Spiladarcha puravida, Sohn, Jae-Cheon, 2014

Sohn, Jae-Cheon, 2014, Three new species of Spiladarcha Meyrick, 1913 (Lepidoptera: Urodidae) from Costa Rica, Zootaxa 3884 (1), pp. 73-80 : 74-76

Spiladarcha puravida n. sp. ( Figs 1, 2 , 8 , 13 )

Diagnosis: Spiladarcha puravida is similar to S. adamskii Sohn ( Figs. 4 , 7 , 11 ) in external appearance and genital structure, but differs from the latter in having the forewings darker, the apex of uncus broader, the saccular processes larger, and two signa in the female corpus bursae, which are absent in S. adamskii .

Description: Head—Scales on vertex and frontoclypeus pale brownish gray, with white tips. Antennal scape dark brownish gray, intermixed with white on basal half, dark brown on distal half; elongate scales on anterodistal part of scape dark brown, with white tips; flagellomere pale brownish gray on basal half, dark brownish gray on distal half. Labial palpus upcurved to middle of frons; 1st segment dark brown, intermixed with brownish white; 2nd segment pale yellowish gray, suffused with dark brown on distal 2/3 of outer surface; 3rd segment pale yellowish gray, suffused with dark brown on distal 5/6 of outer surface.

Thorax—Patagium dark gray, sparsely intermixed with yellowish-gray scales; tegula brownish gray; mesonotum pale brownish gray, darkened along margins. Foreleg with coxa brownish white, intermixed with dark brown; femur dark brown, intermixed with brownish white on outer surface, pale gray on inner surface; tibia dark brown, with brownish band at base, middle, and distal 1/4 dorsally, brownish white ventrally; tarsomere dark brown dorsally, brownish white ventrally, with brownish white ring distally. Midleg with coxa brownish white, sparsely intermixed with dark brown; femur brownish white, with broad dark-brown band near base, middle and distal 1/4 of outer surface; tibia dark grayish brown, with brownish-white band in basal 1/4, distal 1/5 and distal end of dorsal area, brownish white ventrally; tarsomere dark brown dorsally, brownish white ventrally, with brownish white ring distally. Hindleg with coxa, femur, and tibia lustrous brownish white; femur tinged with brownish gray on ventrobasal 1/3; tibia tinged with pale grayish brown in dorsodistal 1/2; 1st tarsomere pale grayish brown, brownish white distally; the remaining tarsomeres dark grayish brown, each with brownish white ring distally. Forewing length 4.2–6 mm (n=8), purplish gray, sparsely speckled with pale brownish gray; small pale reddish brown speckles at lower distal margin of discal cell, subbasal area of dorsum, and tornal area; two small patches of raised black scales at basal 1/3, similar in size, juxtaposed by a reddish brown suffusion basally; small black spots of raised scales scattered along veins on upper surface; fringe dark grayish brown. Hindwing dark purplish gray; fringe dark grayish brown.

Abdomen—Dorsal area dark grayish brown; ventral area lustrous, pale yellowish gray.

Male genitalia ( Fig. 8 )—Uncus subtriangular, with a pair of zones bearing short spiniform setae near apex. Tegumen subtrapezoidal; gnathos with slightly curved lateroventral arms, fused with denticulate medial part. Valva 3.5× longer than uncus, narrow; costa slightly bulged near basal 1/3; cucullus linguiform, sparsely setose; sacculus 3/4 length of valva, with upper margin nearly straight and densely setose; saccular process elongate at the distal end, extending toward costa, with round and setose apex. Juxta as a pair of crescent-shaped plates. Vinculum broadly rounded ventrally; saccus absent. Phallus nearly straight, slightly narrower toward apex, 3/4 as long as valva; ductus ejaculatorius arising from anterior end of phallus; vesica bearing a cornutal zone comprising numerous spinules, zone 2/3 as long as phallus.

Female A8 and genitalia ( Fig. 13 )—Sternite VIII slightly concave posteromarginally. Papillae anales small, semi-globular. Ovipositor as long as length of ductus bursae and corpus bursae together; A9 with weakly sclerotized areas on posterior half. Apophyses posteriores 2× longer than apophyses anteriores. Ostium bursae 1/3 as wide as posterior margin of sternite VIII. Ductus bursae bowl-shaped near ostium bursae, weakly sclerotized at posterior 1/6, with a sclerotized, granulate bulge and 5–7 transverse ridges between posterior 1/6 and anterior 1/4; inception of ductus seminalis present at middle of ductus bursae. Corpus bursae elliptical; two signa identical in size and shape, spiniform, with forked basal plate.

Types: Holotype—male, “ HOLOTYPE | Spiladarcha | puravida | SOHN 2014 ” [red label enclosed with black lines], “ COSTA RICA, Heredia: Est. Biol. La Selva, 50- | 150m, 10°26'N 84°01'W | Mar 1996, INBio-OET”, “ 21 Marzo 1996 | L/00/194 | SOR 500m ”, INBIO. Paratypes (4♂, 8♀)— 1♂, 1♀, same locality as holotype, 6–11 March 1996 (INBio-OET), [GSN] SJC-530 (♂), [WSN] SJC-W023 (♀); 1♀, ditto, 11 August 1993; 1♂, 2♀, ditto, 8–26 February 1996; 1♀, ditto, 15 April 1996; 1♂, ditto, 16 May 1996; 1♀, ditto, 6 May 1999, [GSN] SJC-546; 1♀, Limon Prov., Fca. de E. Rojas, Sector Cerro Cocori, 150m, October 1991 (E Rojas), [GSN] SJC-531; 1♂, ditto, March 1992 (E Rojas), [GSN] SJC-545; 1♀, ditto, April 1992 (E Rojas), all in INBIO.

Distribution: Costa Rica (Heredia, Limon).

Etymology: The species epithet refers to a popular greeting phrase in Costa Rica, ‘Pura Vida’, meaning “pure life” in Spanish.

Figures

FIGURES 1 – 6. Adults of Spiladarcha. 1. S. puravida n. sp., male, holotype (inset: labels); 2. S. puravida n. sp., female, paratype; 3. S. septifera n. sp., male, holotype (inset: labels); 4. S. adamskii Sohn, male, paratype; 5. S. tuberculata n. sp., male, holotype (inset: labels); 6. S. tuberculata n. sp., female, paratype.

FIGURES 7 – 10. Male genitalia of Spiladarcha (upper—genital capsule; lower—phallus). 7. S. adamskii Sohn, holotype; 8. S. puravida n. sp., holotype; 9. S. septifera n. sp., holotype; 10. S. tuberculata n. sp., paratype.

FIGURES 11 – 13. Female genitalia of Spiladarcha. 11. S. adamskii Sohn, paratype; 12. S. tuberculata n. sp., paratype; 13. S. puravida n. sp., paratype.