Subject:  What is this
Geographic location of the bug:  Montreal , Quebec
Date: 06/11/2018
Time: 07:06 PM EDT
Your letter to the bugman:  We found this on a diseased Maple tree in our backyard.  Can you identify what this is
How you want your letter signed:  Alan Kelly

Giant Ichneumon Ovipositing

Dear Alan,
This is a female Giant Ichneumon in the genus
Megarhyssa, probably Megarhyssa macrurus which is pictured on BugGuide, and she is ovipositing or laying eggs.  Since you have indicated that your maple tree is diseased, it is most likely infested by various wood boring insects, including the larvae of the Pigeon Horntail, the prey of the Giant Ichneumon.  The female Giant Ichneumon senses the presence of the larval Pigeon Horntail burrowing in the wood, and she inserts her long ovipositor so she can lay an egg on or near the larval Horntail.  When the egg hatches, the larval Giant Ichneumon will parasitize the Pigeon Horntail larva.  The Giant Ichneumon will not harm your tree.

What's That Bug? does not endorse extermination

Subject:  Identify
Geographic location of the bug:  Virginia
Date: 06/11/2018
Time: 04:05 PM EDT
Your letter to the bugman:  Need help figuring out what this is
How you want your letter signed:  William clarke

Giant Stonefly

Dear William,
This is a Giant Stonefly in the genus
Pteronarcys and here is a BugGuide image for comparison.  Also known as Salmonflies, Giant Stoneflies have aquatic larvae known as naiads that are found in freshwater streams, so we suspect you live near a creek or river.

Subject:  Please identify this insect
Geographic location of the bug:  Conroe, TX
Date: 06/11/2018
Time: 03:07 PM EDT
Your letter to the bugman:  Can you please tell me what this is?  Thank you for your time and assistance.
How you want your letter signed:  Mary Luc

Female Cockroach with Ootheca

Dear Mary Luc,
This is a female Cockroach (sorry we can’t determine the species from this camera angle) and she is expelling an ootheca or egg case.

What's That Bug? does not endorse extermination

Subject:  Bombus ternarius
Geographic location of the bug:  North-West BC, Canada
Date: 06/11/2018
Time: 03:14 PM EDT
Your letter to the bugman:  Looks like a Bombus ternarius to me, but I’m new to bumble bees.
How you want your letter signed:  Shawn C

Tri-Colored Bumble Bee

Dear Shawn,
Based on this BugGuide image, we are in agreement that this is a Tri-Colored Bumble Bee,
Bombus ternarius.  According to BugGuide:  “First abdominal segment with yellow hair, segments 2 & 3 reddish-orange, segments 5 and 6 and facial hairs black.”

Subject:  What is this caterpillar?
Geographic location of the bug:  Winnipeg, Manitoba, Canada
Date: 06/10/2018
Time: 08:30 PM EDT
Your letter to the bugman:  I found this caterpillar climbing on my front door yesterday. (picture 1)  Today I caught him j’ing (picture 2) He has now turned into a chrysalis.   (picture 3)  There is a second one of the same sort at the bottom of my door.  He is green with a dark head and has barbed setae or spikes.   I would like to know what kind of caterpillar he is and what he will become.  I hope you can help me.  Thanks!
How you want your letter signed:  Sherrie

Compton Tortoiseshell Caterpillar

Dear Sherrie,
How lucky are you???? We have identified your caterpillar as a Compton Tortoiseshell Caterpillar,
Nymphalis l-album, thanks to images posted to BugGuide.  The caterpillar and chrysalis are described on BugGuide,:  “Larva: body speckled and spotted white on pale green, yellow and brown, or blackish, with several rows of branched, usually black spines; head also bears many short spines, with one pair larger and branched near the tip. This is the only Nymphalis species with the pair of branched head horns. Polygonia larvae are similar, though usually with different markings.  Pupae: similar to other Nymphalis and to Aglais species, with two points on head end and two rows of conical projections mostly arranged along the dorsum of abdomen + thorax; plus, one prominent point on the mid-dorsum and more along the sides of the thorax.”  According to BugGuide, the range is:  “southeastern Alaska and across Canada south of the tundra, south in the west to Montana and Wyoming, south in the east to North Carolina and Missouri known to wander; has been recorded as far south as California and Florida, and as far north as Baker Lake, north of treeline in Nunavut.”   The chrysalis of the Compton Tortoiseshell is pictured on the John Fowler website.  If your luck continues and you are able to witness the emergence of the adult Compton Tortoiseshell, we would love to have you send us the images.

Pre-Pupal Compton Tortoiseshell Caterpillar

Dear Daniel,
Thank you so much!  I was curious to see what kind of caterpillar it was.  The caterpillar crawled up my front door and decided that was the place to stay.  Ot was interesting to see him in the j.  An hour and a half later he was a chrysalis.  Only assuming it was that long because that is when I came back from shopping.  I now have another one below my front door, so I have the opportunity to witness two emerge.  I hope they do it while I am watching.  Do you know how long they will stay in the chrysalis before they emerge?
Thank you again,

Hi again Sherrie,
The actual eclosion date, the day the adult emerges from the chrysalis, may vary depending upon temperature and other weather conditions, but according to BBC:  “The chrysalis stage varies between species but is usually around two weeks, whilst the caterpillar inside is undergoes metamorphosis into a butterfly. In order to emerge, they need to be out of direct sunlight, at around 25 degrees and in relatively high humidity.”  According to Woodland Trust:  “Conversion to a butterfly takes place inside the chrysalis – this process can take several weeks.”  According to Sciencing:  “Most butterflies take about 10 to 14 days to emerge from their chrysalises.”  Many chrysalides change color just prior to pupation, so that might be a hint that eclosion is near.

Chrysalis of a Compton Tortoiseshell

Subject:  South America Longhorns bug
Geographic location of the bug:  Abejorral, Colombia
Date: 06/11/2018
Time: 12:06 PM EDT
Your letter to the bugman:  I found this bug on the front of my car in the middle of a plantation of avocado.
How you want your letter signed:  Claudia

Longicorn:  Trachyderes species

Dear Claudia,
We believe we have identified your Longicorn as
Trachyderes succinctus thanks to images on iNaturalist and Cerambycoidea.  According to iNaturalist:  “This species is present in Argentina, Bolivia, Brasil, Costa Rica, Panama, Colombia, Ecuador, Nicaragus, Paraguay, Peru, Venezuela, Suriname, French Guiana, Brazil, Bolivia and Antilles.” 

Update:  Thanks to an update from Cesar Crash, we believe Trachyderes hermani which is pictured on the New World Cerambycidae Catalog is a better species identification.