Immature Stages of the Brazilian Crescent Butterfly Orfilia Liriope
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Neotropical Entomology ISSN: 1519-566X journal homepage: www.scielo.br/ne SYSTEMATICS, MORPHOLOGY AND PHYSIOLOGY Immature Stages of the Brazilian Crescent Butterfly Ortilia liriope (Cramer) (Lepidoptera: Nymphalidae) PL Silva1, NP Oliveira1, EP Barbosa2, Y Okada1, LA Kaminski2, AVL Freitas2 1Lab de Zoologia, Programa de Biologia, Instituto de Ciências da Educação, Univ Federal do Oeste do Pará, Santarém, PA, Brasil 2Depto de Biologia Animal, Instituto de Biologia, Univ Estadual de Campinas, Campinas, SP, Brasil Keywords Abstract Acanthaceae, gregarious caterpillar, Justicia, Melitaeini, Phyciodina Correspondence We provide the first information on the morphologyOrtilia liriope of the immature André V L Freitas, Depto de Biologia Animal, stages (egg, larva, and pupa), oviposition and larval behavior, and Instituto de Biologia, Univ Estadual de host plant, for the BrazilianO liriope crescent butterfly (Cramer), Campinas, CP 6109, 13083-970 Campinas, SP, Brasil, [email protected] based on material from Santarém Municipality, Pará State, Northern Brazil. Females of . lay eggs in clusters. AfterJusticia hatching, Edited by Marcelo Duarte – MZ/USP larvae eat the exochorion and remain gregarious in all but the final instar. The host plant recorded in the study site is sp. Received 07 May 2010 and accepted 13 (Acanthaceae). Despite the scarcity of data on the immatureO stages liriope of October 2010 Neotropical Melitaeini, we can already say that some morphological and behavioral traits observed in the immature stages of . are also present in all known genera in this tribe. Introduction subtribe, suchet al as descriptions of early stages and host plants, are knownOrtilia for only a small fraction of the species Melitaeini, one of the six recognized tribes of the (Beccaloni 2008). Nymphalinae (Nymphalidae), is a relatively small group of The genus Higgins was erected based on etca. al250 butterfly species present only in the Holarctic and poorly defined characters of male genitalia, and Neotropical regionset al(Wahlberg & Freitas 2007, Wahlberg originally included 10 species of typically orange-black 2009).et al The group is considered monophyletic melitaeines (Higgins 1981), which later were reorganized (Zimmermann 1999, Freitas & Brown 2004, to representOrtilia nine species by Lamas (2004). Recently, a Wahlberg 2005), and the few clear synapomorphies molecular study by Wahlberg & Freitas (2007) showed consist of characters of male and female genitalia (Higgins that is in fact a polyphyletic assemblage, with 1981, Kons 2000). their members distributed among threeOrtilia distinct (sensu clades The MelitaeiniChlosyne are divided into five distinctGnathotriche clades,- within the Phyciodina. Thus far, immatures have not been including the subtribes Euphydryina, Melitaeina etand al described in detail for any etspecies al of Lamas Phyciodina, the -group, and the 2004),Ortilia and liriope information on host plant use remains scarce group (Wahlberg & Zimmermmann 2000, Wahlberg and uncertain (BeccaloniOrtilia gentina 2008, Neild 2008). Mazia 2005). General information about Melitaeini is not evenly amazonica (Cramer) (Fig 1a), the type species of the distributed among the five clades, being clearly biased genus, together with Higgins and towards the temperate Euphydryina and Melitaeina (Bates) (Wahlberg & Freitas 2007) form a species (Wahlberg & Freitas 2007). clearly distinct clade. The species occurs in northern Phyciodina is composed mainly of tropical species, and South America, in Amazonia, usually in association with alone comprises almost half of all species of Melitaeini. open sunny areas, such as tree gaps, forest edges and 322In spite of that, data on basic natural history for thisNeotrop secondary Entomol 40(3): forests. 322-327 The © present2011 Sociedade paper Entomológica describes the do early Brasil Silva et al Immature Stages of Ortilia liriope a 9.0 mm b 1.5 mm c 0.6 mm d 2.0 mm e 1.0 mm f 2.5 mm g 4.0 mm 4.5 mm 4.5 mm h i Ortilia liriope Fig 1 Life stages of . a) adult female; b) egg cluster (dorsal view); c) egg cluster in lateral view (white arrow indicating pointy apex); d) first instar; e) second instar; f) third instar; g) fourth instar; h) fifth instar (lateral view); i) fifth instar (latero-dorsal 1.0 mm 3.0 mm 3.0 mm 3.0 mm view); J) two prepupae; j k l m k) pupa (dorsal view); l) pupa (lateral view); m) pupa (ventral view). O liriope Justicia stages of . , compares the immatures with those of plant sp. ad(Acanthaceae), libitum and reared in laboratoryJusticia other known Melitaeini, and briefly discusses host plant brasilianafollowing standard procedures for larval rearing (Freitas use within the Phyciodina. 