EXPLANATION OF PLATES. 



The following drawings were made with camera lucida under the supervision of 

 the author by Miss Esther H. Hart. 



The photographs were made by Mr. H. B. Kirk. 



PLATE I. 



Larv^ of Cerambycid^. 



Subfamilies as based on the anatomical characters seen in the head. 

 a. i. r. m., attachment of inferior retractor muscles of head. 

 ant., antenna. 



a. s. r. m., attachment of superior retractor muscles of head, 

 c, cardo. 

 cly., clypeus. 

 epic, epicranium. 

 epist., epistoma. 

 fr. s., frontal suture. 

 gu., gula. 

 hi/p., hypostoma. 

 /., ligula. 

 ?a 6., "lab rum. 

 lac, lacinia. 

 Z. p., labial palpus. 



Z. pa?., labial palpifer. • 



m., mentum. 

 md., mandible, 

 m. pal/., maxillary palpifer. 

 m. s., median suture, 

 mx. /)., maxillary palpus. 

 mx. sc, maxillary sclerite. 

 occ. /or., occipital foramen. 

 p. c ca., postcondylar carina. 

 s.f. sp., subfossal spine or process. 

 s. m., submentum. 

 St., stipes. 

 tent., tentorium. 



I, anterior portion of occipital foramen. 



II, posterior portion of occipital foramen. 



PLATE II. 



Larv^ of Prionin^. 



Figs. 1 and 2. — Difference in structure in the presternum between (1) Mallodon 

 and (2) Priomis. 

 p. St., presternum. 

 St., eusternum. 

 plr. z., lateral, pleural, zone. 

 hyp., hypopleurum. 

 sth, sternellum. 

 See also the group of spines on the anterior part of the lateral zone in Mallodon. 

 Figs. 3 and 4. — ^Showing the ventral mouth parts of the Prioninse, and the difference 

 in sliape of the joints of the maxillary palpi between Prionus and Orthosoma. 

 (Lettering as in PI. I.) 



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