Utetheisa henrii, Roque-Albelo & B. Landry, 2009

Roque-Albelo, Lazaro & Landry, Bernard, 2009, Two new species of Utetheisa Hübner (Lepidoptera, Noctuidae, Arctiinae) from the Galapagos Islands, Ecuador, ZooKeys 21 (2), pp. 55-72 : 57-58

Key to the Galapagos species of Utetheisa based on external characters

1 Forewing and thorax whitish pink with pink along forewing costa and outer margin, and black dots on thorax, on forewing costa and outer margin........ ........................................................................................... U. ornatrix (L.)

– Forewing variable shades of brown, usually with some darker brown markings ............................................................................................ 2

2 Forewing buff brown, usually with contrasting markings, at least with two dots at end of discal cell, the dorsal one sometimes obscured by conspicuous dark brown shading; hindwing with dark brown bar at end of discal cell, often with darker shading along costa and apex; male antenna strongly bipectinate ........................................................................ U. perryi Hayes

– Forewing various shades of greyish brown (Figs 1–4), rarely with two dots at end of cell; hindwing without dark brown bar at end of discal cell and without shading on costa and apex, but with shading usually along outer margin; male antenna bipectinate, with length of pectination variable .................... 3

3 Forewing background (Fig. 2) colour light greyish brown, with contrasting variable pattern usually with outwardly slanted subapical thick line from dorsum changing into series of spots at CuA1, rarely with two dots at end of cell, usually with postbasal, median, and postmedian lines also present and slanted toward apex from dorsal margin, forewing maximal length 15 mm; hindwing usually with darker broad band along outer margin, sometimes with faint bar at end of discal cell; male antenna with bipectination of medium length (Fig. 5) .................................... U. galapagensis (Wallengren)

7 8

Figures 5–8. Male antenna Galapagos Utetheisa species 5 U. galapagensis (Wallengren) 6 U. henrii sp. n. 7 U. connerorum sp. n. 8 U. devriesi Hayes.

– Forewing background colour light to dark greyish brown, usually with diffuse pattern of usually complete transverse lines mostly medially and subapically, sometimes pattern absent, lines slanted towards apex or not, never with dots at end of discal cell, forewing length variable; hindwing often with darker broad band along outer margin, never with faint bar at end of discal cell; male antenna with bipectination length variable.................................................. 4

4 Forewing pattern (Fig. 3) dark greyish brown, with darker median and postmedian lines at right angle from dorsal margin, with darker terminal 1/5 entirely darker, forewing length 14–16 mm in males; male antenna (Fig. 6) shortly bipectinate ............................................................... U. henrii sp. n.

– Forewing pattern light to dark greyish brown, with darker lines generally slanted towards apex from dorsal margin, with terminal 1/5 darker or not, forewing length 13.5–20.5 mm in males; male antenna bipectination of medium length or long.................................................................................... 5

5 Forewing pattern light greyish brown, with transverse lines consisting of median band thicker on dorsal margin and slightly slanted toward apex, and subapical line delimiting darker terminal 1/5, forewing length 17–20.5 mm in males; male antenna (Fig. 8) with bipectination of medium length........... ......................................................................................... U. devriesi Hayes

– Forewing pattern (Fig. 4) dark greyish brown, with usually four transverse lines slanted towards apex from dorsal margin postbasally, sub- and postmedially, and subapically, pattern sometimes obscure or absent, forewing length 12–15 mm in males; male antenna (Fig. 7) strongly bipectinate ................... ................................................................................... U. connerorum sp. n.