Diabrotica circulata Harold 1875

(Figs 26–35)

circulata Harold 1875: 91 (type locality: Guatemala; type depository: MNHN, lectotype, female, designated by Smith and Lawrence 1967: 49).

nummularis Harold 1877: 110 (type locality: Mexico; type depository: MfN, lectotype, male, designated by Smith and Lawrence 1967: 99). New synonym

Material examined. Diabrotica circulata: Lectotype female (MNHN): 1) [Guatemala Diabrotica circulata Harold typ.]; 2) [Ex Musaeo E. Harold]; 3) [Lectotype Diabrotica circulata Harold]. Paralectotypes 1 male and 1 female (MNHN): 1) [Ex Musaeo E. Harold]; 2) [Lectoparatype? Diabrotica circulata Har.]. Male (MNHN): 1) [Costa Rica]; 2) [Ex Musaeo E. Allard 1899]. Female (MNHN): 1) [Costa Rica]; 2) [ circulata]; 3) [Ex Musaeo E. Allard 1899]. Female (MNHN): 1) [Ex Musaeo E. Allard 1899]. Female (MNHN): 1) [M.-W.]; 2) [Ex Musaeo E. Harold].

Diabrotica nummularis: Lectotype male (MfN): 1) [numularis Harold.]; 2) [Hist.-Coll. ( Coleoptera) Nr. 30961 Diabrotica ornata N. Mexico, Deppe. Zool Mus. Berlin]; 3) [Lecto-type Smith 6]. Paralectotype female (MfN): 1) [Hist.-Coll. ( Coleoptera) Nr. 30961 Diabrotica ornata N. Mexico, Deppe. Zool Mus. Berlin]; 2) [Allolecto-type Smith 64].

Smith and Lawrence (1967) designated the lectotype of D. circulata and two paralectotypes (the paralectotype labels with question-marks) in the Allard collection in the MNHN. One of the paralectotype males is morphologically identical with the lectotype, except for gender-specific characters. We treat this male as the male of D. circulata . Genitalia of this male were examined (Figs 28–30). No substantial differences were found between the internal sacs of this specimen and those of the lectotype male of D. nummularis (Figs 33–35). The currently known geographic range of both taxa is about the same. Except for the very variable shape of elytral maculae, no substantial morphological differences were observed between these two taxa. Thus, we place D. nummularis as a synonym of D. circulata .