• Transcribe
  • Translate

The terrestrial Adephaga of Iowa (Part 1) by Fanny Chastina Thompson Wickham, 1895

The terrestrial Adephaga of Iowa by Fanny Chastina Thompson Wickham, 1895, Page 7

More information
  • digital collection
  • archival collection guide
  • transcription tips
 
Saving...
Lamellate, having the terminal joints extended on one side into broad plates. Mouthparts. The mouth of Coleoptera is mandibulate, that is, it possesses two pair of horizontally moving pieces for seizing the food. Above it is the labrum or upper lip articulating with the clypeus. Immediately below the labrum are the jaws or mandibles usually one jointed and with a cutting surface on the inner side. This cutting edge may either be entire, that is unbroken, or toothed. Below the mandibles is the second pair of movable pieces, the maxillae, quite complex in structure. Each maxilla consists of two basal pieces, the maxillary palpus and two lobes. The basal joint is the cardo or hinge, the second is the stipes or footstalk to which are attached the appendages. On the outer side rises the palpus, from one to six-jointed; on the inner side the two lobes, the inner lobe being the cutting or chewing portion of the maxilla. It is often furnished with teeth or spines and sometimes it bears
 
Scholarship at Iowa