[NatureNS] Pelecinid wasp & common nighthawks

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From: "James W. Wolford" <jimwolford@eastlink.ca>
Date: Tue, 13 Aug 2013 01:41:37 -0300
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James, your wasp is Pelecinus polyturator, in family Pelecinidae, and  
it is predatory on grubs of June beetles in the ground -- hence the  
need for the long abdomen, which is inserted vertically into the  
ground to probe for grubs, on which eggs are laid, then hatch into  
wasp grubs, which kill and eat the June beetle grub.  Entomologists  
have a strange concept of what "parasitism" is: most wasp "parasites"  
are in fact predators with very specific diets, and the outcome of  
the interrelationship is always death of the "host".  In my mind,  
this is a very poorly evolved "parasite" that invariably kills its  
host.  This Pelecinid wasp is very interesting in that nearly all or  
indeed all individuals are female, so that eggs are produced by  
parthenogenesis.  See Googled link below:

Species Pelecinus polyturator - Pelecinid Wasp - BugGuide.Net  
bugguide.net/node/view/6945 - Cached - Similar -- 10 Sep 2004 ... May  
be a complex of species. A number of color variants have been  
described, especially in the tropics, but most sources say that the  
family is ...

However, different books and researchers have widely divergent views  
of the definitions of the various categories of SYMBIOSIS -- as long  
as the relationship is intimate, you can be safe when you use  
"symbiosis", although some folks use "symbiotic" as a synonym of  
mutualism, in which both partners benefit from a relationship.

Cheers from Jim in Wolfville.


Begin forwarded message:

> From: James Hirtle <jrhbirder@hotmail.com>
> Date: August 12, 2013 10:49:00 PM ADT
> To: Naturens Naturens <naturens@chebucto.ns.ca>
> Subject: [NatureNS] Common Nighthawks and parasitic wasp
> Reply-To: naturens@chebucto.ns.ca
>
>
> This is the second year in a row now that I've not seen a common  
> nighthawk during the Lunenburg Folk Harbour Festival.  At the  
> Sunday gospel concert there were four bald eagles cruising low over  
> the tent area numerous times.  Especially during opportune times of  
> certain gospel songs.  Whether this means something devine or not I  
> don't know.  Maybe they were checking out all of the small dogs and  
> babies around.  I don't ever remember seeing this in 27 years that  
> I've been going there.  There were also two ospreys.  I as well saw  
> a northern harrier shortly after, so maybe a mini raptor migration?
>
> Today on the way to work I saw a icthea (spelling I know is wrong)  
> parasitic wasp.  The one with the abdomen that is thin and about  
> two and a half inches long.  The wasp is all black.
>
> James R. Hirtle
> Bridgewater
>


