Agripialus itatiaia, Mielke & Grehan & Koike, 2021

Mielke, Carlos G. C., Grehan, John R. & Koike, Ricardo M., 2021, Descriptions of two new genera and six new species of ghost-moths (Lepidoptera Hepialoidea: Hepialidae) from south-eastern and southern Brazil, Zootaxa 5020 (3), pp. 561-580 : 566

Agripialus itatiaia sp. n.

( Figs 5–6 , 22 , 26 , 33 , 43 , 47 , 53 )

Type material. Holotype ♂ ( Figs 5a–b ): 4,- XII, [19]26/ No. 24, J. F. Zikán/ Coleção J. F. Zikan/ Z. 4713/ HOLOTYPUS, Agripialus itatiaia C. Mielke, Grehan & Koike, 2021 / ( CEIOC) .

Paratype (1♀). BRAZIL. São Paulo: Queluz, Serra Fina , 2400 m. 7.XI.1986 ( CGCM 25.532 ( CGCM)) .

Diagnosis. Easily distinguished from congeneric species by a longer antero-posterior trapezoidal sternite VII (as long as sternite VI) in the female ( Fig. 33 ), in contrast to the proportionately wider rectangle of the other two species, and by the length of the ductus bursae being four times longer than the corpus bursae ( Fig. 53 ). The male differs from that of Agripialus caparao sp. n.] by absence of a whitish submarginal line on the forewing ( Fig. 5a ) and the presence of a minute sclerotised square on the posterior portion of the pseudotegumen ( Fig. 47 ).

Description. Male ( Figs 5 , 22 , 43 , 47 ).

Head. Antenna with ~37 antennomeres. Basal and second labial palpomeres each respectively three and five times longer than distal palpomere.

Thorax. Forewing length: 15 mm, wingspan: 31 mm. Wing ornamentation as shown in Fig. 5 .

Genitalia ( Fig. 47 ). Tegumen L-shaped. Saccus broadly U-shaped, posterior margin slightly notched. Pseudotegumen weakly sclerotised with a small rectangular sclerotisation posteriorly; anteriorly rectangular as a transverse bar, fused mesally and internally projected to articulate with fultura inferior. Fultura inferior posteriorly concave, projecting, and tapered anteriorly with concave lateral margins. Valva setose, distal half strongly sclerotised as long as basal portion.

Female ( Figs 6 , 26 , 33 , 53 ).

Head. Antenna with 32 antennomeres. Basal and second labial palpomere respectively two and three times longer than distal palpomere.

Thorax. Forewing length: 20 mm, wingspan: 40 mm. Wing ornamentation as shown in Fig 6 .

Genitalia ( Fig. 53 ). Connection between dorsal plates slightly sclerotized, dorsal plate subrectangular with broad, rounded ventral medial corner (anal papilla), and narrow knob-like antero-lateral corner; subanal plate slightly sclerotised, subrectangular. Lamella antevaginalis slightly sclerotized. Ductus bursae four times longer than corpus bursae.

Geographical distribution. Only known from a single site in Itatiaia National Park at 2400 m ( Figs 58 , 61 ).

Host plants. Unknown.

Etymology. The proposed specific name is homonymous to the national park’s name. It is treated as a noun in the nominative singular in apposition.

Figures

FIGURE 58. Distribution of Agripialus gen. n. spp. and Mutipialus gen. n. spp. within southern southeastern and southern Brazil and records of Agripialus gen. n. in Argentina (see remarks at the description of the genus).

FIGURES 5−7. Agripialus gen. n. spp. Adults. 5-6, A. itatiaia sp. n.: 5, HT ♂: dorsal view (5a), ventral view (5b) (CEIOC); 6, PT ♀ (CGCM 25.532): dorsal view (6a), ventral view (6b) (CGCM). 7, A. caparao sp. n.: HT ♂: dorsal view (7a), ventral view (7b) (DZUP).

FIGURES 16−24. Transverse scales and legs. Figs 16–19. Transverse scales (arrowed). 16, Mutipialus dilatus sp. n. PT ♂ (CGCM 23.689). 17, M. monticolus sp. n., HT ♀. 18, Parapielus luteicornis ♂ (CGCM 28.544, Argentina, Rio Grande; CGCM). 19, Hepialiscus htayaungi ♂ (CGCM 33.586, Myanmar; CGCM). Figs 20–24. Legs. 20, Agripialus campos sp. n., PT ♀ (CGCM 31.875). 21, A. variabilis sp. n., HT ♀. 22, A. itatiaia sp. n., HT ♂. 23, A. caparao sp. n., HT ♂. 24, Mutipialus dilatus sp. n., PT ♂ (CGCM 27.435).

