68 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



vertex. Praesciitum rather flat, with an epiphysis corresponding to 

 that of pronotum. Forewings long and slender, nearly or quite 

 three times as long as broad, more or less acute at apex, often macu- 

 lated. Hind tibiae with two apical spines on inside. 



Type of genus. — Leuronota maculata Crawford. 



This genus is erected to include two of the species formerly placed 

 in AUotrioza, now in synonymy. The character of the pronotum is 

 still used somewhat as it was in AUotrioza, but it is more restricted 

 and more sharply differentiated from the usual type in Trioza. 



SYNOPSIS OF SPECIES. 



a}. Forewings conspicuously maculated, fully three times as long as broad. 



61. Genal cones descending; vertex with a deep fovea on each side of median line; 

 dorsum slightly arched; wings three times as long as broad. 



maculata Crawford. 



6^. Genal cones extending forward in same plane with vertex; vertex almost flat; 



dorsum scarcely arched; wings more than three times as long as broad, very 



narrow longipennis, new species. 



a^. Forewings not, or indistinctly, maculated, slightly less than three times as long 

 as broad; genal cones descending acutipennis Crawford. 



LEURONOTA MACULATA Crawiord. 



Figs. 180, 181, 352, 510. 



Trioza maculata Crawford '10b : 349. 

 AUotrioza maculata Crawford '11a: 446. 



Length of body 2.3 mm.; length of forewing 3.1. General color 

 greenish white to Ught brown; abdomen dorsally dark brown, ven- 

 traUy mottled with brown; forewings maculated with brown. 



Head not quite as broad as thorax, finely punctate; vertex emar- 

 ginate on posterior margin m front of pronotal epiphysis, with a 

 prominent foveal depression on each side of median line; genal cones 

 not quite as long as vertex, descendmg somewhat, abruptly smaller 

 and more divergent in apical haK, subacute at apex, pubescent. 

 Clypeus moderately large, visible from in front. Antennas about two 

 and a half times as long as width of head, slender; segments tipped 

 with brown, apical segment entirely brown. 



Thorax only slightly arched, more coarsely punctate than head. 

 Pronotum one-third as long as praescutum, anterior epiphysis con- 

 spicuous; pleurites large; pr^scutum sHghtly broader than long, as 

 long as scutum, with a short epiphysis on anterior margin in center; 

 scutum with three indistinct stripes. Legs slender. Wings hyaline, 

 three times as long as broad, subacute at apex, with a large brown 

 macula covering most of posterior apical half and often extending 

 to basal half; radial sector short; first marginal ceU larger than 

 second. 



Genitalia. — Male. — Genital segment moderately large; anal valve 

 large, simple, fusiform in lateral aspect, much longer than forceps, 

 pubescent; forceps broadest at base, curved forward, acute at apex 



