Locusts and Darkness
(כג) לֹֽא־רָא֞וּ אִ֣ישׁ אֶת־אָחִ֗יו וְלֹא־קָ֛מוּ אִ֥ישׁ מִתַּחְתָּ֖יו שְׁלֹ֣שֶׁת יָמִ֑ים וּֽלְכָל־בְּנֵ֧י יִשְׂרָאֵ֛ל הָ֥יָה א֖וֹר בְּמוֹשְׁבֹתָֽם׃
(23) People could not see one another, and for three days no one could get up from where he was; but all the Israelites enjoyed light in their dwellings.
עברית

http://www.annafineart.com/portfolio/parshat-bo-locusts-and-darkness/

The locusts are made of collaged images of the sfirot (ten attributes of the kaballah) printed on vellum, referring to angels.