Trichromia croceicervix, Laguerre, 2025

Laguerre, Michel, 2025, New species of Arctiinae east of the Canal Zone, Panama (Lepidoptera, Erebidae, Arctiinae, Arctiini), Faunitaxys 13 (12), pp. 1-17 : 9-10

Trichromia croceicervix sp. n.

ZooBank:https://zoobank.org/ 435A5403-B72D-444F-930B-60FB01216572

Holotype, ♂, PANAMA, Panama, Los Altos de Cerro Azul , 03-I-2021, 700 m, 9.2030° N 79.4150° W, L. & J. Harrison leg., dissected Gen. ML3855 (ligh-blue manuscript label). Will be deposited in MNHN.

Paratypes. In MLC.

- PANAMA, 1 ♂, same data as holotype but 06-I-2021.

- NICARAGUA, 2 ♂, Granada, Volcan Mombacho, Cutirre , 20-I-2004, 687 m, J.M. Maes leg.

One is dissected Gen. ML767 (white manuscript label), the second is sequenced Process ID ARCTD086-11, BOLD ID MILA 1591 (yellow printed label).

Diagnosis. – A species identical to Trichromialeucoplaga and impossible to distinguish by the external appearance only.

Male ( Fig. 19).

FWL = 15-16 mm. Almost impossible to distinguish from Trichromia leucoplaga from French Guiana. Nevertheless seems slightly larger and more robust: wingspan 32-33 mm against 29-30 mm for specimens from French Guiana. The vertex seems more orange, generally almosttotally pale ochreous brown in T.leucoplaga excepta thinorangebandnearcollar.Underside thelast third of the abdomen is washed with orange which is not the case in T. leucoplaga .

Genitalia male ( Fig. 20)

Extremely homogeneous in the group and almost impossible to differentiate. Genital capsule subrectangular. Uncus long and narrow with a bifid extremity. On the tegumen, above uncus and on each side a strong sclerotized curved process pointing inward. The two processes cross slightly just above uncus. Their extremity is strongly narrowed at the end finishing as a long spine. The terminal part is denticulate frontally. Valvae reach the tip of uncus. They are subquadrate at base then narrowed and subrectangular. The tip is evenly curved. Juxta short as a narrow triangle. Vinculum flat with a blade like saccus with a rounded tip and bent toward the left in ventral view.Aedeagus long, narrow and cylindrical with a short caecum penis. Vesica, short, multilobed, slightly scobinate.

Etymology. – From croceus which means yellow-orange and cervix which means here vertex, by reference to the colour of the vertex.

Early stages. – Unknown.

Distribution. – Presently known from Nicaragua to Eastern Panama.