Introduction -- Dichotomous keys -- External anatomy -- Insect development -- Taxonomic terminology -- Taxonomy, classification, and nomenclature -- Phylum Arthropoda ...

PROF. ALEXANDER PUTRUNKEVITCH, a distinguished arachnologist, has furnished an account of the Pakæozoic Arachnida in the Transactions of the Connecticut Academy of Arts and Sciences, vol. 37, 1949 ...

THE Arachnida have been unduly neglected by zoologists, having been overshadowed as objects of study by the beauty and infinite variety of the insects. The study of the class has been difficult, owing ...

Thirty-two species of pseudoscorpions have been found co-existing with nine packrat (or woodrat) species of the genus Neotoma, and this association has been referred to as phoresy. Phoresy is a term ...