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Index of Subjects --Apple-Mail-74-392829893 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Hi Lance, Adult lily beetles (Lilioceris lilii) are actually known to feed on a huge range of host plants (I have records from 46 species), including Solanum dulcamara, Solanum laciniatum, and Solanum tuberosum, although only plants in the genera Lilium and Fritillaria are the normal hosts on which beetles can complete their reproductive cycle. Adult beetles are aposematic (with warning colours to warn potential predators) and are believed to have compounds that cause them to be distasteful to predators. It is thought that they may sequester compounds from Asiatic lily hosts since these plants have chemical compounds which, in turn, make them distasteful. Could lily beetles do so from Solanum dulcamara? No one knows. If anyone is really interested in this topic there is an excellent recent paper available: Ernst, C., Cappuccino, N, and Arnason, J.T. 2007. Potential novel hosts for the lily leaf beetle Lilioceris lilii Scopoli (Coleoptera: Chrysomelidae) in eastern North America. Ecological Entomology, 32: 45-52. Cheers! Chris On 19-Jul-07, at 11:26 AM, Laviolette, Lance (EXP) wrote: > Hi everyone, > > Since beetles have been a hot topic on the list I thought I'd pass > this email from the eastern Ontario naturelist along. The sender > lives in the Ottawa area. > > All the best, > > Lance > > =================================================================== > I have not posted mention of lily beetles this week, but there has > been some scientific interest in a phenomenon noted here recently. > We have had a very heavy infestation this year, to the point where > Linda and I have not been able to squish them in sufficient numbers > to keep them from eating virtually all the leaves of the lilies up > against the house. > > About ten days ago, I noted them eating a vine growing out from > under a spruce tree ca 5m from the lilies. The vine was > subsequently identified by Fred as solanum dulcamara, or > nightshade, a toxic invasive. I passed this information on to > Professor Naomi Cappuccino from Carleton University, who two years > ago had visited us and who had one of her grad students study the > beetles as a masters degree thesis, with many specimens coming from > our garden that summer. This morning, Naomi and another student, > Tonya, visited to take pictures and specimens. > > This is interesting to me because it may be a case of the beetle > taking up toxins from the nightshade to use for its own defences; > alternatively, it may be that the beetles are desperate for a food > source now that the lilies have been laid waste, although no other > species other than nightshade seems to have attracted the attention > of the beetles to this extent. > > Douglas Thompson > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. _. Christopher Majka - Nova Scotia Museum of Natural History 1747 Summer Street, Halifax, Nova Scotia, Canada B3H 3A6 (902) 424-6435 Email <c.majka@ns.sympatico.ca> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. _. --Apple-Mail-74-392829893 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 <HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; = -khtml-line-break: after-white-space; ">Hi Lance,<DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV><SPAN = class=3D"Apple-style-span">Adult lily beetles (<I>Lilioceris lilii</I>) = are=A0actually known to feed on a huge range of host plants (I have = records from 46 species), including <I>Solanum dulcamara, Solanum = laciniatum,</I> and <I>Solanum tuberosum</I>, although only plants in = the genera <I>Lilium</I> and <I>Fritillaria</I> are the=A0normal hosts = on which beetles can complete their reproductive = cycle.