caa a22 4500 469095806 CHVBK 20180323133030.0 cr unu---uuuuu 170328e19921001xx s 000 0 eng 10.1007/BF00317272 doi (NATIONALLICENCE)springer-10.1007/BF00317272 Stamp Nancy Department of Biological Sciences, University at Binghamton, State University of New York, Box 6000, 13902-6000, Binghamton, NY, USA aut Relative susceptibility to predation of two species of caterpillar on plantain [Elektronische Daten] [Nancy Stamp] Summary: The relative susceptibility to predators of a cryptic generalist caterpillar (Spilosoma congrua: Arctiidae) and a non-cryptic specialist (Junonia coenia: Nymphalidae) using the same hostplant species (Plantago lanceolata) was examined. In a laboratory experiment using predatory stinkbugs (Podisus maculiventris), more Junonia caterpillars than Spilosoma caterpillars were killed (70% vs. 16%). This result was a consequence of the Spilosoma spending some time under cover, moving frequently, feeding on leaves while under or adjacent to them, and spending little time on the leaves. In a field experiment using predatory wasps (Polistes fuscatus), the wasps found 7 times as many of the Junonia as the Spilosoma, and overall 6 times as many Junonia were killed as Spilosoma. Initially, 71% of the Junonia caterpillars encountered by wasps were killed, but by the fourth day of the test, only 22% of the Junonia encountered by wasps were killed. Over three full days of observations, a constant 50% of the Spilosoma caterpillars encountered by the wasps per day were killed. For the Junonia, evasion of predators rested on passive chemical defense. For the Spilosoma, evasion depended on being unapparent, speedy movement between feeding and resting sites and, if found, on fleeing immediately and quickly. These results indicate that Spilosoma caterpillars, by way of cryptic and escape behaviors, can be less susceptible to insect predators than Junonia caterpillars. Springer-Verlag, 1992 Junonia coenia nationallicence Spilosoma congrua nationallicence Podisus maculiventris nationallicence Polistes fuscatus nationallicence Plantago lanceolata nationallicence Oecologia Springer-Verlag 92/1(1992-10-01), 124-129 0029-8549 92:1<124 1992 92 442 https://doi.org/10.1007/BF00317272 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317272 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Stamp Nancy Department of Biological Sciences, University at Binghamton, State University of New York, Box 6000, 13902-6000, Binghamton, NY, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 92/1(1992-10-01), 124-129 0029-8549 92:1<124 1992 92 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer