386 



])]iaci(l.- Alalia I'lrh-aJdiji. is attached to E. liUlehraiidl urowing 

 on the same ridg'e of Kaala before referred to. Another £"(1- 

 pliorhla insect and one of the most interesting of our endemic j 

 insects is the bizarre DeJphacld. Dicfijophorodelphax miraJ)iJis 

 Swezey, which the writer had the pleasure of relatinji' to its 

 foo(l|)lant Eupliorhla rlusiacfoHa. in 101(5 and hiter with ^Iv. 

 Timberlake and Mr, Swezev of finding it attached on ^It. 

 KaahT to E. JiiUehmndi some twenty-five miles in an airline 

 from its original habitat in the other range of mountains. On 

 May 6, 1917, wdiile collecting in Wailupe in the southeastern 

 Koolau ]\[ountains in company with Mr, Swezey after climbing 

 out of the valley at the end of the middle ridge dividing the 

 two main branches of the valley at an elevation of about twelvp 

 or fifteen hundred feet we came upon some bushes of a Eu 

 pJiorhia determined for me by ]\Ir. Forbes as E. ccdadroide-" 

 Upon sweeping these bushes I secured four specimens of ai 

 Did ijo pli orodel pit <ix and when I informed Mr. Swezey of my 

 find, he secured two adults and a single nymph. Upon com- 

 parison of these specimens with D. mirabilis it became evident 

 that we had discovered a second species of this peculiar en- 

 demic genus of Delphacidae. It will be interesting to learn if 

 other species occur attached to other species of Eupliorhhi upon 

 the other islands, ^, 



i 



■• D let i/ophorodcl phax sivczeyi n. sp. 



Total length, 6 mm. ; length of the prolongation of the head in front 

 of the eyes, 2.5 mm. 



Closely resembling D. mirabilis Swezey but smaller and darker; the 

 prolongation of the head relatively shorter, more slender and tapering, 

 not bent downward apically but with a slight upward curve; tegmina 

 proportionally a little longer but not reaching the apex of the abdomen, 



$ Genital styles blunt at the apex, only slightly curved, not pro- 

 longed into an acute curved tooth, apical slender portion of aedeagus 

 nearly in a straight line with the thicker basal portion. 



Nymph. The nymphs may be readily distinguished from those ol 

 D. inirabilis by the much darker coloration and the less prolonged heac 

 in corresponding instars. 



*This description supplied just before the IMS. for this number of 

 the Proceedings went to press. — [Ed.] 



