Spodoptera picta Guérin-Meneville 1830

Spodoptera picta (Guerin-Meneville)
Figs. 43, 48, 117, 278, 328, 358, 390, 422, 454, 504-506, 538
Phalaena festiva Donovan 1805: pi. 36, fig. 1 [Preoccupied, junior primary homonym of Phalaena festiva Cramer 1775.
Folia picta Guerin-Meneville in Duperrey 1831: pi. 19, fig. 7; 1838: 285.
Calogramma festiva; Walker 1856: 198; Hampson 1909: 239; Warren in Seitz 1914b: 319.
Spodoptera picta; Sugi 1982: 763; Holloway 1979: 416; Holloway 1989: 138; Poole 1989: 925; Edwards 1996: Diagnosis. — Similar to no other species of Spodoptera. Forewing ground color cream; irregular patch of rose scales from oblique ground color band to postmedian line between costa and R vein (Fig. 278). Hind wing completely white. Male genitalia similar to S. littoralis, but coremata shorter in S. picta (compare Figs. 326 and 328). Female genitalia similar to S. litura, but V-shaped notch on distal margin of ventral plate of ostium bursa shallower in S. picta (compare Figs. 453 and 454). Description. Adult Male. — Head: Basal segment of labial palpus rufous surrounded by cream scales; median segment mixed with black and brown scales in basal half, cream apically to cream variably mixed with rufous and black scales; apical segment cream mixed with rufous scales. Frons with short scales cream; long scales reddish orange and cream; lateral spots at eye
margin absent; vertex cream and reddish orange. Antenna filiform; scape cream; flagellum cream.
Thorax: Patagium cream with basal and subapical band orange. Tegula orange and cream. Mesothorax orange anteriorly, cream posteriorly. Underside of thorax white. Prothoracic femur rufous; tibia with lateral scale tufts not extending beyond first tarsal segment, cream and fuscous, subapical spot absent; tarsal segments cream. Mesothoracic femur cream; tibia cream and rufous, inner spur less than twice length of outer spur, spurs completely scaled; tarsal segments cream, rufous at base of segment 1. Meta thoracic femur cream and rufous; tibia cream and rufous; tarsal segments cream.
Forewing: Length, 18-19 mm; ground color cream; basal line absent; R vein not a contrasting color; basal scale patch between R and Cu veins absent; basal half circle scale patch below Cu vein cream broadly bordered by black; antemedial line black and white, indistinct; claviform spot absent; basal scale patch absent; gray patch covering anal cell and half of cell CuA2 absent; oblique brown mark from fifth outer marginal spot to vein CuA2 absent; curved white line from antemedial line to postmedial line absent; orbicular spot an oblique ground color band extending from costa to below Cu vein with a thin oblique black line between veins R and Cu; reniform spot an irregular patch of rose scales from oblique ground color band to postmedian line between costa and R vein, between R and CuAl veins scattered patches of black scales, irregular patches of rose scales between veins CuA2 and posterior margin; white scales along Cu vein and bases of M3 and CuAl veins absent; postmedial line irregular with black patches at costa to middle then becoming rose to posterior margin; postmedian band undifferentiated; black scale patches in middle of cells M2 to CuA2 in postmedian area; subterminal line absent; apex lacking a white patch; spots along outer margin absent; fringe cream. Underside ground color cream with scattered pale gray patches; outer margin spots absent; reniform spot patch of rose scales corresponding to similar patch on upper side of forewing.
Hindwing: Ground color white; immaculate; fringe white. Underside ground color white; costal cells C and Sc cream speckled with rufous scales (can be mixed with a few gray scales); outer margin spots absent; no spot on underside.
Abdomen: Dorsum cream; venter cream (rufous
scales can be present); disto-lateral dark rufous spots on sternites; 8th tergite with spiculate patches absent on caudal margin.
Genitalia: Uncus curved in apical half; slender, gradually narrowing toward pointed apex; setae absent or few. Scaphium elongate, weakly developed. Tegumen lacking a pair of projecting arms on upper third. Costa slightly bent at middle
at base of costa on inner edge; perpendicular to costa of valve. Cucullus apex truncate; not produced. Anellifer with lightly sclerotized plate bearing setae present. Ampulla elongate, slightly curved with a decurved apex; extending to just below apex of valve (Figs. 328, 358). Clasper proper absent. Clavus a minute round projection. Sacculus widest at one-fourth its length, tapering distally; apex truncate. Valvula wider than valve; well differentiated from valve, apex free; apex truncate; indentation large, ventral margin round. Coremata elongate, more than 0.5 length of valve; in form of a double lobe. Juxta a narrow rectangular band, median process narrow at base and elongate, ventral margin narrowly concave. Anellus with minute granules. Vinculum U-shaped with parallel arms and a robust base. Aedoeagus straight; coecum equal in diameter to shaft; patch of spines absent on apex of membranous sheath surrounding aedoeagus. Vesica curving ventrally; moderately elongate, 0.75-1.0 length of aedoeagus; apicobasal cornutal patch a wide ribbon; length moderate, extending to before middle of vesica; cornuti in form of minute flat granules; lateral cornutal patch an elongate elliptical area; a mixture of small spines distally and large spines apically; dense cornutal patch subapical on vesica; distal cornutus a bulbous elliptical plate, apex pointed.
Adult Female. — Essentially as described for male except:
Forewing: Length, 20.5-22 mm.
Abdomen: Fine dense scales on 8th segment cream.
Genitalia: Ventral plate of ostium bursa with height greater than width; distal margin with a broad V-shaped notch; ventrolateral invaginated pocket of 8th sternite absent. Ductus bursae short (length less than twice width); completely sclerotized. Appendix bursae partially sclerotized. Corpus bursae bulbous, length less than twice width; striate convolutions. Signum at middle of corpus bursae; short, length less than 0.65 mm; almost vertical.
Larva. — See description, p. 112.
Type material. — Folia picta Guerin-Meneville. The type material was not located during this study and is considered lost. The neotype 8 [USNM, here designated] is labeled: Australia: Qld.; Kuranda;14 April 1980; G. F. Hevel & J. A. Fortin. SPOD 1402. The neotype is designated and labeled to ensure nomenclatural stability in this confusing group of species and is illustrated in Fig. 278. Type locality: Kuranda, Queensland, Australia.
Phalaena festiva Donovan.The type repository is unknown. Type locality: New South Wales, Australia.
Material Examined. — Specimens were examined from the following countries: American Samoa, Australia, Burma, China, Christmas Island, Fiji, India, Indonesia, Key Island, Malaysia, Maldive Islands, New Caledonia, Papua New Guinea, Philippines, Singapore, Solomon Islands, Sri Lanka, Taiwan, Vanuatu, Vulcan Islands, Western Samoa.
Distribution (Fig. 538). — S. picta is distributed from India east to China, Taiwan, and Japan, and south to the Philippines, Papua New Guinea, and Australia.

