Triberta

Prins, Jurate De, Davis, Donald R., Coninck, Eliane De, Sohn, Jae-Cheon & Triberti, Paolo, 2013, Systematics, phylogeny and biology of a new genus of Lithocolletinae (Lepidoptera: Gracillariidae) associated with Cistaceae, Zootaxa 3741 (2), pp. 201-227 : 220

Key to the species of Triberta based primarily on phenotypic characters of adults, male and female genitalia and on larval host plants

1. Vertex of head whitish with slight brownish suffusion posteriorly; in the male genitalia, valva slender, bar-shaped, its median width never greater than a quarter of its length; caudal part of sternum VIII sharply triangular; in the female genitalia, signum of corpus bursae round, as big as ca. 63×56 µm; host Cistus sp. ( Figs 16 , 22, 23 , 60 )..................... T. cistifoliella

- Vertex of head brown anteriorly and whitish posteriorly; in the male genitalia, valva with central part enlarged, its median width never less than one third of its length; caudal part of sternum VIII broadly roundish; in the female genitalia, signum of corpus bursae not round, as big as ca. 32×21 µm; host Helianthemum sp. ( Figs 17–19, 21 ; 24, 25, 61)..... T. helianthemella

Figures

FIGURES 16 – 21. Male genitalia of Triberta species. 16, Lithocolletis cistifoliella Groschke, 1944, male, neotype, prep. TRB 3554 ♂, in ZSM. 17, Lithocolletis helianthemella Herrich-Schäffer, 1861, male, lectotype, prep. TRB 3935 ♂, in ZMHB. 18, Lithocolletis helianthemella Herrich-Schäffer, 1861, male, paralectotype, prep. TRB 3945 ♂, in ZMHB. 19, Valva of Triberta helianthemella, male, Italy, Verona, 25 / 30. vi. 2010, leg. P. Triberti, prep. TRB 3552 ♂, in MSNV. Scale bar 100 µm. 20, abdomen opening of Lithocolletis helianthemella Herrich-Schäffer, 1861, male, lectotype, prep. TRB 3935 ♂, in ZMHB. Scale bar 200 µm. 21, sternum VIII of Lithocolletis helianthemella Herrich-Schäffer, 1861, male, lectotype, prep. TRB 3935 ♂, in ZMHB. Scale bar 100 µm.

FIGURES 22 – 25. Female genitalia of Triberta species. 22, Triberta cistifoliella, Greece, prep. TRB 3559 ♀. Scale bar 200 µm. 23, same preparation, signum on corpus bursae, prep. TRB 3559 ♀. Scale bar 100 µm. 24, Triberta helianthemella, Italy, Verona, 25 / 30. vi. 2010, leg. P. Triberti, prep. DP 3807 ♀. Scale bar 200 µm. 25, same preparation, signum on corpus bursae, prep. DP 3807 ♀. Scale bar 100 µm.

FIGURES 60 – 61. Diagnostic characters in Triberta head vestiture of adults. 60, vertex of the neotype of Lithocolletis cistifoliella Groschke, 1944. 61, vertex of the lectotype of Lithocolletis helianthemella Herrich-Schäffer, 1861. Scale bar 100 µm.