Lychnophaes Lacordaire 1848

Le résumé fourni par la source

5.3. 3. GenusLychnophaesLacordaire, 1848 Lacordaire 1848: 574 (genus and species description); Chapuis 1874: 218 (catalog); Achard 1914: 4 (catalog); Blackwelder 1946: 650 (catalog); Monrós 1956: 59 (revision of the tribe, figures); Monrós 1960: 9 (catalog). Type species. Cryptocephalus globulosus Olivier, by subsequent designation by Achard, 1914. Taxonomical history of Lychnophaes. Following Lacordaire (1848), the species belonging to the Lychnophaes are easily distinguished due to the variety of colors found in the few species known, and for the Lamprosoma due to the no appendiculate claws. The nine species that were studied by Lacordaire one distributed in Brazil, five from French Guiana, one from both localities, and the last two from Colombia. Besides the color, Lacordaire divided the species into two groups based on the ocular margin. The first one was defined by the “ Eyes triangularly emarginated in the lower half ” and comported Lychnophaes laticollis, Ly. globosus, Ly. cornutus, while the second group was defined as “ Eyes quadrangularly emarginated in the lower half ”, and the following species belong to them: Ly. principalis, Ly. pilula, Ly. empyreus, Ly. hypochrysus, Ly. purpureus and Ly. cyaniceps. Only two specimens of Lychnophaes principalis (Lacordaire, 1848) were deposited in the collection of Pe. Jesus Santiago Moure. However, the two differences observed by Lacordaire: deeply notched eyes in the lower half and triangular eyes, and slightly notched below the middle, were not observed in our material. The study of other species of the genus may better interpret this characteristic.

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