Homoptera from Southern Africa. 131 



Fam, Cercopidae. 

 Genus LoCRiS. 



Locris Rendalli, sp. n. 



Head and pronotum black, the last with the anterior and 

 lateral margins and two transverse spots on disk ochraceous. 

 Abdomen above sanguineous, slightlj fuscous at lateral 

 margins. Body beneath and legs blackisli ; ejes and lateral 

 margins of prosternum ochraceous ; posterior tibise, excluding 

 bases and apices, pale sanguineous. 



Tegmina blackish ; basal streaks, two transverse fasciee, 

 and a subapical patch ochraceous. Wings pale fuscous, 

 semihyaline, the outer apical margin darker ; extreme base 

 narrowly sanguineous. 



Long. 9 millim. ; exp. tegm. 21 millim. 



Hab. Nyassaland, Zomba {Dr. Percy Rendall). 



This species, by the colour and markings of the tegmina, 

 is closely allied to the West- African L. maculata, Fabr., but 

 differs from all the varietal forms of that species by the 

 ochraceous margins to the pronotum and by the absence of 

 the ochraceous frontal margins to the head. The pronotum 

 is also broader. 



Why these two species, or geographical forms of one 

 species as they may some day be more correctly identified, 

 should on the east and west sides of the continent have deve- 

 loped a difference in the structure and markings of the pro- 

 notum is one of the still unsolved problems in specific evolution, 

 and unexplained by any of the colour theories now proposed 

 in speculative entomology. 



Locris Junott, sp. n. 



Head, pronotum, scutellum, basal third and apical margin 

 of tegmina, face and legs sanguineous ; tegmina (excluding 

 base and apical margin) pale creamy ochraceous, mottled with 

 pale fuscous, the apical third distinctly darker ochraceous, 

 containing a dark fuscous spot. Eyes, ocelli, two spots on 

 anterior area of pronotum, sternum, abdomen beneath, and 

 bases of femora piceous. 



Long., incl. tegm., 8 millim. 



Hab. Delagoa Bay [Junot). 



This species, by its singular coloration, is nearest allied to 

 L. concinna, Dist., and it is peculiar that we must cross the 

 continent to Damaraland to find its nearest specific ally. Of 

 course, collectors may subsequently find the two species less 



