^m^Sm^S^Sm 



sssm 



St 



III I,M;TIN :i1. t'MTKI' MA IKS NAIIONAI, .MISi;";.M. 



I'ltili'ssor iJiiinl lirsl iviK-luMl tlif roiicliisictii lli:i( llic ciiily stiiyo of 

 this species is a Siretloii, iiii<l lie siis|»e('te«l on lluK ;i<r«'()iiiil tliiit tlii' 

 Siriiloii iiir.ilriinns of llie valley ot' Mexico is the luiva of an niilviiown 

 species of Aim1>1\ sioina. I.oiijr al'leiwanls Pro!'. AM;;iiste Diiiiieril 

 ri!cei\c(l some laiva' ol'tlie .1. tifiriniim iVoin Mexico and ol»s(!ive<l their 



III,. I: rphoscs in the reptih' honse of tlie .lanliii des IMantcs of I'aris. 



lie siippttsed the species to Ix'the Sirnhm mcrini ii it in, hni I showi-d 

 that it was liie Ainhlijslitmii liiiriiiiiiii {'' iiiaforliiiin^'), alter an examina- 

 tion of sjiecimeiis sent l»y liim t(» me to riiiladelphia.* Since then 

 ridfessor .'\Iaish at New Haven, and .Madame Clianvin in Switzerland, 

 have observed the iiiclam Mjtliosis ol the same species. I'rofessor I)u- 

 meiil also showed that il can reprodncc while still hianchiferoiis. 



JSiirilon iiic.rindiinii \\'a'^\. {Aiiihli/sfoiiiti iiiixintniim Cope) inhaltits 

 Lakes ("halco and .\ocliimilc<», in thexalleyof Mexico. Its metamor- 

 phosis has never iieeii oltserscd, l»nt il is asserted by I. iM. N'elasco to 

 lake place. It is readily distiiijiiiished from the larva of the Aiiihfi/ 

 stoiiiii liiiiinuin by its color. Il is of a piiikisli tiiay, and is covered 

 with imiiK'roiis small ronnd, «liisky spots, rather closely placed. While 

 neaily related to the larva of the .1. tii/rlitinii, il is clearly a ditVereiit 

 form. Should il piove to be the case thai il does not niider.uo a mela 

 inoiphosis, the ^cniis Sired(»n, of which it is the type, niiisl be retained. 

 A second species, the .S'. iluiin'rili, has been described by l)ii;;<'\s from 

 Lake Tatzciiaor in the Stale of (inanajnalo. lis color is uniform. 



r 



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.Imliliii^loiiiii hiininiiii (iiiiii. 

 i;ksi;i;vi: skuiks 



;i 



l.iii'.llll.V. 



will II 

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I'liini » liiiin II iri\ I il 



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 null. 



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Dclruit, Miili A. Sa;;ii 



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Wi li-li I (My liiw.i M;i\ Jl, |H7h I'lini Alilliili 



Nnillinii lllihi.i- ■ ' i; K.iiiiirnll. 



W,.-l Niiiihlh 1.1, III .. ill, 



('Iiiiiii;ii. Ill Sept 7. 1X77 I Swiiiiv 



KilL'iliilil. S. (■ Apr. — , 1^7l) 



Wilwtii I'ily, Iiiw.i 



I'dii Kipliv. Minn 



Ni» Vi.rk' 



Inilipriiilino'. Mil . . ' 



KiK-iilKilli', Ky 



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Saint I is. Mo 



I.akr Kiuiiiilo. < 'hi 



Iiiialiiia. 



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K.HHlr, W is 



('nlilnilills. llliiii 



Niw Mi\iiii 



I'lPil I'liiiin. \. Mr\ 



Dr. .I.(i ( iiiiiiir 



Ilr riiiiM. II.W.Iil. 

 Or. Ii. V. Sliiiiiiai'il .. 

 I! Ki'iiiiii'iiit 



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I'll. IS !•. r.aiiil 



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Null las, N. Ml v .. Hi i ' (1 Vrw In 1 1 



liiMiilnCaiiiin, .\iiz liin.i.il W K M .\iii\ 



Aii/<piia , |8;i .1 M l;„i|,.r 



l''orl Kcviiiilils A. ('li>iii;li 



I.iiiil W'. r, Caijiriilii I 



S. \ . 



I'inl lili-s, N Mix .. ' Or.S W riav\ li.nl, r ■ \ ' 



I'liit liinlnn, Mil !(,. K V ||.,m|,.„ . 



laniaiilipaN Mrs |i, i, A K.hvanls. f S A ' 



I'liiii iililio^ |'|lil,ii|rl|.|iiii .\. ;|(liiii\ , i-J.",> 



Ali'iilii 



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Ilii 



III! 



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 Oil. 

 III. 

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III. 

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