. Elementary lessons in zoölogy : a guide in studying animal life and structure in field and laboratory. Zoology. 86 INSECTS. mains of other bees. In this way you will get an idea of the extent of its depredations on the population of the hive. Capture a few good specimens to be used in studying the external peculiarities. Note specially the length of the abdomen, the strength of the beak, the size and rough- ness of the legs, and the position, size, and strength of the wings. Make drawings of antennae, mouth parts, legs, wings, halteres, etc., and compare with those of the blue- bottle fly. T
. Elementary lessons in zoölogy : a guide in studying animal life and structure in field and laboratory. Zoology. 86 INSECTS. mains of other bees. In this way you will get an idea of the extent of its depredations on the population of the hive. Capture a few good specimens to be used in studying the external peculiarities. Note specially the length of the abdomen, the strength of the beak, the size and rough- ness of the legs, and the position, size, and strength of the wings. Make drawings of antennae, mouth parts, legs, wings, halteres, etc., and compare with those of the blue- bottle fly. THE CABBAGE BUTTERFLY. (Pieris rapoe.) This is the small white butterfly with black wing tips, too abundant about our gardens. Something of its habits will have been seen already, for it is commonly found feeding with the sulphur butterfly. Collect now a number of specimens to be used in studying it. External Anatomy. — Female Cabbage Butterfly, Pieris Follow the plan of study rap» (from Riley). i -i j • xi. ,, td v • laid down m the " prelimi- nary Lesson" for the sulphur butterfly. When studying the mouth parts, note that the coiled organ, which has been called the tongue^ consists of two elongated organs, grooved on their inner edges, and placed side by side, so that the grooves meet, and form a tubular food passage between them, and that these two organs are, in fact, the much modified lacinia of maxillse. A few convenient descriptive terms applying to the wings need to be learned here. The wings, being some- what triangular in outline, present three margins and three angles. The anterior margin is called the costal. 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 Needham, James G. (James George), 1868-1956. New York : American Book Company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
