104 



3'ellowish. Tegmina and wings byaline, veins pale fuscous. Legs yellow- 

 ish brown, femora basally more or less piceous. Vertex fiat, transverse, 

 foremargin truncate, mediolongitudinally narrowly sulculate and shallowly 

 pitted on each side nearer the base. Head nearly as wide as thorax, frontal 

 cones rounded apically. Pronotum scarcely as wide as vertex, very short. 

 Dorsulum longer than wide, suboval, narrower than the mesonotum, 

 which is transverse. Scutellum small. Tegmen about 2-f times as long 

 as wide in form like that of T. koebelei Kirkaldy and with similar venation, 

 except that the brachial (lower branch of cubital) forks basal of the middle. 

 S largely orange j'ellow. Head dorsally yellow cinereous with a line 

 down the middle as in the other sex. Cones bright orange. Nota orange 

 brown, rather feebly lined with fuscous and yellow brown. Tegmina and 

 legs as in the 9 , but the veins of the former yellower. Abdomen ferrugi- 

 nous, last tergite deeply excavated apically, wavily refiexed, the refiexed 

 part cream j^; genital segment diamond shaped. 



Length to apex of abdomen 2f mill. ; to apex of tegmina folded ol mill. 



Hab. Viti, Rewa (III 06. Muir 1^2$?). 

 2. vanuae sp. nov. 



9 yellowish, abdomen (except genital segment) black. Head dorsally 

 with a very slender black sulculation, ocelli orange red. Pronotum very 

 transverse, obtuse-angularly emarginate posteriorly, very narrowly mar- 

 gined there with black. Dorsulum about as long as mesonotum and 

 scutellum together, scarcely longer than wide. Tegmina in form like 

 T. vitiensis, hyaline, veins yellowish fuscous, venation like that of T. 

 koebelei but the median (upper branch of cubital) forks close to the apex 

 of the tegmen. 



Length ll (to apex of abdomen) and 4 mill, (to apex of tegmina folded.) 



Hab: Viti, Rewa, (III 06. Muir, 19). 



An Extraordinary Leaf-hopper from Mt. Konahuanui, Oahu. 



B}^ Otto H. Swezey. 

 Dictyophorodelphax gen. nov. 



This aberrant genus of Delphacidae is erected for a single 

 species discovered on a southern ridge of Mt. Konahuanui, Oahu, 

 February, 1906. The genus is chiefly distinguished from other 

 genera of Delphacidae by the extremely long, narrow, forward 

 prolongation of the head giving it a superficial resemblance to 

 Scolops, or some others of the Dictyophorinae. Its position in 

 Delphacidae is determined by the presence of a movable spur at 

 the apex of posterior tibia. 



The prolongation of the head is as long as the rest of the 

 insect. It is narrow and tapers gradually to a blunt apex. It 

 has a median carina ventrallv; two lateral carinae, the ventral 