Spodoptera picta (Guerin-Meneville)
Figs. 504-506
Diagnosis. — This is a distinct larva with a wide yellow middorsal stripe. It also has large segmental spots on abdominal segment 1, small black lunules on segments 2-6, larger lunules on segment 7, and spots on segment 8 similar in size to those on segment 1.
Description of preserved specimens. — Head: Color yellowish brown; faintly reticulate; frons yellowish brown; cutting edge of mandible serrate; P2 setae farther apart than PI setae; ratio ecdysial line: frons height, averages greater than 0.88. Thorax: Pronotum with dorsolateral stripe conspicuous, either solid or consisting of closely spaced spots and dashes; middorsal stripe wider than dorsolateral stripe. Mesothorax segmental spot absent; with lateral dark spot absent. Metathorax with segmental spot absent; white spot absent; lateral dark spot absent. Abdomen: Body smooth; setal pinacula minute. Middorsal stripe large, subequal to dorsolateral stripe. Segmental spots equal in size on abdominal segments 1 and 8, smaller on 2-6; wide on segments 1 and 8, narrow on 2-6, located just above dorsolateral stripe; lacking contrasting marks; spot on 8th abdominal segment larger than on mesothorax. Segment 1 with lateral dark spot present. Segments 2-6 with lateral dark spots in spiracular band present. Spiracular band reticulate; seg-
ments 1-6 in spiracular band without white or light colored spot caudal to spiracle. Spiracles with black border and brown center; not stalked. Subspiracular stripe continuous through abdominal segment 1 . Crochets uniordinal; total number on one side of body greater than 107 (range: 150174; average: 162; n=2).
Color description. — Head brown. Pronotal shield black, with middorsal stripe yellow, dorsolateral stripe white. Ground color gray. Middorsal stripe wide, yellow. Dorsolateral band with white streak. Dorsolateral stripe white. Lateral band pale. Spiracular band dark (Sevastopulo 1939b, Gardner 1941).
Plant hosts. — The hosts of S. picta seem to be restricted to Liliaceae. Sevastopulo (1939b) listed Liliaceae as a host. Holloway (1979) refers to two hosts, Crinum asiaticum L. and C. pedonculatum R. Br., both in the Liliaceae. Crossley (1998) considered S. picta a minor pest of gardens in Australia, feeding on amaryllis (Hippeastrum sp., Liliaceae).

Spodoptera picta, the lily caterpillar, is a moth of the family Noctuidae. It was described by Félix Édouard Guérin-Méneville in 1838. It is found in from India, South-east Asia and Japan through Indonesia and the western part of South Pacific ocean to Fiji.

Spodoptera picta là một loài bướm đêm trong họ Noctuidae.