The full version's official profile declared that she is in fact female. However, with lack of male presence in the series she is sometimes converted to male in R-rated fan-fiction, with both writer and readers being fully aware that she is officially a girl. Additionally, she is often made fun of in fan comics as being a crossdresser--either as a girl that dresses like a boy or actually being a boy who's just pretending to be a girl. Wriggle became more popular because of being depicted as a male character while pairing with any various female characters.
Due to insects being near the very bottom of the food chain, Wriggle is sometimes portrayed as "food" in some fan comics. Especially food for Yamame Kurodani, a spider youkai, or for Mystia Lorelei, a night sparrow (who in turn is food for Yuyuko Saigyouji, a glutton).
In fan works, she is often seen with other lower level, childish characters such as Cirno, Rumia, and Mystia. She is occasionally called or labelled "G" (short for gokiburi, or cockroach).
A common nickname for Wriggle is 「りぐるん」 or "Rigurun" similar in style to "Yukarin" for "Yukari."
Pairings of her with Yuuka have become common. This could be because bugs pollinate flowers, they have similar hairstyles, or maybe ANGELTYPE is to blame.