HANCOCK 



29 



bounded above by the anterior lateral carinje (absent in Pax- 

 ilia), which appear in front of the humeral angles. A median 

 carina is more or less present on the dorsum of the pronotum, 

 continued backward on the apical process, and there are two 

 lateral carinse which anteriorly cover the humeral angles on 

 each side and are continued backward on the process. An 

 infra-apical carina arises behind the shoulders over the apex 

 of the elytra and runs a short curved course downward and 

 backward to form the inferior marginal carina of the process. 

 It has been termed the humeral apical carina and defines the 

 limits of the scapular area. The lateral lobes are obliquely 

 directed, the posterior margin sinuate; the superior or infra- 

 humeral elytral sinus receives the base of the elytra and 

 above it is the overlying humeral angle; an inferior lateral 

 sinus is usually present and a superior or median lobule is 

 located between the two; the inferior border of the lateral 

 lobe of the pronotum behind terminates in an angle (the pos- 



FlG. 7. Dorsal aspect of the thorax with the pronotum removed, showing the 

 mesonotum and metanotum of Tettix ^ranulatiis. Ventral 

 aspect of the thorax of same species to the right, showing 

 sclerites. Anteriorly the modified prosternum is indicated as 

 the sternomentum, which surrounds the mouth parts. 



terior angle which takes on various forms), and is much used 

 in descriptions, while anteriorly the angle is nearly always 

 more or less subrounded and rarely used taxonomically. 



The mesonotum. Fig. 7, has the squamous elj^tra attached, 

 the metanotum the posterior wings; the prosternum is e.xtraor- 



