73 



teeth on the dorsal surface, one basal and the other at the 

 origin of the apical processes. At about two thirds the dis- 

 tance from the base, the apical slender portion is divided into 

 two apical processes, of which the ventral is stouter and only 

 about two-thirds the length of the dorsal and is dorsally 

 curved. The dorsal process is ventrallj curved and somewhat 

 strap-shaped. 



In D. sirezeyi the dorsal teeth are in a single group at the 

 base of the slender portion while the ventral teeth are larger 

 and the teeth are much the same in D. mirabilis. 



Described from 13 $ 5 . 9 cJ 5 and one nymph, August 8, 

 1918 (O. II. Swezey) 21 9 9 , 10 $ S and 5 nymphs, Aug. 1-'] 

 and Sept. 8, 1918 (J. C. Bridwell), collected on Euphorbia 

 hookeri integnfolia in lao Valley, Maui, Hawaiian Islands, at 

 elevations of 600-800 feet on the lower slopes of the ridges 

 rising out of the valley. 



Type S and allotype 9 , nymphs and paratypes deposited 

 in the collection of the Hawaiian Entomological Society. Par- 

 atypes in the collections of the Hawaiian Sugar Planters' Asso- 

 ciation, the Bernice Pauahi Bishop Museum, and in the pri- 

 vate collections of J. C. Bridwell, O. H. Swezey, and P. H. 

 Timberlake. 



My thanks are due to Mr. Frederick Muir for the prepara- 

 tion of the drawing of the edeagus accompanying and to Mr. 

 P. H. Timberlake for the dissections upon which the descrip- 

 tions of this species and D. i^trezcyi were based. 



NOTES AND EXHIBITIONS. 



Maul Delphacicls. — ^Iv. Giffard exhibited 6 species of Del- 

 phacidae collected on Maui in August by Mr. J. F. Kock, viz. : 



From :Mt. Eeke, 5,000 feet elevation, West Maui: 

 1 specimen Nesorestias n. sp., or Ilhumla n. sp. 

 If the latter, probably a variety of I. fuUnwayi. 