</SPAN></DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV><SPAN = class=3D"Apple-style-span">Adult beetles are aposematic (with warning = colours to warn potential predators) and are believed to have=A0compounds = that cause them to be distasteful to predators. It is thought that they = may sequester compounds from Asiatic lily hosts since these plants have = chemical=A0compounds which, in turn, make them distasteful. Could lily = beetles do so from=A0<I>Solanum dulcamara</I>? No one = knows.</SPAN></DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>If anyone is really = interested in this topic there is an excellent recent paper = available:</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV><SPAN = class=3D"Apple-style-span">Ernst, C., Cappuccino, N, and Arnason, J.T. = 2007. Potential novel hosts for the lily leaf beetle <I>Lilioceris lilii = </I>Scopoli (Coleoptera: Chrysomelidae) in eastern North America. = Ecological Entomology, 32: 45-52.</SPAN></DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>Cheers!</DIV><DIV><BR = class=3D"khtml-block-placeholder"></DIV><DIV>Chris</DIV><DIV><BR><DIV><DIV= >On 19-Jul-07, at 11:26 AM, Laviolette, Lance (EXP) wrote:</DIV><BR = class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><SPAN = class=3D"Apple-style-span" style=3D"border-collapse: separate; = border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Times New = Roman; font-size: 12px; font-style: normal; font-variant: normal; = font-weight: normal; letter-spacing: normal; line-height: normal; = text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: = 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; = white-space: normal; widows: 2; word-spacing: 0px; "><DIV dir=3D"ltr" = align=3D"left"><FONT face=3D"Arial" color=3D"#0000ff" size=3D"2"><SPAN = class=3D"770042314-19072007"><SPAN class=3D"Apple-style-span" = style=3D"color: rgb(0, 0, 255); font-family: Arial; font-size: 10px; = text-align: -khtml-left; ">Hi everyone,</SPAN></SPAN></FONT></DIV><DIV = dir=3D"ltr" align=3D"left"><FONT face=3D"Arial" color=3D"#0000ff" = size=3D"2"><SPAN class=3D"770042314-19072007"></SPAN></FONT><SPAN = class=3D"Apple-style-span" style=3D"text-align: -khtml-left; = ">=A0</SPAN></DIV><DIV dir=3D"ltr" align=3D"left"><FONT face=3D"Arial" = color=3D"#0000ff" size=3D"2"><SPAN class=3D"770042314-19072007"><SPAN = class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: = Arial; font-size: 10px; text-align: -khtml-left; ">Since beetles have = been a hot topic on the list=A0I thought I'd pass this email from the = eastern Ontario naturelist along. The sender lives in the Ottawa = area.</SPAN></SPAN></FONT></DIV><DIV dir=3D"ltr" align=3D"left"><FONT = face=3D"Arial" color=3D"#0000ff" size=3D"2"><SPAN = class=3D"770042314-19072007"></SPAN></FONT><SPAN = class=3D"Apple-style-span" style=3D"text-align: -khtml-left; = ">=A0</SPAN></DIV><DIV dir=3D"ltr" align=3D"left"><FONT face=3D"Arial" = color=3D"#0000ff" size=3D"2"><SPAN class=3D"770042314-19072007"><SPAN = class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: = Arial; font-size: 10px; text-align: -khtml-left; ">All the = best,</SPAN></SPAN></FONT></DIV><DIV dir=3D"ltr" align=3D"left"><FONT = face=3D"Arial" color=3D"#0000ff" size=3D"2"><SPAN = class=3D"770042314-19072007"></SPAN></FONT><SPAN = class=3D"Apple-style-span" style=3D"text-align: -khtml-left; = ">=A0</SPAN></DIV><DIV dir=3D"ltr" align=3D"left"><FONT face=3D"Arial" = color=3D"#0000ff" size=3D"2"><SPAN class=3D"770042314-19072007"><SPAN = class=3D"Apple-style-span" style=3D"color: rgb(0, 0, 255); font-family: = Arial; font-size: 10px; text-align: -khtml-left; = ">Lance</SPAN></SPAN></FONT></DIV><BR><DIV class=3D"OutlookMessageHeader" = lang=3D"en-us" dir=3D"ltr" align=3D"left"><SPAN = class=3D"770042314-19072007"></SPAN><FONT face=3D"Arial"><FONT = color=3D"#0000ff"><FONT size=3D"2"><SPAN class=3D"Apple-style-span" = style=3D"color: rgb(0, 0, 255); font-family: Arial; font-size: 10px; = text-align: -khtml-left; ">=3D</SPAN><SPAN = class=3D"770042314-19072007"><SPAN class=3D"Apple-style-span" = style=3D"color: rgb(0, 0, 255); font-family: Arial; font-size: 10px; = text-align: -khtml-left; = ">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=A0</SPAN></SPAN></FONT= ></FONT></FONT><BR style=3D"text-align: -khtml-left; = "></DIV><DIV></DIV><DIV><FONT face=3D"Arial" size=3D"2"><SPAN = class=3D"Apple-style-span" style=3D"font-family: Arial; font-size: 10px; = ">I have not posted mention of lily beetles this week, but there has = been some scientific interest in a phenomenon noted here recently.