. The Butterfly farmer. Butterflies; Lepidoptera. PRIONUS CALIFORNICUS MOTSCH. Rensselaer J. Smith, M. D., Milpitas, Cal. The family of our illustration is a very large and beautiful one, the Cerambycidae (Long-horned beetles). Sub-family Prioninae. Species Prionus Californicus Motsch. Natural size, cut original. Taken at electric light July, 1913. External anatomy Coleoptera or Beetles: For simplicity divide into three regions; the head, thorax and abdomen. The heads of beetles vary greatly in shape and size. The head is joined to the thorax by a membrane and is more or less constricted into
. The Butterfly farmer. Butterflies; Lepidoptera. PRIONUS CALIFORNICUS MOTSCH. Rensselaer J. Smith, M. D., Milpitas, Cal. The family of our illustration is a very large and beautiful one, the Cerambycidae (Long-horned beetles). Sub-family Prioninae. Species Prionus Californicus Motsch. Natural size, cut original. Taken at electric light July, 1913. External anatomy Coleoptera or Beetles: For simplicity divide into three regions; the head, thorax and abdomen. The heads of beetles vary greatly in shape and size. The head is joined to the thorax by a membrane and is more or less constricted into a neck. The mouth, eyes and antennae are parts of the head. Examine the eyes of several beetles with a microscope and you will find that they vary greatly in size and shape. They may be called compound eyes as they are made up of many single lenses, some coarsely and others finely granulated. The lateral, movable, jointed appendages of the head are known as the antennae. Huxley states that they are the seat of smell. The number of joints vary from two to twenty-seven, ordinarily eleven. Mouth parts: upper lip labrum (la' brum) ; under lip labium (la' bi um) ; upper jaw mandibles (man' di bles) ; lower jaw maxillae (max il' lae). Thorax or second part of body to which are attached the legs and wings: it is divided into three parts and starting from the head these are called pro- thorax, mesothorax and metathorax. The leg: next to the body in the cut the visible part is the femur or thigh, next the tibia or shank, and the last part is the tarsus or foot which has segments, the last segment has two claws. The wing-covers are called elytra (el' y tra), singular elytron. In different species these vary greatly in shape, sculpture, color and decoration. America north of Mexico has nearly 12,000 species of beetles representing about 80 families. 83. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration a
Size: 1535px × 1628px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbutterf, bookyear1913
