Microrhopala rubrolineata (Mannerheim)

Eiseman, Charles S., 2014, New Host Records and Other Notes on North American Leaf-Mining Chrysomelidae (Coleoptera), The Coleopterists Bulletin 68 (3), pp. 351-359: 354

publication ID

http://doi.org/ 10.1649/072.068.0302

persistent identifier

http://treatment.plazi.org/id/FD4B87B6-3125-FFC2-FF4D-FC220F7DF9BC

treatment provided by

Valdenar

scientific name

Microrhopala rubrolineata (Mannerheim)
status

 

Microrhopala rubrolineata (Mannerheim)  

On 8 November 2012, in Madera Canyon, Arizona, I found a single leaf mine on Brickellia betonicifolia A. Gray   ( Asteraceae   ). It was transparent and followed the leaf edge, with abundant frass in the form of long, narrow threads or strips ( Fig. 7). Since the mine had a parasitoid exit hole, I opened it and photographed the larval remains, which were definitely coleopteran. Just two hispines have been associated with Brickellia Ell.   , in both cases only as adults, and both species have been found in Madera Canyon ( Staines 2012; C. L. Staines in litt.). The two remaining front legs of this larva were segmented, ruling out Octotoma marginicollis Horn.   The immature stages of the other species, M. rubrolineata   , are unknown, but C. L. Staines (in litt.) suggested that the larva I photographed was consistent with Microrhopala Chevrolat. If   future rearing can confirm this as a larval host, it will be the first record of Microrhopala   larvae feeding on a host in the tribe Eupatorieae   . All known larval hosts of North American species are in Astereae   and Heliantheae ( Staines 2012)   .