394 The Philippine Journal of Science wis 



black fascia with base next to posterior process, next to this a 

 triangular white area narrowest above, beyond this a second 

 broad, black fascia extending almost to tip, which is subhyaline. 

 Undersurface of body almost black anteriorly with white pubes- 

 cence ; abdomen fuscous ferruginous. Legs simple, ferruginous ; 

 tarsi somewhat darker. Type, male. 



Length, 5 mm. ; maximum width, 2 mm. 



Mindanao, Butuan (Baker). 



Genus GARGARA Amyot and Serville 



Membracis Fabr. (in part) ; Centrotus Fabr. (in part) ; Oxyrhachis 

 Germ, (in part) ; Srmlia Germ, (in part) ; Maerops BucKT. 



Gargara is the most richly represented, thus far, of all the 

 genera of the Membracidse found in the Philippines. Twelve 

 species are here recognized and future collecting will doubtless 

 yield many more. The genus has a wide range, the type species 

 (G. genistx Fabr.) being found in Europe, while many forms 

 have been recorded from Asia, Africa, and the East Indies. 



The species are for the most part small and without the 

 striking pronotal developments so common to the family. From 

 the small size and commonplace appearance of its species the 

 genus was named by its authors ^* from the fancied resemblance 

 to a seed. 



The pronotal horns are lacking, the posterior trochanters 

 unarmed, the pronotum usually smooth, and the posterior process 

 straight. 



The following key, while based on characters entirely artifi- 

 cial, will, it is believed, enable the student to locate all of the 

 species known to the Islands to date. However, any dicho- 

 tomous table is more or less unsatisfactory, and the full de- 

 scriptions must be consulted for final recognition of the species. 



Key to the Philippine species of Gargara. 



a'. Pronotum entirely black or very dark. 



6'. Median dorsal ridge distinct and prominent on anterior pronotum as 

 seen from front. 



c\ Tips of tegmina hyaline or nearly so luconica. 



c^ Tips of tegmina opaque or concolorous with rest of tegmina. 



varicolor. 



6^ Median dorsal ridge not present on anterior pronotum or if present 

 very obsolete and faint. 

 c\ Posterior process extending beyond tip of abdomen; large trifoliate 

 spot on tegmen trifoliata. 



" Histoire Naturelle des Insectes — Hemipteres (1843), 527. 



