84 Psyche [June 



cohol has made it necessary to draw the figures from dried speci- 

 mens — which are always more or less distorted. In the main, 

 however, it will be found that the relations of the parts are re- 

 presented approximately correctly. Since the specimens were 

 studied from various angles, it was found necessary to examine 

 them submerged in a liquid medium (rather than mounted on 

 slides) and a binocular was found much more satisfactory than 

 the compound microscope, for this purpose. 



In all of the figures, the insect's left maxilla has been depicted, 

 and all views represent that surface of the maxilla which is nor- 

 mally directed posteriorly when the maxilla is "in situ'' — or at- 

 tached to the insect's head. 



In Fig. 1 (Plate XI) is shown the maxilla of a species of the Phas- 

 mid Anisomorpha (probably Anisomorpha huprestoides), while 

 that shown in Fig. 2 is of a species of Phy Ilium (probably Phyllium 

 scythe). Fig. 4 is based upon the condition found in the maxilla 

 of Tettigidea parvipennis, and that of a species of Paratettix. Fig. 3 

 represents the maxilla of Dissosteira Carolina, and in this figure 

 the outline of the distal segment of the galea is somewhat distorted, 

 due to the fact that the specimen was flattened out to a greater 

 extent than in the other insects figured. 



As may be seen from the accompanying figures, the cardo, or 

 basal portion of the maxilla (co, of all figures) is divided into two 

 subdi^'isions in the Orthoptera-like insects. These two subdivi- 

 sions are the veracardo (vc) and the juxtacardo (jc). The basal 

 portion of the juxtacardo, jc, is not clearly visible until the maxilla 

 is turned base upward, at a considerable angle. This region of the 

 juxtacardo bears a prominent articulatory condyle, ac, to which 

 there is usually attached a slender chitinous "muscle tendon." 

 This maxillary condyle tendon is not shown in Figs. 1 and 2, but 

 is colored black in Figs. 3 and 4. The juxtacardo of Phyllium and 

 the Phasmids (Figs. 1 and 2, jc) is much broader in comparison 

 with the veracardo (re) than is the juxtacardo of the Acrididse here 

 figured. 



The stipes (st, of all figures), like the cardo, is also divided into 

 two principal subdivisions, the juxtastipes (js) and rerastipes {vs),^ 



1 The designations eu cardo, eustipes, paracardo and parastipes would be somewhat briefer 

 and more euphonious than veracardo, verastipes, juxtacardo and juxtastipes; but, since cardo 

 and stipes are Latin terms, it is preferable to combine them with " vera" and " juxta" rather than 

 witli the Greek "eu" and "para." 



