Tetrarhanis laminifer Clench 1965

Tetrarhanis laminifer new species (Figs. 185-189)
Both sexes. — Upperside of both wings fuscous brown; costa of hindwing narrowly white, entirely distad of Sc. Fringe of forewing fuscous, of hindwing white to just before Cui, narrowly fuscous at ends of veins M» and M 3 . Underside of both wings white, each with a large oval fuscous spot at cell-end. Forewing usually with a minute fuscous dot in cell at about %; costal area with very sparse sprinkling — almost absent. Apical patch rather slender, from costa to M 3 , proximally fused with postmedian line (which continues, free, to Cu^, interrupted at the veins), distally separated from the coterminous subterminal line by a crenulate white line. Hindwing with postmedian line, interrupted at the veins, variable in extent; it may be nearly complete (Mi to inner margin) or present only posteriorly {Cn x to inner margin), or in varying intermediate conditions. Subapical patch, when present, in M1-M3, but it may be slight or absent. Spot in Cu 2 -2A at about 2/5 the distance from base to termen very faint or (usually) absent entirely.
Male genitalia (fig. 189). — Uncus deeply bifid; tegumen high and prolonged anteriorly, its posterior border forming in lateral view a sharp right angle with vinculum; fakes each with a large transverse subquadrate plate at its elbow — not an appendage but an expansion of the falx itself; this plate bears a long thickened ridge near and parallel to its anterior border. Vinculum somewhat broader at middle than either dorsally or ventrally, straplike as usual in the subgenus. Valva elongate, entire, with a short digitate process mesially, arising on ventral border near tip. Anellus supports triangular, directed perpendicularly to ventral edge of valva; anellus arms dorsally ovately expanded, posteriorly arched, situated more posteriorly than usual in the
Fig. 185, Tetrarhanis laminifer new species, Batanga, Cameroon, male holotype, upperside (x 1.4). Fig. 186, same specimen, underside. Fig. 187, the same, Lolodorf, Cameroon, female paratype. upperside. Fig. 188, same specimen, underside.
subgenus, so as to lie almost entirely behind the near vinculum in lateral view. Penis massive but not inflated, caecum not at all downbent, posteroventral process downbent, moderate in length; penis without dorsal teeth.
Holotype. — S, Batanga, Cameroon, 2-XII-1911 (A. I. Good), C. M. Ace. 4696.
Paratypes. — 4 S , 4 2 , same data, dated as follows: 18-V-1910, 22-11-1911, 27-111-1911, 4-X1-1911 males; 20, 22, 23-IV-1912, 20VI-1912 females; 1 S, Elat, Cameroon, 28-11-1923 (from Holland Collection ?); 1 9 , Zingi, 30 miles west of Efulen, 29-VII-1913 (H. L. Weber); 1 9 , Ajap, Cameroon, 12-VII-1912 (A. I. Good); 2 9 , Lolodorf, Cameroon, 6-III-1911 (A. I. Good) and 22-1-1915 (J. A. Reis). C. M. Ent. type series no. 418.

Tetrarhanis laminifer is a butterfly in the family Lycaenidae. It is found in Cameroon, Equatorial Guinea (Mbini) and Gabon. The habitat consists of primary forests.