27!) 



thicker than the third segment, which is about two and one-half 

 times as long as wide; second antenna! segment about one-half as 

 long as wide, and narrower than the third; third and succeeding 

 joints subequal, gradually tapering to the apex. Sculpture of head 

 and thorax somewhat coarser and less sparse than in the female. 

 Mouth parts and tarsi more yellowish than in the female. Mandibles 

 obliquely truncate at the apex, with a strong and acute apical tooth, 

 the truncation quadridenticulate, with the inner denticle somewhat 

 produced. Anterior tarsi not appendiculate; middle tibiae not spinose. 



Deserihed from eleven females and ci^lit males lakcii (ni 

 Oalm at Diamond Head April, 1010, iiiid foui- I'ciiniles fi-om 

 Koko Head November, 1910, (J. C. l^ridwell). 



Type, female and male, and paratopes in the entonioloiiical 

 collection of the B. P. Bishop ^Iiisenm of Polynesian Ethiuil- 

 ogy and ^N^atnral Ilistorv, and parat_v])es in the author's col- 

 lection. 



Closely related to Epi/i is anitaflfarsis Tvieffer from Tunis, 

 the excellent description of which (Ann. ^fns. Civ. Storia 

 N'at. Genova (-3) 1:390, 1004) has l)ecn followed in detail here. 

 The principal difference appears to lie in the structure of the 

 mandibles. It is probable, however, that there is less differ- 

 ence than appears in the descriptions on account of the diffi- 

 culty in mahiuii' out the peculiar structure of these distoi-ted 

 oruans. 



Notes on Dictyophorodelphax mirabilis, 



r.Y .T. ('. BRIDWET.T.. 



Anions; the Hawaiian insects Dicfi/opliorodclplKi.r imrahths 

 Swezey has been of particnlar interest on account of its 

 pecidiar form and limited distriliution. Its enormously pro- 

 lono-ed head is a peculiar development very rare amonti' the 

 Delphacids, and the genns appears to lie an endemic develo]i- 

 ment from the ordinary types of Delphacidae in the Islands. 



Mr. Swezey has already described the nym])hal forms as 

 well as the adnlts. Until recently it had appeared to l)e con- 

 fined to a sinji'le ridg'e of the Ivoolau mountains, l)ut Mr. Tim- 

 licrlake has extended its known rang'o to the i-idu'e oj)])osite its 



Proc. Haw. Ent. Soc. Ill, No. 4, May, 1917. 



