., Kumada, N., 1984. Biology and venoms of lepidoptera. In: Tu, A.T. (Ed.), Handbook of Natural Toxins, Insect Poisons, Allergens and other invertebrate venoms, vol. 2, pp. 291-332 (ch. 9)]. The major food source of L. crispata are the leaves of oak (shin oak). The high tannin content of this food source results in spine extracts high in oak tannins. These extracts have activity but enzyme and toxin activity is lost with time. The gel filtration protein fractions are colored from brown to yellow and are inactive as enzymes or toxins. No hyaluronidase, protease or phosphohydrolase activity is detected in these protein fractions. The life cycle shows these caterpillars have 6 instars. Characterizations and annual emerging times of each instar are included.
authors.affiliation: Department of Entomology, Oklahoma State University, Stillwater, OK 74078, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Lamdin
authors.forename: D E
authors.initials: DE
authors.lastname: Howell
authors.forename: K M
authors.initials: KM
authors.lastname: Kocan
authors.forename: D R
authors.initials: DR
authors.lastname: Murphey
authors.forename: D C
authors.initials: DC
authors.lastname: Arnold
authors.forename: A W
authors.initials: AW
authors.lastname: Fenton
authors.forename: G V
authors.initials: GV
authors.lastname: Odell
authors.forename: C L
authors.initials: CL
authors.lastname: Ownby
mesh_terms: D000251:Adenosine Triphosphatases / Q000737:chemistry / Q000302:isolation & purification; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001180:Arthropod Venoms / Q000737:chemistry* / Q000201:enzymology / Q000633:toxicity; D004589:Electrophoresis, Disc; D010450:Endopeptidases / Q000737:chemistry / Q000302:isolation & purification; D005260:Female; D006197:Hair / Q000737:chemistry* / Q000201:enzymology; D006821:Hyaluronoglucosaminidase / Q000737:chemistry / Q000302:isolation & purification; D007313:Insecta / Q000737:chemistry*; D007814:Larva; D008018:Life Cycle Stages; D008297:Male; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D009825:Oklahoma; D011817:Rabbits; D051381:Rats; D016707:Tissue Fixation
chemical_list: D000596:Amino Acids; D001180:Arthropod Venoms; D006821:Hyaluronoglucosaminidase; D010450:Endopeptidases; D000251:Adenosine Triphosphatases