- A new species of Cornutalis Sakakibara (Membracidae: Smiliinae: Acutalini) from Colombia
- Cornutalis andinum
Biology. A single female was found at the border of the Los Nevados National Park, at the edge of the forest at 3100 masl, feeding on a shrub of Baccharis sp. (Asteraceae). This is the first host plant record for the genus. Adult aggregations of Alchisme bos (Fairmaire, 1846; Membracinae: Holophorionini) were also found on the same host (even females guarding their eggs, see Fig. 4 A, 4 B, 4 D). Alchime bos, shows convergent pronotal shape and colour (Fig. 4 A – D) to such an extent that its representatives were difficult to distinguish from Cornutalis in the field. Both species have the pronotal horns directed laterally, dorsally, and anteriorly (depending on the aspect), and both are ochreous green in live specimens; however, A. bos has a triangular dorsal process (Fig. 4 C, 4 D) while C. andinum has a dorsal elevation without a distinct process (Fig. 2 A, 2 C). Indeed, the paratype of C. andinum was misidentified as Alchisme at IAvH.
Diagnosis. Overall body coloration ochre; suprahumeral horns conical and robust, in a lateral view obliquely antero-dorsally directed, and in frontal view dorso-laterally directed, antero-dorsally reddish and apically yellow; pronotal median carina red posterior to humeral angles; dorsal contour of pronotum widely arched.
Etymology. From the Latin: andinum, pertaining to the Andes, where all the species of the genus have been collected.
Examined material. Holotype female. ‘ COLOMBIA. Risaralda, Pereira, Vereda El \ Bosque, Zona con función amortiguadora PNN \ Los Nevados, 4 ° 43 ' 58.94 " N, 75 ° 27 ' 29.97 " W, \ 3100 msnm, en Baccharis sp. (Asteraceae) cerca \ de agrupaciones de Alchisme bos \ (Hoplophorionini), borde de bosque, 8 - ene- 2015, \ leg. C. Bota, C. Flórez, S. Moncada, E. Santa, W. \ Valencia \ CBUCES-F 269 ’. Repository: CBUCES. Condition: Well preserved. Abdomen and entire left posterior leg dissected. Paratype female. ‘ SFF Galeras, Corregimiento Mapachico, Vda. San Cayetano, 3300 m, bosque-potrero, malaise, 17. III. 1998, C. H. Erazo, IAvH- 87087 ’. Repository: IAvH. Condition: Well preserved, except by a small hole between vertex and frontoclypeus.
- Cornutalis andinum