Revision of the " Aemilia " ambigua (Strecker) species-group (Noctuidae, Arctiinae) Author Schmidt, Christian Canadian Food Inspection Agency, Ottawa ,, Canada text ZooKeys 2009 2009-05-12 9 9 63 78 journal article 10.3897/zookeys.9.149 710c183e-b0f2-4955-8985-cd90a15a4ac2 1313–2970 576452 0B7144FA-80DE-4D12-9456-1434A3FDEA25 Pseudohemihyalea sonorosa Schmidt , sp. n. urn:lsid:zoobank.org:act: E93D6C4F-07C4-42AF-97EE-2C283679E945 Figs. 4 , 9 , 15 , 20 , 22 , 25 Type material. Holotype – ♁, Mexico , Sonora , Mesa Compañera , 12 mi. w. Yecora , 2600 m , 10-14 Sep 2004 , P.A. Opler [ CNC ] . Paratypes . 2 ♀♀ , same data as holotype [ CSU ] ; 1♁, 4♀♀ , Same locality as holotype, 10 sep 2004 , leg. Bowman and Opler [ DEB ] . Diagnosis . This species is superficially most similar to P . ambigua and P . potosi sp. n. , but P . sonorosa can be separated from both by its significantly larger size, distinct pink hindwing cast, and late flight period (September vs. June-July). Internally, the uncus is 1.4 x longer than that of P . ambigua , averaging 1.8 mm compared to 1.3 mm in P . ambigua ; the uncus has a deeper, narrower basal cleft than P . ambigua (cf. Figs. 15 and 11); compared to P . potosi sp. n. , P . sonorosa has an elongate, not triangular saccular process, and a much longer and narrower valve overall (cf. Figs. 9 and 10). The male vesica is covered in hair-like spines, unlike the small thorn-like cornuti of all other ambigua- group species. In females, the corpus bursae is nearly 3 x as large as the bulla seminalis (fig. 22), compared to about 1.5 x in other members of the ambigua -group. Description . Head – male antenna strongly bipectinate, longest rami about 6.0 x longer than segment length; dorsal antennal scales pale rusty brown; vestiture of palps mostly pink with a few rust scales, frons and vertex rust, pinkish red bordering patagia. Thorax – vertex of thorax, patagia and tegulae rusty tan, tegulae slightly paler mesially; ventrally, thorax rusty tan tinged with pink; legs rusty tan, pink dorso-medially. Forewing – length (♁) 26.1 mm ( n = 2), ( ♀ ) 31.2 mm ( n = 2); intervenal areas ivory white, sparsely scaled, semi-translucent; veins broadly lined with rusty tan; fringe and costal margin tan-lined, anal margin with narrow white border; pattern similar ventrally but colours appearing washed-out. Hindwing – sparsely scaled, semi-translucent, pale pink; anal margin more densely scaled with pink scales. Abdomen – pink dorsally, pale tan ventrally; coremata absent. Male genitalia – uncus shaped like a bicycle saddle, i.e., with broad, bilobed base and tapering, finger-like apex; basal lobes heavily setose dorsally, apical portion slightly wider than median, with a spade-shaped dorsal profile; apex bluntly pointed, slightly down curved; division between costal and saccular processes extending slightly less than one-third of total valve length; apex of costal process bluntly rounded, tapering more gradually dorsally than ventrally; saccular process rounded-triangular, tapering to rounded apex; vinculum a short, broad scobinate conical projection; juxta urn-shaped in outline, with medial keel along dorso-ventral axis; saccus short, extending slightly cephalad beyond tegumen; aedeagus without spines; vesica simple, globose, lacking spines but with very fine indistinct cornuti. Female genitalia – lamella antevaginalis broad, flangelike, caudal margin concave; ductus bursae sclerotized, 2 x longer than wide and strongly flattened dorso-ventrally; corpus bursae simple, globose-ellipsoidal, signa lacking; ductus seminalis arising dorsally from caudal part of bursa near junction with ductus; bulla seminalis globose, approximately 1/3 diameter of corpus bursae when inflated. P. ambigua P. syracosia P. sonorosa P. potosi P. fallaciosa P. fallaciosa & P . syracosia Figure 25. Distribution of examined specimens of Pseudohemihyalea . Biology and distribution. The immature stages are unknown. Pseudohemihyalea s onorosa flies in upper elevation pine-oak forests of the Sierra Madre Occidental, Mexico during September. It is known only from the type locality, in the state of Sonora . Remarks . The name sonorosa is derived from both its occurrence in the state of Sonora and its pronounced rose-coloured hindwings.