FULGOROIDEA OF TRINIDAD—FENNAH 439 
ment of Agriculture. Type, U.S.N.M. No. 56688, devoid of one teg- 
men, fore and middle tibiae and tarsi, and anal segment. This species 
is distinguished by its heavily infuscated tegmina and by the genitalia. 
Genus MYSIDIA Westwood 
Mysidia WrEstTwoop, Proce. Linn. Soc. London, vol. 1, p. 83, 1840. (Genotype, 
Derbe pallida Fabricius, designated by Kirkaldy, Entomologist, vol. 36, 
p. 216, 1903. ) 
Vertex rather broad, short, lateral margins converging anteriorly ; 
antennae cylindrical, expanding apically, heavily beset with sensory 
pits, a prominent notch on dorsal side at apex, in which terminal joint 
is inserted, arising therefore subapically; shoulder keels on pronotum 
absent or small; tegmina with M with three sectors, and with six or 
seven branches at margin, not even and parallel, Cu, with three sectors, 
the second forked before margin. Medium sized, usually pale colored, 
with a habit of carrying the tegmina and wings divergently upraised 
when at rest. 
MYSIDIA CINEREA, new species 
PLATE 9, FIGURES 1386-150 
Male: Length, 3.2 mm.; tegmen, 5.7mm. Female: Length, 3.6 mm.; 
tegmen, 7.6 mm. 
Vertex narrow in dorsal view, produced beyond eyes, about 1.1 times 
longer in middle than wide at base, 1.4 times wider across base than at 
apex, lateral margins slightly converging anteriorly, prominent; frons 
narrow, lateral margins gradually converging to below eyes then 
smoothly diverging to suture; clypeus about as long as frons, tri- 
carinate; antennae with second joint longer than broad, slightly com- 
pressed laterally, strongly excavated at dorsal insertion of apical joint, 
beset with large sensoria. Pronotum short, anterior margin trans- 
verse, posterior margin angularly excavated, lateral lobes rather large; 
tegulae large; mesonotum broad, somewhat inflated, median carina 
obsolete. Tegmen with 8 to 12 pustules near base of Sc+ R, three pus- 
tules near base of M. 
Head, thorax, legs, and abdomen pallid, eyes red; tegmina hyaline, 
all veins faintly and broadly overlain with brown, a clear ellipsoidal 
spot near apical fork of M,, with the vein tinged brown at fork, veins 
otherwise concolorous; wings hyaline, veins irregularly pale brown, 
apical cells clouded near margin, veins concolorous. Insect in life 
powdered pearly gray. 
Anal segment of male short in dorsal view, produced distally below 
anal opening into a subquadrate plate, bearing an elongated process 
at each posterior angle. Pygofer with posterior margin sinuate, slop- 
ing obliquely forward at sides, medioventral process absent or repre- 
