^a arbeh, Hb. ארבה ʾrbh, translated as Gk. ἀκρίς in Ex. 10:4, 12-14, 19, is the word for locust in the plague of locusts, and the word for locust in the narrative of John the Baptist in Mt. 3:4.

^b Joel 1:4 and 2:25 has ארבה, great locust [ἀκρίς, great locust]; ילק, young locust [βροῦχος, grasshopper]; חסיל, other locust [ἐρυσίβη, rust]; and גזם, locust swarm [κάμπη, caterpillar or silkworm].

^c Gk. βροῦχος. For Hb. ארבה ʾrbh [Wikipedia: arbeh -> brouchos]. Per the Suda On Line, locust; [meaning] the caterpillar; per LSJ, locust, or its wingless larva. Usually translates חסיל or ילק, grasshopper. (Arbeh also occurs: Ex. 10:4 [arkis], 12-14 [akris], 19 [akris]; Dt. 28:38 [akris]; Jdg. 6:5 [akris], 7:12 [akris]; 1 Kgs. 8:37 (LXX 3 Kgs. 8:37) [brouchos and erusibh]; 2 Chr. 6:28 [akris and brouchos]; Jb. 39:20 [no ref to locust in LXX)] Ps. 78:46 [erusibh and arkis], 105:34 [akris and brouchos], 109:23 [arkis]; Prv 30:27 [akris]; Jer. 46:23 (LXX 26:23) [akris]; Jl.1:4 [the akris, the brouchos, and erusibh][, 2:25 [akris; brouchos, erusibh, and kamph] and Na. 3:15, 17 [akris and brouchos].)

^d Gk. ἀττάκης. For Hb. סלעם slʿm [Wikipedia: sol'am -> attacos]. Per LSJ, a kind of locust. Occurs only here in LXX. (Sol'am only occurs here.)

^e Gk. ἀκρίς. For Hb. חרגל ḥrgl [Wikipedia: hargol -> ophiomchos]. Per the Suda On Line, locust, cricket, grasshopper; per LSJ, grasshopper, locust, cricket. (Hargol only occurs here.)

^f Gk. ὀφιομάχης. For Hb. חגב ḥgb [Wikipedia: hagab -> akrida]. Per the Suda On Line, snake-fighter; a kind of locust, with no wings; per LSJ, adj. fighting with serpents; as Subst., a kind of locust, and the ichneumon [wasp]. Only occurs here in LXX. (Hagab also occurs: Nm. 13:34 (LXX 13:33); 2 Chr. 7:13; Ecc. 12:5; and Is. 40:22; in all cases translated as ἀκρις.)

^g Per The Biblical Museum of Natural History: These you may eat: the arbeh after its kind, and the sela'am after its kind, and the chargol after its kind, and the chagav after its kind. ...The Torah lists four types of kosher grasshoppers (and adds according to its kind after each, which the Talmud explains to include four further kinds). It's difficult to definitively translate the four names which appear here. But consider the following. Although there are over ten thousand species of grasshoppers, only a few dozen are locusts – i.e., grasshoppers that form swarms. And of the few dozen species of locusts, only four occur in Biblical lands! And of these four, by far the most common swarming locust is the desert locust, Schistocercia gregaria, which occasionally appears in swarms in Egypt and Israel even today... Second place is taken by the migratory locust, Locusta migratoria, while the Egyptian locust and Moroccan locust come in a distant third and fourth place.

^h New Jewish Publication Society [NJPS] translation: Of these you may eat the following: locusts of every variety; all varieties of bald locust; crickets of every variety; and all varieties of grasshopper.

ⁱ Complete Jewish Bible [CJB] translation: From this [locust] category, you may eat the following: The red locust after its species, the yellow locust after its species, the spotted gray locus after its species and the white locust after its species.