138 The Philippine Journal of Science 1915 



possible that the coming year will see less injury from this cause 

 in this locality. I have also taken a single specimen on Anona 

 reticulata. All of the cultivated anonaceous fruits in the Philip- 

 pine Islands were imported from America; therefore it is 

 probable that this insect finds its natural food among native 

 anonaceous fruits of the Philippine forests.* 



" After this paper, describing an apparently new species of Egropa, had 

 gone to the printer, I made what is, to me, an exceedingly important and 

 interesting discovery: that Distant, although he did not recognize the iden- 

 tity of Melichar's Egropa [Fauna Brit. India— Rhynch. (1906), 3, 368], 

 has since described entirely congeneric species in the genus Hilda ( = Isth- 

 mia Stal, praeocc). Kirkaldy and Distant had considered this one of the 

 Issidas, though Stal had associated it with Tettigometra. Melichar properly 

 placed it — as Egropa — in the Tettigometridse. Thus set on the right track, 

 I soon discovered that my supposedly new species of Egropa was identical 

 with Isthmia breviceps Stal, a species apparently not recognized since its 

 description in 1870. I have a second Philippine species from Palawan, as 

 yet unstudied. The generic synonymy and bibliography of this economic- 

 ally important group is as follows: 



Genus Hilda Kirkaldy 



Isthmia Walker — nom. prasocc. — List Hom. (1851), 3, 732; Stal, Hem. 



Afr. (1866), 4, 218. 

 Hilda Kirkaldy, Entomologist (1900), 243. 

 Egropa Melichar, Hom. Ceylon (1903), 82; Distant, Fauna Brit. Ind. — 



Rhynch. (1906), 3, 368. 



Hilda undata Walker. 



Isthmia Walker, List. Hom. (1851), 3, 732. Sierra Leone. 



Hilda funesta Stal. 



Tettigometra Stal, Of. Vet. Ak. Forh. (1854), 249; Walker, List Hom. 



Suppl. (1858), 336; Stal, Of. Vet. Ak. Forh. (1862), 494. 

 Isthmia Stal, Hem. Afr. (1866), 4, 219. Sierra Leone. 



Hilda patruelis Stal. 



Tettigometra Stal, Of. Vet. Ak. Forh. (1855), 100. 

 Isthmia Stal, Hem. Afr. (1866), 4, 219. Caffraria. 



Hilda breviceps Stal. 



Isthmia Stal, Of. Vet. Ak. Forh. (1870), 761. Philippines (Luzon). 



Hilda inusta Mel. 



Egropa Melichar, Hom. Ceylon (1903), 82. Ceylon. 



Hilda jacobsoni Bierm. 



Egropa BiERMAN, Ent. Ber. (1907), 2, No. 34, 162, Java; Bierman, 

 Notes Leyden Mus. (1907), 29, 158. 



Hilda malayensis Dist. 



Distant, Rec. Ind. Mus. (1908), 2, 129. Siam, Malay States, Bukit 

 Besar. 

 Hilda bengalensis Dist. 



Distant, Ann. Mag. Nat. Hist. (1909), 3, 41. Bengal. 



