KEYS    About TortAI    Fact Sheets    Glossary    ID Thumbnails    DNA Search    Dissection Guides Cydia deshaisiana << Previous Next >> Port Interception Target - Larva Cydia deshaisiana (Lucas) (Tortricidae: Olethreutinae: Grapholitini) Common names: Mexican jumping bean moth Synonyms: saltatoria (Carpocapsa), saltitans (Carpocapsa), sebastianiae (Grapholitha) Fig. 1: Male Fig. 1: Male Fig. 2: Female Fig. 2: Female Fig. 3: Male genitalia Fig. 3: Male genitalia Fig. 4: Female genitalia Fig. 4: Female genitalia Fig. 5: Larva in seed Fig. 5: Larva in seed Fig. 6: Larva in seed Fig. 6: Larva in seed Fig. 7: Pupal exuvium and seed Fig. 7: Pupal exuvium and seed Fig. 8: Pupal exuvium in seed Fig. 8: Pupal exuvium in seed Fig. 9: Seed and adult Fig. 9: Seed and adult Fig. 10: Resting adult Fig. 10: Resting adult Adult Recognition FWL: 8.0-11.0 mm Forewings are gray to light gray with dark-brown to black markings. Many individuals have a row of black dots or dashes along the termen and a white dot below two dark markings on the apex. Hindwings are brown. Adults may appear similar to many other species of Cydia. A genitalic dissection can be used to confirm identity. Larval Morphology Larvae are whitish and unmarked with a brown head. Although similar to those of many other Cydia, larvae are unlikely to be encountered outside of a Euphorbiaceae seed. Biology Larvae tunnel inside the seeds of the host plant and feed inside. The seeds eventually drop from the host plant during the summer rainy season. Larvae are able to move or "jump" the seeds, or "beans," by rapid twitching; this behavior is triggered by temperature and may be a mechanism to move the seed to a more favorable location (such as out of direct sunlight). Larvae overwinter within the seed and pupation occurs the following spring. Adults emerge from the seed through a circular "door" that is cut by the larva prior to pupation. Host plants Larvae of Cydia deshaisiana feed inside the seeds of various species of Euphorbiaceae. Family Genus/species Common name Euphorbiaceae Croton L. croton Euphorbiaceae Sapium Jacq. milktree Euphorbiaceae Sebastiania bilocularis S. Watson arrow poision plant Euphorbiaceae Sebastiania pavoniana (Mull. Arg.) Mull. Arg. Mexican jumping bean Euphorbiaceae Sebastiania Spreng. Sebastian-bush Distribution Cydia deshaisiana is a native of Mexico and is found in the northern states of Sinoloa and Sonora. The "Mexican jumping bean capitol of the world" is supposedly near the town of Alamos, Sonora. "Mexican jumping beans" are frequently imported into the U.S., occasionally in large numbers. Several websites are available that supply the "beans," complete with live larvae, on a commercial scale. Such sites include: http://www.jbean.com/ and http://www.jumpingbeansrus.com/. References Cranshaw, W. 2010. Colorado insect of interest: Mexican jumping bean moth. http://www.colostate.edu/Dept/bspm/extension%20and%20outreach/Mexican%20jumping%20bean%20moth%2004November2010.pdf Powell, J. A. and P. A. Opler. 2009. Moths of western North America. University of California Press, Berkeley. 369 pp. Wagner, D. L. 2005. Caterpillars of eastern North America: A guide to identification and natural history. Princeton University Press, Princeton, New Jersey. 512 pp. Photo Credits Figs. 5-10: Whitney Cranshaw, Colorado State University, Bugwood.org Tortricids of Agricultural Importance by Todd M. Gilligan and Marc E. Epstein Interactive Keys developed in Lucid 3.5. Last updated August 2014.