Tijucana vitticollis (Jacoby, 1882)

Gómez-Zurita, Jesús & Maes, Jean-Michel, 2022, New Genera and Species Records of Nicaraguan Eumolpinae (Coleoptera: Chrysomelidae) Including a New Species in a New Generic Record for Central America, Neotropical Entomology 51 (5), pp. 705-721 : 718

Tijucana vitticollis (Jacoby, 1882)

( Figs. 2c , 6c )

New genus and species record: JGZC: female ( JGZC-1305 ), Río San Juan , El Castillo, Refugio Bartola , 10°58′37.19″N 84°20′12.33″W, 79 m, 3–6 November 2009, J.-M. Maes leg., Tijucana vitticollis (Jac.) J. Gómez-Zurita det. 2022. MEL: 1 ex., #223 , Río San Juan, Refugio Bartola , 10.972221 -84.33889, 40 m, 16–20 June 2007, J.-M. Maes leg.

Tijucana Bechyné, 1957 is a small genus that was proposed based on eyes strongly emarginate internally and reduced anterior prosternal lobes, and it only contains three known species ( Bechyné 1958): one from Brasil (State of Rio de Janeiro), one from Bolivia, and one that was known from Panama and later found in Costa Rica ( Flowers 1996). The presence of T. vitticollis in rainforests of the south of Nicaragua ( Fig. 6c ), close to the border with Costa Rica, slightly expands the range of the genus further north. Interestingly, one of the specimens, a female, has abnormally formed apex of right mesotibia and corresponding mesotarsus, where a notable case of trifid tarsal schistomelia can be observed ( Fig. 2c ). Schistomelia is the division of an appendix in two or more growth axes, and while this type of abnormality typically affects the antennae of many insects, there are relatively few reports of this process affecting the legs of Coleoptera ( Ortuño and Ramos Abuín 2008) , which makes this observation particularly interesting.

Figures

Fig. 2 Ventral view of the holotype of Caryonoda funebris n. sp. where the apomorphic prosternal furrows of Cary- onoda can be appreciated (a). Other panels showing details of other species discussed in the text, including the metafemoral tooth of the males of Megascelis spinipes Jacoby (b), and of an abnormal development in the right mesotarsus of Tijucana vitticollis (Jacoby) (c)

Fig.6 Dorsal views of the new records of Nicaraguan Eumolpinae in the tribe Typo- phorini, including Metachroma panamense Blake (a), Paria nigritarsis Jacoby (b), Tijucana vitticollis (Jacoby) (c), Typopho- rus apicicornis Jacoby (d), T. cyanipennis Lefèvre (e), and T. subbrunneus Jacoby (f). Scale bar=1.0 mm