CICADELLINAE: PART 2, NEW WORLD CICADELLINI 937 
best, on the crown. Also, instead of the four pairs of vertical black stripes pre- 
sent on the face of fraterna, the face of mediolineata may be almost entirely 
black, marked minutely with yellow, or yellow (a somewhat teneral specimen) 
marked with black but without the vertical stripes. The two species differ 
markedly in the structure of the aedeagus, also, with fraterna having an un- 
paired aedeagal process in contrast to the large paired processes of mediolineata 
(fig. 751f). In the last character, fraterna is similar to A. dampft, n. sp., but dif- 
fers in the pygofer processes and the paraphyses. 
Apogonalia omani, NEW SPECIES 
FicurE 757 
Length of male 7.6-7.7 mm, of female 8.1 mm. Head conically produced, 
with median length of crown varying from more than one-half to two-thirds 
interocular width and from almost four-tenths to slightly greater than four- 
tenths transocular width; antennal ledges with anterior margins oblique and 
slightly concave in lateral view; clypeus broadly convex, not flattened 
medially, muscle impressions distinct. Pronotum with posterior portion trans- 
versely striate; scutellum with transverse striae behind transverse sulcus; fore- 
wing with membrane including all of inner three apical cells and apical half of 
fourth apical cell; veins distinct. Male pygofer with posterior margin very 
broadly convex, surface with few macrosetae located mostly in an irregular 
row parallel to upper portion of posterior margin, with a pygofer process on 
each side arising ventrally and anteapically, broader than usual in the genus, 
extending mesally and crossing median line, abruptly narrowed apically; 
plates unusually short for the genus, with irregularly biseriate small macro- 
setae; style extending posteriorly not nearly as far as apex of connective, trun- 
cate apically; aedeagus with shaft short, directed posteriorly and curved very 
slightly dorsally, with a pair of conspicuous processes arising ventrally on 
shaft, directed ventrally, broadened anteapically in lateral view and curved 
anteroventrally at their narrowed apices, atrium with a short acute process 
located ventrally on each side; paraphyses represented by a short, median, Y- 
shaped sclerite. Female abdominal sternum VII with posterior margin much 
less produced medially than in other species in the genus; ovipositor with 
second valvulae each strongly convex at apex; genital chamber without a me- 
dian sclerite (specimen slightly teneral). Other structural characters as in 
generic description. 
Color of crown, pronotum, and scutellum black, with numerous small 
yellow spots and irrorations, the yellow markings not forming patterns of 
specific importance; forewing dull red, with a pattern in form of an oblique 
ivory-colored loop which is open on clavus, closed on corium, the ivory mark- 
ings with irregular markings which are bordered with black; face black, 
_ minutely marked with yellow; thoracic pleura yellow with black markings; 
legs pale brown to deep brown. 
Holotype male, and one additional male, Santa Rita Mountains, Arizona, 
June 27, 1933 (P. W. Oman); one female, same locality, September 10, 1933, 
