378 The Philippine Journal of Science wis 



Length, 9 mm. ; width between extremities of pronotal horns, 

 5.8 mm. 



I believe this to be Buckton's species, though it is slightly 

 larger than the specimen he describes. The habitat given by 

 that author is Luzon, Philippine Lslands. There was no date 

 label nor further locality name on the specimen which I was 

 permitted to examine. 



Genus LEPTOCENTRUS Stal 



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



Leptocentrus is an old and well-established genus," including 

 those forms in which the posterior process is well elevated above 

 the body but does not bear a lobe below. The hind wings have 

 four apical areas and the tegmina five apical and two discoidal. 

 The suprahumeral horns are strong and usually widespreading. 

 The genus is well represented in Africa and India ; four species 

 have been reported from the Philippines. These may be sepa- 

 rated as follows : 



Key to the species of Leptocentrus. 



a*. Posterior process short, not extending as far as the internal angle of 



tegmina aduncus. 



a'. Posterior process extending beyond internal angle of tegmina. 



6\ Suprahumeral horns extending strongly upward leucaspis. 



b'. Suprahumeral horns almost horizontal. 



c^. Front margin of suprahumeral horns flattened into subfoliaceous 



ridge reponens. 



c'. Front margin of suprahumeral horns not flattened taurus. 



Leptocentrus taurus Fabr. 



Cicada taurus LiNN., Gmel. Ed. Syst. Nat. (1740), 1,3; (1767), 4, 



14; Fabr., Spec. Inc. (1781), 2, 317; Fabr., Mant. Ins. (1787), 2, 264. 

 Membracis taurus Fabr., Syst. Ent. (1775), 676; Oliv., Enc. Meth. 



(1792), 7, 665; Fabr., Ent. Syst. (1794), 4, 14. 

 Membracis rupicapra Fabr., Ent. Syst. Suppl. (1798), 514. 

 Centrotus rupicapra Fabr., Syst. Rhyng. (1803), 18. 

 Centrotus taurus 'Fabr., Syst. Rhyng. (1803), 18; Germ., Rev. Silb. 



(1835), 3, 257; Blanch., Hem. (1840), 3, 182; Fairm., Rev. Memb. 



(1846), 510; Walk., List Hom. Brit. Mus. (1851), 602; Suppl. 



(1858), 158. 

 Membracis tricornis Hardw., Zool. Journ. (1828), 13; Hardw., Tabl. 



Suppl., PI. 30, figs, c, d, f. 

 Centrotus terminalis Walk., List Hom. Brit. Mus. (1851), 604; 



Melich., Hom. Cey. (1903), 109. 

 Centrotus vicarius Walk., List Hom. Brit. Mus. (1851), 605. 



"Stal, Hem. Afr. (1866), 4,.87 and 90. 



