Cossula duplexata, Davis & Gentili-Poole & Mitter, 2008

Davis, Steve R., Gentili-Poole, Patricia & Mitter, Charles, 2008, A revision of the Cossulinae of Costa Rica and cladistic analysis of the world species (Lepidoptera: Cossidae), Zoological Journal of the Linnean Society 154 (2), pp. 222-277 : 269-270

COSSULA DUPLEXATA SP. NOV.

( FIGS 43 , 81, 82 , 103 , 143)

Male ( Fig. 43 ): Forewing length: 22 mm.

Head: Antenna light brown; labial palpus rustybrown dorsally and ventrally; frons rusty-brown; vertex dark rusty-brown to fuscous.

Thorax: Patagia same colour as vertex; tegula and dorsum mixed with white, brown and fuscous scales; pleura mostly brown, with some white along base of forewing; venter mostly brown, mixed with creamy white and light brown; a dark brown to fuscous patch below labial palps, ventrally. Legs mostly rustybrown, lighter brown mesally. Forewing a mix of different shades of brown dorsally, mixed with creamy white; several short fuscous striae traversing wing, with few striae along costal and inner margins; an elongate fuscous spot beginning at base of discal cell and extending towards inner angle; terminal patch with outer margin greyish brown and inner margin dark brown to fuscous; a brown to fuscous spot separate from terminal patch between CuA 1 and CuA 2; fringe different shades of brown; forewing mostly brown ventrally, with a mix of cream along wing; costal margin cream and brown banded. Hindwing brown dorsally and ventrally; fringe different shades of brown.

Abdomen: Brown to dark brown dorsally and laterally; mostly light brown and cream ventrally; A7–8 light brown and cream.

Male genitalia ( Figs 81, 82 , 103 ): Valva oblong and rounded apically; length of valva approximately 0.7¥ length of genital capsule; gnathos–uncus expanse approximately 0.03¥ length of genital capsule; sacculus with a lenticular ridge running lengthwise and developing terminally into a blunt spinose process; juxta process elongate and wide; gnathos arms short; gnathos bridge elongate and narrow, broadly downcurved as viewed laterally, subacute terminally and apressed to uncus; uncus elongate and narrow, downcurved with gnathos bridge, with apex truncate and shallowly bifurcate. Aedoeagus becoming wider towards rostellum, as viewed laterally; rostellum short, knob-like and blunt apically; vesica with a dense covering of small spines at distal end where ductus ejaculatorius emerges.

Female: Unknown.

Distribution: Known only from the type locality, Costa Rica.

Holotype: ♂; COSTA RICA: CARTAGO: Moravia de Chirripo , 1100 m: 16.iv.1983, A. M. Chavarria, slide USNM 96036 ( INBio).

Host: Unknown.

Flight period: April (unique record).

Etymology: Derived from the Latin suffix ‘-atus’ meaning ‘imitate’ or ‘copy’. Cossula duplexata refers to its similarity to C. duplex .

Discussion: This species most closely resembles C. duplex in wing pattern and colour, and an undescribed species from Brazil in male genital morphology. Cossula duplexata differs from duplex in possessing a smaller, fuscous scale patch at the base of the forewing discal cell ( Fig. 43 ). The male genitalia of duplexata differs from the Brazilian species in possessing a more curved, caudal apex of the gnathos and in the distinctly shorter, broader saccular process of the valvae ( Fig. 81 ). In the Brazilian species the gnathos is not curved and the saccular process is long and slender.

Figures

Figures 32–43. Adults: 32, male, Magulacra niveogrisea; 33, female, Magulacra niveogrisea; 34, male, Cossula arpi; 35, female, Cossula arpi; 36, male, Cossula buspina; 37, male, Cossula coerulescens; 38, female, Cossula coerulescens; 39, male, Cossula cossuloides; 40, female, Cossula cossuloides; 41, male, Cossula duplex; 42, female, Cossula duplex; 43, male, Cossula duplexata. Scale bar = 10.0 mm.

Figures 77–88. Male genitalia. Cossula cossuloides: 77, genital capsule; 78, aedoeagus. Cossula duplex: 79, genital capsule; 80, aedoeagus. Cossula duplexata: 81, genital capsule; 82, aedoeagus. Cossula gaudeator: 83, genital capsule; 84, aedoeagus. Cossula longirostrum: 85, genital capsule; 86, aedoeagus. Cossula minutiloba: 87, genital capsule; 88, aedoeagus.

Figures 101–106. Male genitalia, lateral view of genital capsule: 101, Cossula cossuloides; 102, Cossula duplex; 103, Cossula duplexata; 104, Cossula gaudeator; 105, Cossula longirostrum; 106, Cossula minutiloba. Scale bar = 1.0 mm.