| 单词 | stem mother |
| 释义 | > as lemmasstem mother stem mother n. Entomology = fundatrix n. 2. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > subclass Pterygota > [noun] > division Exopterygota or Hemimetabola > order Hemiptera > suborder Homoptera > family Aphis > founding female of colony stem mother1878 fundatrix1881 1878 Entomologist's Monthly Mag. XIV. 224 An enormous single egg, from which, undoubtedly, will come the stem-mother. 1895 J. H. Comstock & A. B. Comstock Man. Study Insects 159 From the winter egg there hatches, usually in the spring, an agamic female, which as she is the stock from which the summer generations spring, is often called the stem-mother. 1900 Proc. Assoc. Econ. Entomol. 68 During the last week in April the stem mothers of an aphis..were found depositing young. 1907 W. R. Fisher Schlich's Man. Forestry (ed. 2) IV. 362 The wingless parthenogenetic ♀, stem-mother or fundatrix, hibernates alone on spruce buds. 1923 H. Maxwell-Lefroy Man. Entomol. 272 These first females are known as fundatrices, or stem-mothers. 1979 Vole Dec. 40/2 Here the mated females [sc. grain aphides] hide the eggs that will come through the winter. These hatch in the late spring.., becoming ‘stem mothers’ that grow up to fly in quest of grain fields. < as lemmas |
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