FIGURES 25−30. Wing venation and tergosternal sclerite. Figs 25–28. Wing venation. 25, Agripialus caparao sp. n., ♂. 26, A. itatiaia sp. n., ♀. 27–28, Mutipialus dilatus sp. n., ♂ (27), ♀ (28); arrow pointing to the connection between CuP and A veins in forewing. Figs 29–30. Tergosternal sclerite. 29, Agripialus variabilis sp. n., ♀; arrows pointing to the notch and the posterior portion. 30, Mutipialus dilatus sp. n., ♂.

FIGURES 31−35. Female abdomen (upper side, tergites; lower side, sternites). 31, Agripialus campos sp. n., PT (CGCM 31.875). 32, A. variabilis sp. n., HT. 33, A. itatiaia sp. n., PT (CGCM 25.532). 34, Mutipialus dilatus sp. n., HT (CGCM 5.801). 35, M. monticolus sp. n., HT.

FIGURES 36−46. Abdomen. Figs 36–39. Female segments VI (lower)–VIII (upper). 36, Agripialus campos sp. n., PT (CGCM 31.875); arrows pointing to the sclerotised sternites VII and VIII. 37, A. variabilis sp. n., HT. 38, Mutipialus dilatus sp. n., HT (CGCM 5.801). 39, M. monticolus sp. n., HT; arrow pointing to the membranous sternite VIII. Figs 40–42. Male abdomen (upper side, tergites; lower side, sternites). 40, Agripialus caparao sp. n., HT. 41, M. dilatus sp. n., PT (CGCM 27.435). 42, M. monticolus sp. n., PT (CGCM 29.697). Figs 43–46. Male segments VII (lower)–VIII (upper). 43, Agripialus itatiaia sp. n., HT; arrows pointing to the two plates of the sternite VII. 44, A. caparao sp. n., HT; arrows pointing to the two plates of the sternite VII. 45, Mutipialus dilatus sp. n., PT (CGCM 27.435); arrow pointing to the sternite VIII. 46, M. monticolus sp. n., PT (CGCM 29.697); arrow pointing to the sternite VIII.

FIGURES 47−50. Male genitalia. 47, Agripialus itatiaia sp. n., HT: ventral (47a), dorsal (internal; 47b); arrows pointing to the posterior sclerotisation of the tergal lobe and pseudotegumen and the notch in the posterior margin of the saccus. 48, A. caparao sp. n., HT: ventral (48a), dorsal (internal; 48b); arrow pointing to the notch in the posterior margin of the saccus. 49, Mutipialus dilatus sp. n., PT (CGCM 27.435): lateral (49a), ventral (49b), dorsal (internal; 49c); arrow pointing to the entrance of the pocket-like saccus. 50, M. monticolus sp. n., PT (CGCM 29.697): lateral (50a), ventral (50b), dorsal (internal; 50c); arrow pointing to the entrance of the pocket-like caecum.

FIGURES 51−57. Female genitalia. 51, Agripialus campos sp. n., PT: posterior view and ductus and corpus bursae; arrow pointing to W-shaped lamella antevaginalis. 52, A. variabilis sp. n., HT: posterior view and ductus and corpus bursae. 53, A. itatiaia sp. n., PT (CGCM 25.532): posterior view and ductus and corpus bursae. 54, Mutipialus dilatus sp. n., HT (CGCM 5.801): posterior (54a), lateral (54b); arrow pointing to slight mesal projection of the lamella antevaginalis. 55, M. monticolus sp. n., HT: posterior (55a), lateral (55b); arrow pointing to slight mesal projection of the lamella antevaginalis. 56, Mutipialus dilatus sp. n., HT (CGCM 5.801): ductus and corpus bursae. 57, M. monticolus sp. n., HT: ductus and corpus bursae.

FIGURES 59−62. Habitats in Brazil. 59, Caparaó National Park, 2200 m, Espera Feliz, Minas Gerais (Agripialus caparao sp. n.). 60, Lavrinhas, 1900 m, Campos do Jordão, São Paulo (A. campos sp. n., Mutipialus dilatus sp. n., and M. monticolus sp. n.). 61, Itatiaia National Park, 2400 m, Itatiaia, Rio de Janeiro (A. itatiaia sp. n.). 62, São Joaquim National Park, 1600 m, Urubici, Santa Catarina (A. variabilis sp. n.).