Two New Species of Psychocampa and a Possible Case of Visual Mimicry in the Sack-Bearer Moths (Lepidoptera: Mimallonoidea) St Laurent, Ryan A. Carvalho, Ana Paula S. Kawahara, Akito Y. Insect Systematics and Diversity 2019 2019-04-26 3 2019 3 1 9 St Laurent St Laurent & Carvalho & Kawahara 2019 [818,1196,532,555] Insecta Mimallonidae Psychocampa Animalia Lepidoptera 5 6 Arthropoda species celaeno sp. nov.  ( Figs. 3, 8, and 9) (Zoobank LSID: urn:lsid:zoobank.org:act: 61ABAA52-CCF7-41BF- 81EE-E9CA883BFD92) Diagnosis This species can only be confused with  P. aello.  Psychocampa celaenois smaller and has lighter khaki coloration on the forewing marginal area. In the male genitalia the gnathos arms are narrower and more finely tipped in  P. celaeno, the phallus is also thinner (flatter) in this species. The eighth sternite projections are parallel in  P. celaeno, while curving inward in  P. aello. Male  Head: Coloration off-white. Antennae bipectinate to tip, distal quarter of pectinations dramatically shorter than basal three quarters of pectinations, coloration dark brown, covered in lighter gray scales. Labial palpus extends to edge of frons, apparently three segmented, ventrally off-white as for head, dorsally with dark brown scales. Proboscis apparently absent. Eyes very large, consisting of more than two-thirds area of head. Thorax: Dorsally dark black-brown, prothoracic scales light gray, becoming almost off-white near head, thorax ventrally entirely offwhite, densely clothed in long hair-like scales. Legs: Femur and tibia the same off-white coloration as ventral surface of thorax; tarsal segments contrastingly dark brown. Tibial spurs very short, hardly extending out from vestiture of tibia. Forewing dorsum: Forewing length: 22.5 mm, wingspan: 44.0 mm, n = 1. Acutely triangular, deeply falcate. Ground color dark brownish black. Antemedial line as very faint, black, wavy line. Postmedial line nearly absent, reduced to a darker region near costa, remain- der of postmedial line as faint straight line. Antemedial and medial areas mostly concolorous, coloration substantially lighter khaki colored submarginally. Discal spot absent. Fringe dark brown, not contrasting against ground color. Forewing ventrum: Similar to dorsum but more uniformly black, basally off-white scales present. Postmedial line more well-defined, complete, consisting of weakly dentate line angled toward costa after Rs4. Discal spot somewhat more visible than on forewing dorsum. Hindwing dorsum: Somewhat squared, margin nearly straight, coloration as for forewing dorsum, submarginally darker brown rather than khaki. Hindwing ventrum: Follows similar pattern as forewing ventrum, postmedial line convex, discal spot well-defined, basal white area more expansive including most of medial area. Abdomen: Extending well beyond anal angle of hindwing, coloration black except for rectangular patch of contrasting white scales on anterior segments, ventrally uniformly black. Terminally with tuft of scales from valvae. Sternite of VIII with pair of parallel fingerlike projections. Genitalia: ( Fig. 8) n= 1. Vinculum narrow, ovoid, tegumen shorter than uncus, uncus very narrow, fingerlike. Gnathos extends downward from heavily sclerotized ventral margins of tegumen, distally gnathos as robust triangular arms which reach beyond saccular edge of valvae, becoming narrow and fingerlike distally, deeply wrinkled latitudinally basally. Valvae rectangular basally, distally extended and truncated. Valvae with weakly projected baseo-mesal setaecovered lobe. Juxta fused to phallus with paired knob-like lateral components, phallus flattened, otherwise simple, cylindrical. Vesica thick, bag-like, spiculate.   Figs. 6–8.  Psychocampamale genitalia. a = ventral, b = lateral, c = eighth sternite projections, d = phallus. (6)  P. funebris, Brazil, Paraná, Castro, St Laurent dissection: 5-7-18:4 (USNM). (7)  P. aelloholotype, Colombia, Caldas, Victoria, 2400’, St Laurent dissection: 7-20-18:1 (USNM). (8)  P. celaenoholotype, Panama, Chiriquí, Santa Clara, Finca Hartmann, Ojo de Agua, ca. 1,500 m, St Laurent dissection: 7-20-18:2. Scale bar = 1 mm.   Fig. 9.Collecting localities of the  Psychocampaspecies treated in the present study.The locality of the undescribed Peruvian species is not shown as it is so far of uncertain identity. Female Unknown. Type Material    HOLOTYPE: 1 Ơ, Panama: Chiriqui, Santa Clara, Finca Hartmann, Ojo de Agua, ca.  1,500 m. 08° 51 ′41.1 ″N, 082° 44 ′35.7 ″W,  20–25 May 2012,John R.MacDonald/ St Laurent dissection:7-20-18:2/  HOLOTYPEƠ  Psychocampa celaeno St Laurent 2019( MEM). No paratypes. Etymology Like  Psychocampa aello,  P. celaenois named for a Harpy sister, Celaeno, of Greek and Roman mythology. Distribution   Psychocampa celaenois only known from the holotypecollected at 1,500 min Chiriquí, Panamá( Fig. 9). 2012-05-20 2012-05-25 2012-05-20 R de Agua Panama 1500 8.861417 Ojo de Agua 1 -82.74325 6 7 1 Chiriqui holotype MEM Panama 6 7 2 Chiriqui holotype