1991) with food using another species, Material and Methods , that was well accepted by the larvae. Data were taken on behavior® and development times for all stages. O liriope Measurements and general morphology were assessed using a Leica MZ7.5 stereomicroscope equipped with a Adults and immature of . were collected near micrometric scale. Egg size was measured as height and the Urumari stream (2°27’S, 54°41’W), in the suburban width. The size of the larval head capsule was measured area of Santarém Municipality, Pará State, Northern as the distance between the most external stemma (as in Brazil, in 2009-2010. Descriptions of immature stages Freitas & Brown 2008). Head and body chaetotaxy were areNeotrop based Entomol on egg 40(3): clusters 322-327 collected © 2011 Sociedadein nature Entomológica on the host do Brasildescribed following Stehr (1987). Immatures were fixed323 Immature Stages of Ortilia liriope Silva et al in Kahle solution (Triplehorn & Johnson 2005); all adults, brown, without horns or spines. Body translucent, with preserved larvae, head capsules, and pupal skins were dark green gut contents clearly visible; legs, prolegs and deposited at Unicamp (Museu de Zoologia, ZUEC). anal plate light beige; setae relatively long (ratio between Results setal length/segment height c. 1.2); setae above spiracles are black, and light below. Frontal head chaetotaxy and Natural history lateral body chaetotaxy are shown in Figs 2 and 3a, respectively; in the body the ventral group of setae is O liriope Justicia Secondpresent, instar but is (Fig not 1e). shown. Duration: 3-5 days (n = 30). O liriope At the study site, . was observed using sp. Head capsule width 0.40-0.48 mm as its larval host plant. Females of . laid eggs in (n = 10). Maximum body length 6.0 mm. Head capsule clusters of about 50-60 eggs (n = 2). Oviposition occurred light brown, with conspicuous long brown setae and with the female sitting on the upper surface of the leaf without horns or spines. Body dark green dorsally, white and curling the abdomen around the leaf edge so that ventrally; covered with short light brown scoli from T2 eggs were deposited under the leaf. through A10; T1 without scoli, but bearing long black After hatching, larvae ate the exochorion and remain setae; legs brown, prolegs translucent, anal plate light aggregated until the final instar. Most larvae passed brown. Scoli distribution remains the same until the final through five instars, but some have an extra, sixth stadium Thirdinstar instar (Fig 3b). (Fig Duration: 1f). 2-3 days (n = 30). (18 out of 157 individuals). Final instars dispersed to feed solitarily until pupation. In the first two instars, larvae Head capsule width 0.56-0.68 mm (n fed by scraping the under surface of the leaf, but in later = 10). Maximum body length 11 mm. Head capsule orange- instars they fed on the whole leaf, leaving only the largest brown with black stemmata. Body dark greenish brown veins. Prepupae hung from a support by the anal prolegs, dorsally, light cream ventrally on abdominal segments; scoli curling the body in a ring with the head almost touching dark brown, except for the subspiracular abdominal series, theDescription apex of the of abdomenimmature (Fig stages 1j). which is light cream; legs brown, prolegs translucent, anal Egg (Fig 1b-c). Fourthplate brown. instar Duration:(Fig 1g). 3-4 days (n = 30). Width (diameter) 0.46-0.56 mm, height Head capsule width 1.00-1.30 mm 0.54-0.64 mm (n = 10). Light yellow, remaining unchanged (n = 10). Maximum body length 16 mm. Head capsule color until hatching. Pear-shaped with a conspicuously pointy and shape as in previous instar. Body dark brown dorsally, apex; with 19-21 poorly defined vertical ridges and light cream ventrally in abdominal segments; scoli dark numerous inconspicuous horizontal ridges. Duration: brown, except for the subspiracular abdominal series, Firstfive days instar (n (Figs = 15). 1d, 2, 3a). which is light cream; legs dark brown, prolegs translucent, Fifthanal plate(last) brown. instar Duration:(Figs 1h-i). four days (n = 30). Head capsule width 0.30 mm (n = 10). Maximum body length 4.0 mm. Head capsule dark Head capsule width 1.90- MDa MD1 2.04 mm (n = 6). Maximum body length 19 mm. Head Pb capsule reddish brown with black stemmata; shape as P2 in previous instar. Body dark brown dorsally, light cream ventrally in abdominal segments; scoli dark brown, except for the subspiracular abdominal series, which is Pa AFa P1 light cream; legs dark brown, prolegs translucent, anal Aa AF2 L1 plate brown. Duration: six days (n = 30). Some larvae Fa AF1 A3 can have six instars; in these larvae, the fifth instar can Sb S2 reach 19 mm in length, but with the head capsule more F1 A2 S1 similar in size to those of the fourth instar (head width A1 1.20 mm – 1.48 mm). Prepupa without marked changes C2 C1 Pupain coloration (Figs 1k-m). (Fig 1j). Length 11-12 mm (n = 14). Light brown with sparse darker marks all over the wing caps and Ortilia liriope abdomen. General profile elongated; ocular caps short and pointed like little cat ears. A series of short subdorsal Fig 2 . Frontal head chaetotaxy of first instar (right pointed knobs from T2 through A7 segments as follows: side:324 setae nomenclature; left side: pore nomenclature).