Thank you, I will try that as well this time, but for I believe most people the Jet Moth came out to a NOX, but if the Violas works to, that's good news too.

HI! I discovered the six magic plants of isola but i can't complete my _bug_ collection, how can I get this six bugs?
rare Jet Moth
uncommon Mystic Scarab
rare Golden Beetle
uncommon Glassy Dragonfly
rare Tahitian Spider
rare Golden Spider
Help me please!

Being patient and also... patient!!
and you may look at the PT guide

You can check the whole guide, with no jumps is the Plant Tycoon Guide area. This link should also help as it is the whole guide.

I just caught that one! It's my 47th - one more to go! A couple of minutes later a second one appeared. It's like waiting for a bus - wait for ages then two come along together.

I had a Nox in flower, but no Violas.

Hi all!

Well, the following two insects,

common Shiny Blue Beetle, and
common Tiger Dragonfly

do not appear, ever, at all, period, when there are 15 empty pots, which leads me to believe that they require a special plant or foliage to be present for them to appear.

i would guess the common Tiger Dragonfly requires a Tigerfern but I do not have any proof of this. not being a common shiny blue beetle myself, i do not have any guesses as to what flower or foliage a common shiny blue beetle would find appealing.

so Deathwing - your work so far on this project has been exemplary, but your job is not 100% done as you may have thought.. you have two more to go

I'm "rooting" for you

Cheers,
-Borg

Dear Borg,

This is strange, I have always caught those to bugs before I even got to the last tier plants. (Tigerfern is a Tier 4) I have again been able to catch both of these bugs in my newly restarted games (Yes games) while only tier 1 foliage and flowers were out. Either with or without the fourpetal maple (a magic Plant). I have never said anything about catching bugs while all the pots where empty. If your able to catch them, I did not know that. But thanks Borg, I'll watch next time, while I'm playing.

My bugs collection is finish! The last one was this Jet Moth and it arrived as I had 2 Nox flowers (but no viola). I think it really prefers the Nox flower!

The common Tiger Dragonfly has a Tigerfern leaf in its collection bottle, so I'd hazard a guess that it likes Tigerferns.

The common Shiny Blue Beetle has a different leaf in its bottle, but I can't be sure what particular variety of foliage it is. It looks similar to that in the rare Shiny Flower Beetle's bottle. Those with better eyesight may be able to identify it.

8 hours of collecting data on 15 spotted tigerferns:

Bug # 1 Seen: 19 (6 %) common Blue Butterfly
Bug # 2 Seen: 26 (8 %) common Mission Blue Butterfly
Bug # 4 Seen: 17 (5 %) common Black Moth
Bug # 5 Seen: 4 (1 %) uncommon Pale Moth
Bug # 6 Seen: 3 (1 %) uncommon Lapis Butterfly
Bug # 7 Seen: 6 (2 %) uncommon Lemon Moth
Bug # 9 Seen: 5 (2 %) rare Plum Butterfly
Bug #10 Seen: 4 (1 %) rare Cherry Butterfly
Bug #13 Seen: 25 (8 %) common Green Beetle
Bug #14 Seen: 17 (5 %) common Brown Bug
Bug #15 Seen: 19 (6 %) common Ladybug
Bug #17 Seen: 4 (1 %) uncommon Hiding Beetle
Bug #18 Seen: 4 (1 %) uncommon Zebra Beetle
Bug #19 Seen: 7 (2 %) uncommon Cockroach
Bug #21 Seen: 2 (1 %) rare Ebony Scarab
Bug #22 Seen: 6 (2 %) rare Fire Scarab
Bug #25 Seen: 20 (6 %) common Blue Dragonfly
Bug #26 Seen: 17 (5 %) common Pink Dragonfly
Bug #28 Seen: 14 (4 %) common Emerald Dragonfly
Bug #29 Seen: 3 (1 %) uncommon Dart Dragonfly
Bug #30 Seen: 5 (2 %) uncommon Fragile Dragonfly
Bug #31 Seen: 5 (2 %) uncommon Ghost Dragonfly
Bug #33 Seen: 5 (2 %) rare Fire Dragonfly
Bug #35 Seen: 7 (2 %) rare Earth Dragonfly
Bug #38 Seen: 18 (6 %) common Yellow Spider
Bug #39 Seen: 26 (8 %) common Brown Spider
Bug #40 Seen: 15 (5 %) common Spotted Spider
Bug #41 Seen: 3 (1 %) uncommon Pearly Spider
Bug #42 Seen: 2 (1 %) uncommon Limelike Spider
Bug #44 Seen: 4 (1 %) uncommon Cricket Spider
Bug #45 Seen: 3 (1 %) rare Bumpy Spider
Bug #46 Seen: 1 (0 %) rare Jade Spider

Bug number 27, the common Tiger Dragonfly, is conspicuously absent. One thought is that it is attracted to Tigerferns but needs a higher tier of flower than spotted. A better guess is that it is not attracted to Tigerferns, since DW reports always collecting this insect in new games, well before tier 4 is ever reached.

No progress on the common shiny blue beetle either. So basically, no progress

So it still remains a mystery.

addendum: with the following group of starter plants:
spotted reptans
bluestar maranta
citrus maranta
citrus maple
citrus astera
fourpetal ball cactus
citrus ball cactus
spotted ball cactus
jalapa ball cactus
both the common shiny blue beetle and the common Tiger Dragonfly made an appearance. just have to figure out which foliage or flower is responsible.