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ee t tw 7'rans. tepid. Soc:. Jqpan 58 (2): 238-244, March 2007

Pupa of Japanese Arctiidae () Part II *

Masanao NAKAMuRA

Ubumi 497I-1, Yuto-cho, I{amamatu, Shizuoka Pref., 431-O102 Japan

Abstract Pupae of 1 1 genera of Arctiinae in Arctiidae from Japan are described. This subfennily is divided inte two tribes, Arctiini and Spilosomini, nnd the fomier is constituted i'rom two groups arid the lattcrfrom three groups based un the pupa] characters. The pupae of some genera of the Spitarctia group excepting Chionarctia are indistinguishable, and some gencra are tentatively corn- bLned with thc Lem},ra in this paper.

Key words Arctlidae. Arctiinae, pupa, classificution, descripLion, Japan.

Description of the genus

Subfamily Arctiinae

[[ribe Arctiini GroupI

Rbyparia HUbner

Fusiform. Frons with a pair of small tubercles not connected on the base; labial palpus minute; maxi]la reaching nine-tenths distance to caudal margin of wing, cephalic margin steeply oblique; antenna extending far beyond tip of prothoracic leg and to slightly short of tipof maxilta; suture between pro- and mesothorax attached to antenna at a point of suture restricting proximal margin of mesothoracic leg; spiracular callosity distinct; hindwing hid- den under forewing at cephalic margin of 4th abdominal segment; prothoracic leg not so ta- pered towards extremity, ending seven-tenths distance to caudal mar-gin of wing; mesotho- racic lcgs extending to tip of maxil]a and never meeting on meson at extremity; metatho- racic leg visible but never connected with maxilla; 5th-7th abdominal seginents with flange plate;tively 2nd-3rd abdominal spiracles fu11y visib]e; 8th spiracle rudimentary; cremaster rela- large, never bifid, with one pair of long and three pairs of short hooked setae.

Setae arranged around the scars of larval verrucae. Prothorax with Dl, SDI and XD, meso- and metathorax with D] and SDI each; lst abdominal segment with Dl, D2 and SDI; 2nd-3rd segments with Dl, D2, SDI and Ll; 4th segment with Dl, D2, SDI, Ll and L2; 5th-7th segments with Dl, D2, SDI, Ll, L2, SV and V.

Species examined, R. puilpurata (Linnaeus), 20 mm, brown.

Diacrisia Htibner Frons Fusiform. with apair of small tubercles not connected on the base; labial palpus con- cealed; maxil]a reaching nine-tenths distance to caudal margin of wing, cephalic margin gently oblique; antenna extending to tip of prothoracic leg and to slightly short of tip of

*Taxonomic studies on the pupae ufJapanese Lepidoptera-Hetcrecera XIV (2).

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Pupae of Japanese Arctiidae, II 239

maxilla; thorax wrinkled; suture between pro- and mesothorax attached to antenna at a point of suture restricting proximal margin of prothoracic leg; spiracular callosity indistinct; hindwing hidden under forewing on spiracular level of 4th abdominal segment; prothoracic leg tapered towards extremity, ending seven-tenths distance to caudal margin of wing; mesothoracic legs extending just beyond tip of maxilla and meeting on meson at extremity; metathoracic leg visjble and connected with maxilla; abdomen sparsely scattered with micro punctures; 5th-7th abdominal segments with flange plate; 2nd-3rd abdomina] spira- cles visible; 8th spiracle rudimentary; cremaster relative large, never bifid, with one pair of long and seven pairs of short hooked setae.

Species examined. D. irene (Butler). 13 mm, reddish brown.

Grammia quenseli Paykull seeins to be related to the genus Diacrisia Htibner according to the description of Pato6ka and Tur6aiii (2005),

Group II

Arctia Schrank

Longitudinally fusiform, Labial palpus appearing small; maxilla reaching six-sevenths dis- tance to caudal margin of wing, cephalic margin gently obljque; antenna ending slightly be- fore tjp of mesothoracic leg; thorax striated; suture between pro- and mesothorax attached to antenna at a point of suture restricting proximal margin of prothoracic leg; prothoracic spiracular slit indistinct; hindwing hidden under fbrewing at cephalic margin of 4th abdomi- nal segment; prothoracic leg reaching five-eighths distance to caudal margin of wing, taper- ing to extremity; mesothoracic leg ending just before tip of maxilla; metathoracic leg ap- pcaring minute and never connected with maxilla; abdomen sparsely scattered with micro punctures; 5th-7th abdominal segments with flange plate: 2nd-3rd abdominal spiracles half visible; 8th spiracle vestigial; cremaster large, bifid, with ten pairs of hooked setae on each parLSpecies

examined. A, cqja (Linnaeus). 25 mm, dark reddish brown.