=A0 We = have had a very heavy infestation this year, to the point where Linda = and I have not been able to squish them in sufficient numbers=A0to keep = them from eating virtually all the leaves of the lilies up against the = house.</SPAN></FONT></DIV><DIV><FONT face=3D"Arial" = size=3D"2"></FONT>=A0</DIV><DIV><FONT face=3D"Arial" size=3D"2"><SPAN = class=3D"Apple-style-span" style=3D"font-family: Arial; font-size: 10px; = ">About ten days ago, I noted them eating a vine growing out from under = a spruce tree ca 5m from the lilies.=A0 The vine was</SPAN></FONT><FONT = face=3D"Arial" size=3D"2"><SPAN class=3D"Apple-style-span" = style=3D"font-family: Arial; font-size: 10px; "> subsequently identified = by Fred as </SPAN><EM style=3D"font-family: Arial; font-size: 10px; = font-style: italic; "><SPAN class=3D"Apple-style-span" = style=3D"font-family: Arial; font-size: 10px; font-style: italic; = ">solanum dulcamara</SPAN></EM><SPAN class=3D"Apple-style-span" = style=3D"font-family: Arial; font-size: 10px; ">, or nightshade, a toxic = invasive.=A0 I passed this information on to Professor Naomi Cappuccino = from Carleton University, who two years ago had visited us and who had = one of her grad students study the beetles as a masters degree thesis, = with many specimens=A0coming from our garden that summer.=A0 This = morning, Naomi and=A0another student, Tonya, visited to take pictures = and specimens.</SPAN></FONT></DIV><DIV><FONT face=3D"Arial" = size=3D"2"></FONT>=A0</DIV><DIV><FONT face=3D"Arial" size=3D"2"><SPAN = class=3D"Apple-style-span" style=3D"font-family: Arial; font-size: 10px; = ">This is interesting to me because it may be a case of the beetle = taking up toxins from the nightshade to use for its own defences; = alternatively, it may be that the beetles are desperate for a food = source now that the lilies have been laid waste, although no other = species other than nightshade seems to have attracted the attention of = the beetles to this extent.</SPAN></FONT></DIV><DIV><FONT face=3D"Arial" = size=3D"2"></FONT>=A0</DIV><DIV><FONT face=3D"Arial" size=3D"2"><SPAN = class=3D"Apple-style-span" style=3D"font-family: Arial; font-size: 10px; = ">Douglas Thompson</SPAN></FONT>=A0</DIV><BR = class=3D"Apple-interchange-newline"></SPAN></BLOCKQUOTE></DIV><BR><DIV> = <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" = size=3D"3" style=3D"font: 12.0px = Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._= ._._._.</FONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT = face=3D"Times" size=3D"3" style=3D"font: 12.0px Times">Christopher Majka = - Nova Scotia Museum of Natural History</FONT></P> <P style=3D"margin: = 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" style=3D"font: = 12.0px Times">1747 Summer Street, Halifax, Nova Scotia, Canada<SPAN = class=3D"Apple-converted-space">=A0 </SPAN>B3H 3A6</FONT></P> <P = style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" = style=3D"font: 12.0px Times">(902) 424-6435 <SPAN = class=3D"Apple-converted-space">=A0 </SPAN>Email <<A = href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>></F= ONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times"= size=3D"3" style=3D"font: 12.0px = Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._= ._._._.</FONT></P> </DIV><BR></DIV></BODY></HTML>= --Apple-Mail-74-392829893--
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