41 



Erythroneura mallociii. new species 



Belongs in Group -i of my Key. being somewhat intermediate between 

 E. tccta and the remaining species ; vertex more pointed than in that 

 species and first apical cell small. Color of head and thorax above, pale 

 yellow ; sctitellum with basal triangles nearly black : tegmen with dusky 

 streaks which occupy nearly all of its surface except inner base of clavus, 

 base of corium. most of costa and distal parts of 3rd and -tth apical cells. 

 Face pale yellow, a v-shaped mark bounding it and clypeus, bluish black, 

 cheeks whitish ; body bluish black with pale yellow edgings. Length 3 mm. 



Holotype, $ , Meredosia, 111., May 30, 1917. (111. State Nat. Hist. 

 Survey.) 



Erythroneura lunata, new species 



Belongs to Group 4 of my Key, having the vertex without dots and 

 more pointed than in E. tecta and diverging greatly in coloration from any 

 of the other species. Ground color somewhat opaque whitish, more or 

 less tinged with reddish throughout and with the following distinct 

 pinkish-red markings : fine irrorations tending to be grouped in a trans- 

 verse band between anterior angles of eyes, and a short posterior median 

 vitta on head, a spot in each anterior angle, more or less of front margin, 

 and a median vitta on pronotum ; four posteriorly oblique red streaks 

 from costa of tegmen, one at front of corium, one at each end of costal 

 plaque and one more or less ramose overlying cross-veins. The scutellum 

 has the base narrowly, the basal triangles, and apex dusky to black, and 

 there are two triangular markings on middle of clavus, and two elongate 

 [wsteriorly directed markings on the corii just outside these, dusky to 

 black, that form when tegmina are folded a broken posteriorly open semi- 

 circle ; a dusky band extends from hind edge of costal plaque to radial 

 margin, leaving costa and most of the exceptionally long first apical cell 

 clear ; this band is interrupted near radial margin by the paler veins ; first 

 apical cell with a dark dot near apex, second nearly filled by a dusky mark- 

 ing; fourth dusky at base. Face with an irregular cross-band and short 

 median vitta reddish; genitalia tipped with black, and dorsum of abdomen 

 with two broad dusky vittae. Length 3 mm. 



Holotype, $, Urbana, 111., Nov. 11, 1915; and allotvpe, 5, White 

 Heath, 111., May 7, 1909. (111. State Nat. Hist. Survey.) ' 



E. aclys McAtee.— White Heath. May 7, 1909. 



E. illinoiensis var. illinoiensis Gillette, yellow form. — Hopedale, Oct. 

 2, 1917; Dongola, Aug. 24, 1916, on grape; and No. 1992. The latter 

 specimen is marked type but it is not referred to in the original description 

 so does not help to settle the question as to what specimen may properly 

 be regarded as the holotype of this species. 



E. morgani De Long, red form. — White Heath, April 28, 1916. 

 Yellow form: Kampsville, Aug. 21, 1913, on .sycamore; Meredosia, May 

 28, 1917 ; St. Joseph, Sept. 3, 1916, on grape. 



