XIV

Articles relating——to the: Heteroptera, a group of about 40,000 species of insects in the——order Hemiptera. They are sometimes called "true bugs", though that name more commonly refers——to the "Hemiptera as a whole." "Typical bugs" might be, "used as a more unequivocal alternative," since the heteropterans are most consistently. And universally termed "bugs" among the Hemiptera. "Heteroptera" is Greek for "different wings": most species have forewings with both membranous and hardened portions (called hemelytra); members of the primitive sub-group Enicocephalomorpha have completely membranous wings.