TL;DR: Mocis larvae were reared successfully on all grasses supplied but not on the legumes lima beans, Phaseolus limensis, Macf; peanut, Arachis hypogaea L.
Abstract: Average numbers of fertile eggs laid by Mocis disseverans (Walker), M latipes (Guenee), and M marcida (Guenee) were 3080, 2774, and 1836, respectively Pre-oviposition periods ranged from 2-12 days with averages of 4, 4, and 5 days, respectively, for the 3 species Mocis larvae were reared successfully on all grasses supplied but not on the legumes lima beans, Phaseolus limensis, Macf; peanut, Arachis hypogaea L; and Glycine max L There were 6 or 7 larval instars; larvae pupated within folded leaves At 75 @+ 5@*F, the life-cycles on quineagrass, Panicum maximum Jacq of M disseverans, M latipes, and M marcida averaged 346, 274, and 458 days, respectively, but the ranges overlapped Mated females of M latipes and M disseverans each lived 13 days, while M marcida females lived 152 days All 3 species had a 1:1 sex ratio No parasitoid was found to be specific to any Mocis sp Parasitoids reared from Mocis pupae were the sarcophagids, Sarcodexia sternodontis Townsend, and Sarcophaga sp the braconids, Apanteles scitulus Riley, Meteorus autographa Muesebeck, and Microplitis maturus Weed; the chalcids, Brachymeria ovata ovata (Say), and B robusta (Cresson); and the ichneumonids, Coccygomimus aequalis (Provancher), Enicospilus purgatus (Say), E arcuatus? (Felt), and Gambrus ultimus (Cresson) Predators of Mocis larvae were a tenebrionid adult, Bothrothes fortis (Casey) and a carabid larva, Pinacodera sp
TL;DR: The number of males observed flying in a viewing area in the field was increased significantly by the presence of C20:C21 blends; however, the close approach of males and sustained hovering at baits were more blend sensitive than other behaviors.
Abstract: Responses of male velvetbean caterpillar moths, Anticarsia gemmatalis Hubner, were examined in field tests of cone-type traps baited with the female sex pheromone compounds, (Z,Z,Z)-3,6,9-eicosatriene (C20) and (Z,Z,Z)-3,6,9, heneicosatriene (C21). Various blends, formulated on rubber septa, were quantified in the laboratory for release rate and release ratio of the C20 and C21 components; the optimum release ratio (C20:C21) and rate for the capture of males were 78:22 and 10 ng/h, respectively. This specificity was not apparent unless both parameters of release rate and ratio were tested. The number of males observed flying in a viewing area in the field was increased significantly by the presence of C20:C21 blends; however, the close approach of males and sustained hovering at baits were more blend sensitive than other behaviors. Three species of the genus Mocis also responded to the velvetbean caterpillar pheromone components: disseverans (Walker), latipes (Guenee), and marcida (Guenee). M. disseverans was captured in large numbers and responded preferentially to baits that released about 50% or more C21. The most M. disseverans were captured at traps containing only C21.
TL;DR: Comparative descriptions and keys are given for larvae and pupae of 4 species of Mocis Hubner, all of which are pests of pasture and turf grasses in Florida, where no characters of larvae or pupae were found to separate M. marcida from M. texana.
Abstract: Comparative descriptions and keys are given for larvae and pupae of 4 species of Mocis Hubner, all of which are pests of pasture and turf grasses in Florida. Length and shape of anal setae separate M. latipes Guenee and M. disseverans Walker from M. marcida Guenee and M. texana Morrison. No characters of larvae or pupae were found to separate M. latipes from M. disseverans; and M. marcida from M. texana.
TL;DR: Pheromonal secretions produced by females and males of the noctuid moth,Mocis megas (Guénée) have been analyzed by gas chromatography and mass spectrometry.
Abstract: Pheromonal secretions produced by females and males of the noctuid moth,Mocis megas (Guenee) have been analyzed by gas chromatography and mass spectrometry (EI (electron impact) and CI (chemical ionization)). The female sex pheromone was a blend of (Z,Z,Z) 3,6,9 heneicosatriene (55%) and (Z,Z) 3,6-cis-9S, 10R-epoxyheneicosadiene (45%). Male secretion produced at the level of a prothoracic organ was a blend of two unsaturated major hydrocarbons: (Z,Z) 6,9 heneicosadiene, (64%) and (Z,Z,Z) 3,6,9 heneicosatriene (24%) and C19, C20 and C22 homologues (total ratio 12%), as minor components. The trienic hydrocarbon was present in both sexes. The behavioral role of this male secretion has not yet been elucidated.