38 TRANSACTIONS OF THE [1888 



knees and tarsal joints. Wing-covers opaque, black, with the 

 costal area and expanded border unevenly spotted with white 

 or testaceous, the inner border, sutures, and some minute dots 

 on the longitudinal veins pale brown. Tergum brown, with a 

 pale streak on the middle and subcarinate line. J ? • 



Length to tip of wing-covers J 4J millims, $ 5 millims; 

 to tip of venter 4-4|^ millims. Width of pronotum 1|— If 

 millim, 



A pair of these curious little insects were sent to me from 

 Los Angeles by ]Mr. Coquillett. The genus resembles in form 

 the more delicate Aj^helonema, but it belongs to that part of the 

 group which approaches Tylana in the reticulated arrangement 

 of its venation, and the composition of its pectoral and abdom- 

 inal areas. The pronotum of the female is a broad crescent 

 projecting forwards in a well-rounded curve, while that of the 

 male is more angular in front. 



2. D. intermedia. New sp. 



Somewhat more robust than the preceding species, with the 

 wing-covers a little convex behind the middle. Face pale 

 greenish brown, becoming fuscous along the sides and on the 

 end of the epistoma, superior cheeks and all of the pectus 

 beneath the upper border yellowish green. Pronotum more 

 blunt than in the preceding species, in the ? almost truncate on 

 the apical portion of the anterior margin, and on "the middle of 

 this indented, the raised lines darker than the general brownish 

 surface. Scutellum pale brown, darker on the disk and middle 

 carina. Legs dark brown, pale on the base and apex of the 

 femora. Wing-covers black-piceous, with a large hyaline 

 triangular spot spreading across the clavus upon the adjoining 

 cellules, a band of the same color crosses the corium behind the 

 tip of clavus, and a similarly colored spot curves near the inner 

 part of the membrane, the veins all dark brown, and the flat- 

 tened border all around the wing-cover interruptedly brown and 

 hyaline. Tergum dull brown, with series of pale brown spots 

 along the sides, and a subcarinate interrupted line of the same 

 color along the middle ; venter yellowish, dark brown on the 

 apical segment. Length to tip of wing-covers 5-6 millims ; to 

 end of venter 4J-5 millims. Width of base of pronotum If 

 millim. 



