. Bulletin. Natural history; Natural history. August, 1974 Vance: Larvae of the Sericothripini 183 E. americanus. However, considerable variation in setal lengths was found in americanus; so the extent of variation in both species will have to be investi- gated before setal measurements can be used as a diagnostic feature. Echinothrips americanus Morgan (1913) (Fig. 16, 30, 54, and 73) Larva II.—Cuticle yellow to orange. Antennae, tibiae, bases of femora, and. Fig. 49-56.—Head and pronotum of the second-instar larva. 49.—Scirtothrips niveus. 50.—Scirtothrips taxodii. 51.—Dendrothrips ornatus.
. Bulletin. Natural history; Natural history. August, 1974 Vance: Larvae of the Sericothripini 183 E. americanus. However, considerable variation in setal lengths was found in americanus; so the extent of variation in both species will have to be investi- gated before setal measurements can be used as a diagnostic feature. Echinothrips americanus Morgan (1913) (Fig. 16, 30, 54, and 73) Larva II.—Cuticle yellow to orange. Antennae, tibiae, bases of femora, and. Fig. 49-56.—Head and pronotum of the second-instar larva. 49.—Scirtothrips niveus. 50.—Scirtothrips taxodii. 51.—Dendrothrips ornatus. 52.—Drepanothrips reuteri. 53.— Sericothrips annulipes. 54.—Echinothrips americanus. 55.—Taeniothrips simplex. 55.— Scolothrips Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
