Timarcha strangulata

Petitpierre, Eduard & Anichtchenko, Alexander, 2018, Endophallus structure: a promising tool for cryptic species identification in Timarcha Samouelle, 1819 (Coleoptera: Chrysomelidae: Chrysomelinae), Zootaxa 4446 (3), pp. 361-383 : 370

“ T. strangulata ” —group

Description: THIS IS A MONOSpECIfIC GROUp THAT ONLY INCLUdES T. strangulata , A SpECIES WITH dORSALLY dEpRESSEd BOdY, ERASEd pOSTERIOR ANGLES Of pRONOTUM, ANd RAISEd BUT NON-fORKEd MESOVENTRITE. STRICTLY ALpINE SpECIES fROM BOTH SIdES Of CENTRAL PYRENEES AT ALTITUdES OVER 1000 M. SEVEN pOSSIBLE SUBSpECIES Of T. strangulata HAVE BEEN dESCRIBEd ( GÓMEZ-ZURITA & KIppENBERG 2010), ANd THE ENdOpHALLI Of TWO Of THEM HAVE BEEN ANALYZEd.

THESE TWO SUBSpECIES dISpLAY ALMOST IdENTICAL INTERNAL SACS ( fIGS 12A, B, C, d ) WITH STRONGLY REdUCEd MANUBRIUM; THEIR ENdOpHALLI ARE Of ELONGATE ELLIpTIC SHApE WITHOUT CLEAR ApICAL pROTUBERANCES, ALTHOUGH THEIR dORSAL pART IS COVEREd WITH SMALL THORNS.

Figures

FIGURES 9–12. Endophallus structure of “T. insparsa”, “T. balearica” and “T. strangulata” groups: 9a, b—T. insparsa (Sierra Nevada); 10a, b—T. marginicollis (Sierra Nevada). 11a, b—T. balearica (Menorca); 12a, b—T. strangulata epipleuralis (Canfranc), 12c, d—T. strangulata sculptipennis (Port de la Bonaigua). Scale = 1 mm.