Pseudohemihyalea sonorosa Schmidt, 2009

Schmidt, Christian, 2009, Revision of the " Aemilia " ambigua (Strecker) species-group (Noctuidae, Arctiinae), ZooKeys 9 (9), pp. 63-78 : 74-75

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

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.

Figures

Figure 25. Distribution of examined specimens of Pseudohemihyalea.

Figures 1-5. 1a. P. ambigua male (Santa Cruz Co., AZ, USA). 1b. P. ambigua female (Cochise Co., AZ, USA). 2a. P. syracosia male (Zacapa Dpto., Guatemala). 2b. P. syracosia female (Chiapas, Mexico). 3a. P. fallaciosa male (Chiapas, Mexico). 3b. P. fallaciosa female (Zacapa Dpto., Guatemala). 4a. P. sonorosa male paratype (Sonora, Mexico). 4b. P. sonorosa female paratype (Sonora, Mexico). 5. P. potosi male holotype (Nuevo Leon, Mexico).

Figures 6-10. 6. P. ambigua, right lateral view of male genital capsule, aedeagus removed. 7. P. syracosia, lateral view of right valve. 8. P. fallaciosa, lateral view of right valve. 9. P. sonorosa, lateral view of right valve. 10. P. potosi, lateral view of right valve.

Figures 11-15. Dorsal view of uncus (setae omitted). 11. P. ambigua. 12. P. syracosia. 13. P. fallaciosa. 14. P. potosi. 15. P. sonorosa.

Figures 16-20. Left lateral view of aedeagus, with fully inflated vesica. 16. P. ambigua. 17. P. syracosia. 18. P. fallaciosa. 19. P. potosi. 20. P. sonorosa.

Figures 21-24. Ventral view of female 8th sternite and bursa copulatrix (corpus bursae on left, bulla seminalis on right). 21. P. ambigua. 22. P. sonorosa. 23. P. syracosia. 24. P. fallaciosa.