The order Hymenoptera includes which of the following groups?

The order Hymenoptera includes which of the following groups?

• A. Bees, Ants, Wasps, Sawflies
• B. Butterflies, Moths, Skippers
• C. Stink bugs, Plant bugs, Boxelder bugs
• D. Scale insects, Mealybugs, Aphids

Answer: (A)

Insect orders are defined by shared structures and life cycles. Hymenoptera groups together bees, ants, wasps, and sawflies because they share features such as chewing mouthparts, two pairs of wings with hind wings connected to the forewings by small hooks (hamuli), and complete metamorphosis. A helpful nuance is the constricted waist between the thorax and abdomen that many Hymenoptera have, which gives them their distinctive slender profile and agile movement; sawflies are a bit different in this regard, lacking that narrow waist but still belonging to the same order due to other shared traits. The other groups fit different orders. Butterflies, moths, and skippers belong to Lepidoptera, which are characterized by scaled wings and a coiled proboscis. Stink bugs, plant bugs, and boxelder bugs, as well as scale insects, mealybugs, and aphids, are in Hemiptera, known for piercing-sucking mouthparts and their half-membranous wings or winged forms. So the group that correctly belongs to Hymenoptera is bees, ants, wasps, and sawflies.

Insect orders are defined by shared structures and life cycles. Hymenoptera groups together bees, ants, wasps, and sawflies because they share features such as chewing mouthparts, two pairs of wings with hind wings connected to the forewings by small hooks (hamuli), and complete metamorphosis. A helpful nuance is the constricted waist between the thorax and abdomen that many Hymenoptera have, which gives them their distinctive slender profile and agile movement; sawflies are a bit different in this regard, lacking that narrow waist but still belonging to the same order due to other shared traits.

The other groups fit different orders. Butterflies, moths, and skippers belong to Lepidoptera, which are characterized by scaled wings and a coiled proboscis. Stink bugs, plant bugs, and boxelder bugs, as well as scale insects, mealybugs, and aphids, are in Hemiptera, known for piercing-sucking mouthparts and their half-membranous wings or winged forms. So the group that correctly belongs to Hymenoptera is bees, ants, wasps, and sawflies.