148 N. C. AGR. EXP. STA. BUL. 239 
margins and an area adjoining each inner eye margin, dull yellow; pronotum 
with a median and two lateral spots orange, variable in size; scutellum with 
at least a posterior yellow V-shaped marginal marking, at most with entire 
median area broadly yellow; forewings varying from unmarked to orange- 
spotted, at most with two spots in clavus and four spots on corium. Face, 
thoracic pleura, and legs unmarked yellow except a black spot at apex of 
head. 
Holotype male, Miguel, Cozumel, Quintana Roo, Mexico, July, 1959 
(N.L.H. Krauss); one male and one female, 2 miles NE of San Miguel, 
Cozumel, April 3, 1960 (J.F.G. Clarke) (USNM). One male, Fortin de las 
Flores, Vera Cruz, Mexico, 2,500-3,000 ft., August 14, 1963 (H. V. Weems) 
(SPBF). One male, Orizaba, Mexico, 2,500 ft., February 13, 1954 (R. R. 
Dreisbach). 
D. minutalis, n. sp. has more variability in color and size than most other 
species of the genus. 
16. Genus LISSOSCARTA STAL 
Figures 115-120 
Lissocarta Stal, 1869a:69. Type-species: Cicada vespiformis Fabricius, by monotypy. 
Length of male 14.0-17.0 mm, of female 15.5-17.0 mm. 
Head moderately produced, its median length from four-tenths to almost 
two-thirds its interocular width, and from less than one-fourth to almost four- 
tenths transocular width, anterior margin broadly rounded in dorsal view, 
ocelli located behind a line between anterior eye angles, each approximately 
equidistant from median line and adjacent anterior eye angle, surface of 
crown convex, lateral clypeal sutures extending onto crown, almost attaining 
ocelli; antennal ledges with anterior margins obliquely rectilinear in lateral 
view, without a concavity; face with clypeus very strongly convex, trans- 
clypeal suture incomplete, clypellus not tumid, its contour continuing curved 
profile of clypeus. Other head characters as in Dilobopterus Signoret. 
Thorax with lateral margins parallel; surface with sculpturing, other 
characters as in Dilobopterus. Forewing completely hyaline, veins distinct, with 
four elongate apical cells and with base of fourth opposite or slightly more 
proximal than base of third apical cell; wings of female in rest position ex- 
ceeding apex of ovipositor. Hindwing much shorter than forewing, with a 
slightly enlarged jugal lobe which is partially separated from remainder of 
wing by an excision. Posterior meron exposed with forewing in rest position; 
other thoracic characters as in Dilobopterus. Abdomen strongly constricted at 
base. 
Male genitalia: Pygofer well produced, with macrosetae numerous, usually 
not uniformly dispersed, lacking in basidorsal area, processes present or ab- 
sent. Plates slender, elongate, triangular, separate throughout their length, 
with longitudinally uniseriate macrosetae and with a number of microsetae. - 
Style extending posteriorly considerably beyond apex of connective without a_ 
preapical lobe. Connective T-shaped or short Y-shaped. Aedeagus sym- 
metrical, with or without processes. Paraphyses asymmetrical. 
