Por 170 



Pores. — Large isolated punctures. (Gr, poros.) 



Porose. — Possessing pores. (Gr. poros.) 



Poriform. — Resembling a pore. — (Gr. poros, and 

 jorma, form.) 



Porrect. — (Head.) In observing tbe relations of 

 the head to the thorax ; the term is used when 

 it projects. Extending forth horizontally. 

 (L. porrigo, porrectum, to stretch forth.) 



Post. — A Latin prefix signifying after, behind. 



Post-antennal organ. — A curious and variably 

 shaped organ situated between the eyes and 

 antennae of the Collembola {Lipurcej. In 

 Lipura maritima, it is seen to be composed of 

 from seven to eight spaces or areas of colour, 

 which in the young individuals amount to as 

 many as twenty-two to twenty-four, and are 

 arranged like the seeds of the malvaceoi's 

 plants. (Tullberg,* Laboulbene.) (L. post, 

 antenna, and Gr. ergon.) 



Post-clypeus. — The posterior part, of the clypeus. 

 (L. post, and clypeus.) 



Post-costal nerve. — The second principal nerve of 

 the wing, and often the strongest. (L. post, 

 and costa, a rib, and Gr. neuron, a nerve.) 



Post-dorsolum. — The intermediate piece between the 

 mesophragma and the post-scutellum. (L. 

 post and dorsum, back.) 



Post-furca. — The internal descending process of the 

 metathorax. (L. post, and furca, a fork.) 



* " Oni Skandinaveskeu Podurider," Upsala, 1869, p. 14. 



