Dorynota (Dorynota) yucatana ( Champion, 1893 )

Simões, Marianna V. P. & Sekerka, Lukáš, 2015, Review of the Neotropical Leaf Beetle SubgenusDorynota s. str. Chevrolat (Coleoptera: Chrysomelidae: Cassidinae: Dorynotini), The Coleopterists Bulletin 69 (2), pp. 231-254 : 251

Dorynota (Dorynota) yucatana ( Champion, 1893) ( Figs. 41–43 , 46 )

Batonota yucatana Champion, 1893: 162 (type locality: ‘ Mexico, Temax in North Yucatan’ ).

Type Material Examined. Syntype, pinned: ‘ Temax, ∣ N. Yucatan ∣ Gaumer. [w, p, cb] ∥ Batonota ∣ yucatana, ∣ Champ. [w, hw, cb, G. C. Champion’ s hw] ∥ Sp. figured. [w, p, cb] ∥ Godman-Salvin ∣ Coll., Biol. ∣ Centr. - Amer. [w, p, cb]’ ( BMNH); six syntypes, pinned: ‘Temax, ∣ N. Yucatan ∣ Gaumer. [w, p, cb] ∥ Batonota ∣ yucatana, ∣ Ch. [w, hw, cb, Champion’ s hw] ∥ Godman-Salvin ∣ Coll., Biol. ∣ Centr.-Amer. [w, p, cb]’ ( BMNH); three syntypes, pinned: ‘ Temax, ∣ N. Yucatan ∣ Gaumer. [w, p, cb] ∥ Godman-Salvin ∣ Coll., Biol. ∣ Centr.-Amer. [w, p, cb]’ ( BMNH) ; syntype, pinned: ‘Temax, ∣

N. Yucatan. ∣ Gaumer. [w, p, s] ∥ Batonota ∣ yucatana, ∣ Champ [w, Champion hw, cb] ∥ NHRS-JLKB ∣ 000022144 [w, p, cb]’ ( SMNH).

Additional Material Examined (1). BELIZE: Cayo: without additional locality data, B. Davis lgt. (1 specimen, BMNH) .

Diagnosis. Dorynota yucatana can be readily characterized by its very small body, which is less than 8 mm long, while all other species are at least 11 mm long. Additionally, the pronotum is transverse, much broader than wide and broadly rounded, with laterally projecting humeral angles with high carinae. Champion (1893) mentioned that the punctures of the elytral intervals are visible only under strong lens. We have studied most of the type series, and the intervals are microreticulate without distinct punctation.

Remarks. The Belizean specimen mentioned above is the only specimen known to us besides those of the type series. It originally came from the collection of G. C. Champion, however, Champion most likely received it after the completion of the Cassidinae volume in Biologia Centrali- Americana, as it was not included there ( Champion 1893). It bears an original identification label from Champion, which reads ‘ Batonota sp. ’. In our opinion, the specimen belongs to D. yucatana because it is similar in size, shape, and form of the humeri. It differs only in its slightly coarser punctation and darker color. This variation is quite normal for Mesoamerican Cassidinae , as in southern populations there is a gradient towards a more sculptured and darker form.

Distribution. Mexico (Yucatán) ( Champion 1893). New country record for Belize ( Fig. 46 ).

Figures

Figs. 32–43. Dorynota (s. str.) species. 32) D. pugnax, holotype, dorsal view; 33) D. pugnax, lateral view; 34) D. rileyi, paratype, dorsal view; 35) D. rileyi, lateral view and labels; 36) D. rufomarginata, holotype, dorsal view; 37) D. rufomarginata, frontal view; 38) D. rufomarginata, lateral view; 39) D. wappesi, holotype, dorsal view; 40) D. wappesi, lateral view; 41) D. yucatana, syntype, dorsal view; 42) D. yucatana, frontal view; 43) D. yucatana, lateral view.

Fig. 46. Geographic distribution of seven Dorynota (s. str.) species.