Insect (from Fiji)

[immadoit]

Hello!

My mother lives in Fiji and is trying to grow tomato plants in a greenhouse. She's recently been having problems with this particular insect, though. They eat at the flowers at the base and kill the flowers off, making them fall off of the plant, so that the plants aren't able to produce any tomatoes.

I've attached a couple of her pictures, but these insects are incredibly small, and my mom isn't the best at handling her phone camera. She describes them as being a cross between a grasshopper and a mosquito, but they're very small.

I've shown her some pictures of both rice bugs and aphids because that's what these look most like to me, but nothing is confirmed. She says the rice bugs look very similar but there are still differences. Pictures of aphids throw her off because there are so many different kinds that all look really different, but several of them looked the same. She says that her particular pests have brown lines on their wings that aren't showing up too well in the pictures she took.

So I'm kind of almost convinced that these might be a type of aphid, but they haven't really responded to treatments that aphids are supposed to respond to (like dish soap diluted in water, although this might just be because my mom is not putting enough dish soap into the water).

I'm just kind of hoping to get more confirmation from someone who knows better.

Thanks in advance!