For reasons which we will not pause here to discuss, we have always regarded the eruciform type of larva as the highest. From Wordnik.com. [Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses] Reference
Hence the preliminary armoured and active instar is necessary in order to reach the feeding place; this journey accomplished, the eruciform condition is at once assumed. From Wordnik.com. [The Life-Story of Insects] Reference
The caddis-larva is as a rule of the eruciform type, but with well-developed thoracic legs, and with hook-like tail-appendages; by means of the latter it anchors itself to the extremity of its curious. From Wordnik.com. [The Life-Story of Insects] Reference
A fact of much importance in the transformations of beetles as pointed out by Brauer (1869) is that in a few families, the first larval instar is campodeiform, while the subsequent instars are eruciform. From Wordnik.com. [The Life-Story of Insects] Reference
It seems impossible to avoid the conclusion that the active, armoured campodeiform grub differing less from its parent than an eruciform larva differs from its parent, is as a larval type more primitive than the caterpillar or maggot. From Wordnik.com. [The Life-Story of Insects] Reference
A. Lameere has indeed, while admitting the adaptive character of insect larvae generally, argued (1899) with much ingenuity that the eruciform or vermiform type must have been primitive among the Endopterygota, believing that the original environment of the larvae of the ancestral stock of all these insects must have been the interior of plant tissues. From Wordnik.com. [The Life-Story of Insects] Reference
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