Riryparioides Butler

Fusiform. Frons with a pair of tubercles connected on the base; labial palpus appearing minute; maxilla reaching four-fifths distance to caudal margin of wing, cepha]ic margjn gently oblique; antenna ending just befbre tip of maxilla; suture between pro- and mesotho- rax attached to antenna at a point of suture restricting proximal margin of prothoracic leg; prothoracic spiracular slit appearing large; hindwing hidden under forewing at cephalic margin of 4th abdominal segment; prothoracic leg ending slightly before tip of antenna, ta- pered toward extremity; mesothoracic lcgs extending sli.uhtly beyond tip of maxilla, meet- ing on meson at extremity; metathoracic leg visible but never connected with maxilla; 5th-7th abdominal segments with flange plate; 2nd-3rd abdominal spiracles fu11y visible, 8th spiracle vestigi'al; cremaster relatively large, bifurcate, with four pairs of shert hooked setae on each part,

Prothorax with D1 , SD1 and secondary XD setae.

Species examined, R. metetkana (Lederer), 17 mm, blackish brown with reddish brown setae.Parasemia

Htibner

Fusiform. Frons with a pair of small tubercles never connected on base; labial palpus ap- pearing minute; maxilla extending seven-tenths distance to caudal margin of wing, cephalic

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240 Masanao NAKAMuRA

4

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一 8

墜 恥 眠 丶 黨 麟甜 》 ノ 蹴Ψ 瞬 斎 錚

圭一 of arctiids ’ 畿 ’ Figs 8．Pupae 、1．Rh ＞paria purpurata （Lillnaeus），a ： cremaster ，2．Diacrisia〃ene

Butler a： cremaster 3 Rhyparioides metelkana Lederer a ： crcmaster 4 P α 广asernia （ ）， ． ， （ ）， ． ． ptantaginis（Linnaeus）， a ： cremaster ． 5． Epatolmis caesarea （Goeze ）， a ： crenlaster ． 6， A 厂ctia c μノa （Lillnaeus）， a ： cremaster ．7． Phrag〃iatobia amurensis Seit7， a ： creinaster ，8， α 副 （刑 α o ∫ 齠 η 5 ’βη ∫ （Wa 】k。r）．

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Pupae ol'Japanese Arctiidae, II 241

9 11

a

.L-,/// t ,}tM twa

Figs 9-]1. Pupae of arctiids, 9. Lem.w'a inaequalis (Butler), di', a: cremaster. 10. L. b(flih'ciata CBut]er), \, ai cremaster. 11. Cremaster of Chionarctia nivea (M6n6tries).

margin gently oblique; antenna ending just before tip of mesothoracic leg; suture between pro- and mesothorax attached to antenna at a point of suture restricting proximal margin of mesothQracic leg; prothoracic spiracular slit indistinct; hindwing hidden under forcwing at cephalic margin of 4th abdominal segment; prothoracic leg ending just before tip of maxil- la; mesothoracic legs reaching fOur-fifths distance to caudal margin of wing, distal portion meeting on meson; metathoracic leg visible but never connected with maxilla; 2nd-3rd ab- dominal spiracles ha]fhidden under wing; 8th spiracle vestigial; cremaster relatively targe, bifid on caudul ponion, with four pairs of short hooked setae on each part.

Specieg exarnined. P. ptantaginis (Linnaeus). 14 mm, brown,

Elr,atolmis Eichwald

Fusifbrm. Frons without tubercle; ]abial palpus appearing minute; rnaxilla reaching three- fifths distance to caudal margin of wing, cephalic margin steeply oblique; antenna extend- ing to slightly short of tip of mesothoracic leg; suture between pro- and mesothorax at- tached to antenna at slightly cephalic point of suture restricting proximal margin of protho- racic leg; spiraular callosity visible to a small extent; hindwing hidden under forewing at cephalic margin of 4th abdominal segment; prethoracic leg ending three-eighths distance to caudal margin of wing; mesothoracic legs reaching fifth-sixths distance to caudal margin of wing, meeting on meson in distal ponion; metathoracic Ieg invisible; 5th-7th abdominal segments with fiange p]ate; 2nd-3rd abdominal spiracles fu1ly visible, 8th spiracle rudimen- tary; cremaster small, bifid with seven pairs of anchor like setae,

Species examined, E, caesarea (Goeze), 12 mm, blackish brown.

