The Creator, if He exists, must have "an inordinate fondness for beetles". J. B. S. Haldane

The Creator, if He exists, must have "an inordinate fondness for beetles".

J. B. S. Haldane

Entomology LabWeek 3

ORTHOPTEROID ORDERS&

DERMAPTERA

Blattodea

Isoptera

Mantodea

Phasmatodea

Orthoptera

Dermaptera

Order CharacteristicsBlattodea Antennae slender, filiform

Pronotum oval, shield-like, covering much of head and thorax Legs adapted for running; tarsi 5-segmented Front wings thickened; hind wings membranous, pleated Cerci short, multi-segmented

Isoptera Body pale in color, somewhat ant-like in appearance but with a broader junction between thorax and abdomen / Compound eyes small or absent / Head large and cylindrical or small and round Antennae beaded / Mouthparts chewing; sometimes with large mandibles

Phasmatodea Antennae long, slender / Mouthparts mandibulate, prognathous / Body long, cylindrical Prothorax shorter than meso- or metathorax / Leg segments long and slender Tarsi 5-segmented / Wings often reduced or absent / Cerci short, unsegmented

Mantodea Filiform antennae / Head triangular with well-developed compound eyes / Mouthparts mandibulate, hypognathous / Prothorax elongate with large, spiny front legs adapted for catching prey Front wings thickened, more slender than hind wings / Tarsi 5-segmented / Cerci short, multi-segmented

Orthoptera Antennae filiform / Mouthparts mandibulate, hypognathous / Pronotum shield like, covering much of thorax / Front wings narrow, leathery (tegmina); hind wings fan-like / Hind legs usually adapted for jumping (hind femur enlarged) / Tarsi 3- or 4-segmented / Cerci short, unsegmented

Dermaptera Antennae slender, beaded / Mouthparts mandibulate, prognathous / Tarsi 3-segmented Front wings short and leathery / Hind wings semicircular and pleated / Cerci enlarged to form pincers (forceps)

TodayKey all 13 ortopteroid specimens to

order and key all orthoptera specimens to family

Next Week

Hemipterans, Neuropterans, Mecopterans