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<html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webk=
it-line-break: after-white-space; ">
 James, your wasp is Pelecinus polyturator, in family Pelecinidae, and it i=
s predatory on grubs of June beetles in the ground -- hence the need for th=
e long abdomen, which is inserted vertically into the ground to probe for g=
rubs, on which eggs are laid, then hatch into wasp grubs, which kill and ea=
t the June beetle grub. &nbsp;Entomologists have a strange concept of what =
"parasitism" is: most wasp "parasites" are in fact predators with very spec=
ific diets, and the outcome of the interrelationship is always death of the=
 "host". &nbsp;In my mind, this is a very poorly evolved "parasite" that in=
variably kills its host. &nbsp;This Pelecinid wasp is very interesting in t=
hat nearly all or indeed all individuals are female, so that eggs are produ=
ced by parthenogenesis. &nbsp;See Googled link below:<div><br></div><div><p=
 style=3D"margin: 0.0px 0.0px 23.0px 0.0px; line-height: 19.0px"><font face=
=3D"Arial" size=3D"5" color=3D"#152cc5" style=3D"font: 16.0px Arial; color:=
 #152cc5"><a href=3D"http://www.google.ca/url?q=3Dhttp://bugguide.net/node/=
view/6945&amp;sa=3DU&amp;ei=3DfbgJUv-pBsKz2gWt0oHwBw&amp;ved=3D0CCYQFjAF&am=
p;usg=3DAFQjCNHqMaWnqyRQZmjjF1pF56MfTjPeAg"><font color=3D"red"><b>MailScan=
ner has detected a possible fraud attempt from "www.google.ca" claiming to =
be</b></font> Species Pelecinus polyturator - <b>Pelecinid Wasp</b> - BugGu=
ide.Net</a>&nbsp;</font><span class=3D"Apple-style-span" style=3D"line-heig=
ht: 15px; "><font face=3D"Arial" size=3D"4" color=3D"#46953a" style=3D"font=
: 13.0px Arial; color: #46953a">bugguide.net/node/view/6945</font><font fac=
e=3D"Arial" size=3D"4" color=3D"#222222" style=3D"font: 13.0px Arial; color=
: #222222"> - <a href=3D"http://www.google.ca/url?q=3Dhttp://webcache.googl=
eusercontent.com/search%3Fhl%3Den-CA%26q%3Dcache:vLDGuBQ-EbsJ:http://buggui=
de.net/node/view/6945%252Bpelecinid%2Bwasp%26gbv%3D2%26ct%3Dclnk&amp;sa=3DU=
&amp;ei=3DfbgJUv-pBsKz2gWt0oHwBw&amp;ved=3D0CCcQIDAF&amp;usg=3DAFQjCNGie4Kn=
V6kqSycpILVtS7YCfG0CQQ"><font color=3D"#152cc5" style=3D"color: #152cc5">Ca=
ched</font></a> - <font color=3D"#152cc5" style=3D"color: #152cc5"><a href=
=3D"http://www.google.ca/search?hl=3Den-CA&amp;gbv=3D2&amp;q=3Drelated:bugg=
uide.net/node/view/6945+pelecinid+wasp&amp;tbo=3D1&amp;sa=3DX&amp;ei=3DfbgJ=
Uv-pBsKz2gWt0oHwBw&amp;ved=3D0CCgQHzAF">Similar</a>&nbsp;--&nbsp;</font></f=
ont></span><span class=3D"Apple-style-span" style=3D"line-height: normal; c=
olor: rgb(34, 34, 34); font-family: Arial; font-size: 13px; ">10 Sep 2004 <=
b>...</b> May be a complex of species. A number of color variants have been=
 described, especially in the tropics, but most sources say that the family=
 is&nbsp;<b>...</b></span></p><p style=3D"margin: 0.0px 0.0px 23.0px 0.0px;=
 line-height: 19.0px"><span class=3D"Apple-style-span" style=3D"line-height=
: normal; color: rgb(34, 34, 34); font-family: Arial; font-size: 13px; "><b=
></b></span><span class=3D"Apple-style-span" style=3D"line-height: normal; =
">However, different books and researchers have widely divergent views of t=
he definitions of the various categories of SYMBIOSIS -- as long as the rel=
ationship is intimate, you can be safe when you use "symbiosis", although s=
ome folks use "symbiotic" as a synonym of mutualism, in which both partners=
 benefit from a relationship.</span></p><p style=3D"margin: 0.0px 0.0px 23.=
0px 0.0px; line-height: 19.0px"><span class=3D"Apple-style-span" style=3D"l=
ine-height: normal; "></span>Cheers from Jim in Wolfville.</p><div><div><di=
v><br><div>Begin forwarded message:</div><br class=3D"Apple-interchange-new=
line"><blockquote type=3D"cite"><div style=3D"margin-top: 0px; margin-right=
: 0px; margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helvetica" siz=
e=3D"3" color=3D"#000000" style=3D"font: 12.0px Helvetica; color: #000000">=
<b>From: </b></font><font face=3D"Helvetica" size=3D"3" style=3D"font: 12.0=
px Helvetica">James Hirtle &lt;<a href=3D"mailto:jrhbirder@hotmail.com">jrh=
birder@hotmail.com</a>&gt;</font></div><div style=3D"margin-top: 0px; margi=
n-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face=3D"Helveti=
ca" size=3D"3" color=3D"#000000" style=3D"font: 12.0px Helvetica; color: #0=
00000"><b>Date: </b></font><font face=3D"Helvetica" size=3D"3" style=3D"fon=
t: 12.0px Helvetica">August 12, 2013 10:49:00 PM ADT</font></div><div style=
=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0p=
x; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" style=3D"font: 1=
2.0px Helvetica; color: #000000"><b>To: </b></font><font face=3D"Helvetica"=
 size=3D"3" style=3D"font: 12.0px Helvetica">Naturens Naturens &lt;<a href=
=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</a>&gt;</font><=
/div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><font face=3D"Helvetica" size=3D"3" color=3D"#000000" s=
tyle=3D"font: 12.0px Helvetica; color: #000000"><b>Subject: </b></font><fon=
t face=3D"Helvetica" size=3D"3" style=3D"font: 12.0px Helvetica"><b>[Nature=
NS] Common Nighthawks and parasitic wasp</b></font></div><div style=3D"marg=
in-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><fo=
nt face=3D"Helvetica" size=3D"3" color=3D"#000000" style=3D"font: 12.0px He=
lvetica; color: #000000"><b>Reply-To: </b></font><font face=3D"Helvetica" s=
ize=3D"3" style=3D"font: 12.0px Helvetica"><a href=3D"mailto:naturens@chebu=
cto.ns.ca">naturens@chebucto.ns.ca</a></font></div><div style=3D"margin-top=
: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height:=
 14px; "><br></div> <span class=3D"Apple-style-span" style=3D"font-family: =
Calibri; font-size: 16px; "><div dir=3D"ltr"><br><font size=3D"6">This is t=
he second year in a row now that I've not seen a common nighthawk during th=
e Lunenburg Folk&nbsp;Harbour Festival.&nbsp;&nbsp;At the&nbsp;Sunday gospe=
l concert there were four bald eagles cruising low over the tent area&nbsp;=
numerous times.&nbsp; Especially during&nbsp;opportune times of certain gos=
pel songs.&nbsp; Whether this means something devine or not I don't know.&n=
bsp; Maybe they were checking out all of the small dogs and babies around.&=
nbsp; I don't ever remember seeing this in 27 years that I've been going th=
ere.&nbsp; There were also two ospreys.&nbsp; I as well saw a northern harr=
ier shortly after, so maybe a mini&nbsp;raptor migration?&nbsp; &nbsp;<br>&=
nbsp;<br>Today on the way to work I saw a icthea (spelling I know is wrong)=
 parasitic wasp.&nbsp; The one with the abdomen that is thin and about two =
and a half inches long.&nbsp; The wasp is all black.<br>&nbsp;<br>James R. =
Hirtle<br>Bridgewater<br id=3D"FontBreak"><br></font></div></span></blockqu=
ote></div><br></div></div></div></body></html>=

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