Uyphotuia auZica Linnaeus should be placed near this genus according te the description of Pato6ka and Tur66ni (2005),

[bribe Spilosomini GroupI

Phragmatobia Stephens

Fusiform. Frons slightly protuberant; labial palpus appearing minute; maxilla extending

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242 Masanae NAKivvluRA

four-fifths distance to caudal margin of wing, cephalic margin gently oblique; antenna end- ing at the level of tip of maxilla; suture between pro- and mesothorax attached to ant,enna at a point of suture restricting proximal margin of mesothoracic leg; spiracular callosity indis- tinct; hindwing hidden under fbrewing at cephalic margin of 4th abdominal segment; pro- thoracic leg ending slightly before tjp of maxilla, tapered toward extremity; mesothoracic legs extending four-fifths distance to caudal margin of wing, meeting on meson in distal portion; metathoracic leg jnvisible; 2nd-3rd abdominal spiracles visible completely; 8th spiracle vestigial; cremaster minute, with three pairs of Iong and three pairs of short hooked setae.

Species examined. P. amLfrensis Seitz. Yellowish brown, 14 mm,

Pljushch and Dolinskaya (2003) showed a figure of the proximal ends of pro- and mesotho- racic legs, but this figure may be error.

Group II

Creatonotos HUbner

Fusiform, Labial palpus appearing minute; maxilla ending five-ninths distance to caudal margin of wing, cephalic margin gently oblique; antenna extending to slightly short of tip of prothoracic leg; suture between pro- and mesothorax attached to antenna at a point of suture restricting proxima] margin of prothoracic leg; prothoracic spiracular slit indistinct; hind- wing hidden under forewing at cephalic margin of 4th abdominal segment; prothoracic lcg reaching close to tip of maxilla; mesothoracic legs extending seven-ninths distance to cau- dal margin of wing, mceting on meson in distal ponion; metathoracic leg visible; 5th-7th 'fully abdominal segments with flange plate; 2nd-3rd abdominal spiracles vjsible, 8th spira- cle vcstigial; cremaster absent; cremaster setae anchor-like, consisting of six pairs.

Setae present on 8th abdominal segment.

Species examined. C, t,unsiens (Walker). 17 mm, dark reddish brown,

Group III

byphantria Hanis

Fusiform. Labial palpus appearing minute; maxilla extending two-thirds distance to caudal margin of wing, cephalic margin gently oblique; antenna broad in male and slender in fe- male, ending just before tip of mesothoracic leg; suture between pro- and mesothorax at- tached to antenna at a point of suture restricting proximal margin of prothoracic leg; hind- wing hidden under forewing at cephalic margin of 4th abdominal segment; prothoracic leg reaching to slightly short of tip of maxilla; mesothoracic legs extending five-sixths distance to caudal margin of wing, meeting on meson on apical portion; metathoracic leg appearing Iarge; 5th-7th abdominal segments with fiange plate; 2nd-3rd abdominal spiracle fu11y visi- ble; 8th spiracle vestigial; cremaster broad, with four pairs of long and two pairs of short anchor-like setae.

Setae present en 8th abdominal segment.

Species examined, H, cunea (Drury). 13 mm, dark reddish brown.

This species was described by Niimura (1949) and Hattori and lto (1973),

Lenryra Walker (=S?)itarctia Butler)

Fusifbrm. Labial palpus appearing minute; maxilla reaching three-fifths to two-thirds dis-

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243 Pupae ofJapancse Arctiidae, II

tance to caudal margin of wing, cephalic margin gently oblique; antenna broad in male and slender in female, ending slightly before tip of mesothoracic leg; suture between pro- and mesothorax attached to antenna at a point of suture restri ¢ ting proximal margin of protho- racic leg; prothoracic spiracular slit scarce]y recognized; hindwing hidden under forewing at cephalic margin of 4th abdominal segment; prothoracic leg ending just or slightly before tip of maxilla; mesothoracic legs extending four-fifths distance to caudal margin of wing, meeting on meson in distal portion; metathoracic leg appearing minute; 5th-7th abdominal segments with flange plate; 2nd-3rd abdominal spiracles fully visible; 8th spiracle rudimen- tary; cremaster small, bifid with six pairs of anchor-like setae.

Setae present on 8th abdominal segment.

