44 Ball — New Genera and Species of Jmdae {FnUjoruhie). 



brown markings often accentuated against tiie oblique band. Male, uni- 

 formly darker with the same markings. 



Described from five examples taken at Colfax, ralifi)niia, by the author. 



Dictyssa ovata sp. \u^\. 



Slightly smaller and darker than areolata witJi only tiin-e discal hyaline 

 cells on elytra. Length, 3.5 mm. 



Vertex narrow, anterior margin straiglit, cariuate, meeting front in a 

 right angle, slightly longer and more prominently angled than in areolata. 

 Elytra with the two inner branches on the corium widely separated and 

 curved to form an almost circular cell on the inner disc. In areolata and 

 mutaia the inner branch is not curved and the outer one less so than in 

 tlie pre.sent species. 



Color. — Face vertex and pronotum clear pale yellow, rarely obscured 

 with smoky brown. Elytra varying from dark brown to almost l)lack 

 with the anterior half of the costa light, interrupted with transverse brown 

 nervures. Posterior half of costa and entire apical margin and most of the 

 sutural margin ornamented with small semicircular pellucid spots. Disc 

 of corium with three nu'lky-white subhyaline cells in an oblicjue band, the 

 median cell much the larger, almost circular, and its uuirgin studded with 

 about eight short, dark nervures. Inner hyaline area irregular, much 

 smaller, usually extending across the suture onto the clavus, and often 

 partially or wholly divided by a cross nervure. Outer cell nearly pen- 

 tagonal in outline, scarcely two-thirds the size of the middle one and 

 usually more than its own width removed from the spots along the costa. 



Described from eight examples from Ti Juana, Mexico, and Tia Juana, 

 California, collected by the autlior. Closely resembling areolata but 

 easily separated by the smaller size and the abbreviated oblique marking 

 of the elytra which does not reach the costa. 



Dictyssa fenestrata sp. nov. 



Resembling ovata in form, slightly snuUler. Brown with two transverse 

 bands of hyaline spots behind the middle of the elytra. Length, 3 mm. 



Vertex slightly longer and narrower than in ovata, with the carinae more 

 elevated. Elytral venation similar to ovata but with the first two sect(jrs 

 of the corium less widely separated as in mutnta, and with a smallt^r num- 

 ber of reticulate veinlets, especially towards the apical portions. 



Color. — Pale dirty brown. Elytra brown with the nervures mostly pale. 

 Costal and sutural margins bordered with small pale spots. An oblique 

 hyaline band from the base of clavus to center of corium. A transverse 

 hyaline band just back of the middle of corium made up of five or six 

 angular cells, another transverse band across the apex composed of three or 

 four large oval hyaline cells and about the same number of minute round 

 ones against the margin between the larger ones. 



Described from six exami)k's from Tia Juana, California, collected by 

 the author. A very distinct species and one easily recognized by the large 

 hyaline cells at the apex. 