Key to the species

1. Maxilla reaching two-thirds distance te caudal margin of wing ,,...... ,,,..,,..,,..., 2 - MaxMa reaching three- or four-fifths distance to caudal margin of wing...... ,....,,,,,,..., 4 2. Prothoracic leg almost reaching tjp of maxi1]a; 15 mm, reddish brown ...... -..."HH.."..,..H,.,,,.."---",.-...... """"HH.""-"-,,,,-",-H....".inaequalis(Butler) - Prothoracic leg ending slightly before tip of maxilla ...... ,,,,,,...,.....,,...... ,,,,, 3 3. Maxilla ending slightly before tip of antenna; 16 mm, reddish brown ."""",""..,"..."".."".H".H...."..,".,,--."",,,,,,,,...,,,-,,,""",,,,,.,,,,,....,vilemani(Rothschi]d) - Maxilla almost reaching tip of antenna; 20 mm, reddish brown ..,,..,,. hijirsciata (Butler) 4. Maxil]a reaching three-fifths distance to caudal margin of wing; 17 mm, reddish brown...... ,,,....,,...... ,,,,,...... ,,,..,,,.,,,,,,....seriatopunctata(Motschulsky) - Maxilla reaching four-fifths distance to caudal margin of wing ...... ,....,,...... ,...,,.,,,,, 5 5, Maxilla ending slightly beyond tip of prothoracic leg; six pairs of cremaster sctae same length; 15 mm, reddish brown...... ,,,,,,,.,,,,...,,... giuminiveta (Inoue) - Maxillae ending just beyond tip of prothoracic leg; one pair of cremaster setae long and five pairs short; 13 mm, reddi'sh brown ...... ,,,.,.,,,.flainmeola (Moore)

Chionarctia Koda

Alried to Lem>)Ki Walker but differs in fbllowing points. Maxilla extending beyond tip of antenna and to a point slightly before caudal margin of wing; antenna reaching level of tip of prothoracic leg; prothoracic Ieg reaching fbur-fifths distance to caudal margin of wing; mesothoracic legs extending to slightly short of caudal rnargin of wing, meeting on meson at distal end and touching metathoracic leg; cremaster pentagonal, with sixteen pairs of an- chor-like setae.

Setae present on 8th abdominal segment,

Species examined. C. nivea (M6netries), 23 mm, dark brown,

Pljushch and Dolinskaya (2003) i]lustrated a figure showing slightly different cremaster and cremaster setae from this species. This figure probably represents a separate species.

Acknowledgements

The author wish to express his hearty thanks to Mrs K, Nishihara, Nagoya, and Mr M. Yamamoto, Kanagawa, for giving valuable materials.

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244 Masanao NAKAMuR ，N

References

Dubatolov， V ， V ．，1996． A list of the Arctiinac of the terTitory of 亡he former U ． S ． S ， R ．（Lcpidoptera， 厂 Arctiidae）． Neue e ’π ． A α σ 加 ．37；39−87．

HaUori 1 and Y Ito 1973 Status of b［ack −headed − ， ，． 、 ． ， and red headed types of H ： ρh （傭 厂’ご犀 cune ‘‘ 〔Drury） （Lepidoptera， Arctiidae）II． External characters of the two typcs a 皿 d their hybridg ． Appl ． Ent． Zoo ’，8： 172−182 ．

Koda ， N ．，1987． A generic classification of the subfamHy Arctiinae of しhe Palaoarcdc and Oriental regions − − based on the male and female genitalia（Lepidoptcla． Afctiidae）．7ンδG α 38； 153 237 ，39 ： 1 79． Niimura ， T ．，1949．遅｝蜘 副 α α ’nea 。r the Fall Webwo ， as a new comer to Japan．跚 ， natn ． Sci， Mus ． − − 25： 1 13，p］s 1 2 ． Pato6ka J，and M ．Tur甑 ni 2005 ， ， ． Lepidoprera Pu ρae ，ご 翩 厂α ’E ” 厂o ρean Species．542 ，321 pp， Apollo Books， Stenstrup． Pljushch ， L G 、 and I． V ． Dolinskaya，2003 ． Morphological char 盆cters of the pupae of some Tiger Mot 翫s （Lcpidptera， Arctiidae）of far eas ［ Russia． Vest． zoot ，37179−84．

摘 要

口本 産 ヒ ト リ ガ 科 の 蛹 （鱗翅 日）II ヒ トリ ガ亜 科 （中村 正 直）

本文 で は 目本 産 ヒ トリガ 科 の うち Arctiinaeに属 す る 11 属 の 蛹 を記載 し ，そ の 形態 に 基 づ き分類 し た ， そ の 結果本 亜 科 は Arctiinjと Spilosominiの 2 族 に 分割 さ れ た ， ’ 一 Arctiinaeの うち Lem ）ra とSl）iiarctiaとの 蛹 は 全 く区 別 出来 な か っ た の で ，本文 で は仮 に こ れ ら を合

こ さ せ る と に し た ．しか し検 した も の の なか で ChionarcliaKoda の み は 尾刺 毛 に お い て 明 らかに異 な っ て い た の で 別属 と して 扱 っ た が ，今後 な お 多 くの 種 を 検 した 上 で 再 検討 す る必 要が認め られ る ，

（Accepted April 24，2006〕

Published by the Lcpidoptero］ogica ／Society of Japan， − 5 20 Motoyokoyalna 2 （） − 凱 ， ， Hachioji，Toky ，】92 0063 J pan

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