OF WASHINGTON. 143 
mens of the common Cyrtomenus, Stiretrus, and other conspicuous forms. 
Among the TingitidtK is a representative of the South American genus 
Acanthochila. heretofore not discovered in North America, which we con- 
sider important enough to describe in this place. 
ACANTHOCHILA Stal. 
A. exquisita. New sp. Form similar to that of Gargaphia ; ovate, the 
wing-covers transparent throughout, excepting the clavus and adjoining 
field of the corium ; abdomen and pectus black, the former polished, the 
latter opaque; head rounded, impunctate, set with rows of minute bris- 
tles, unarmed; vertex grooved, having a white carina each side at the 
suture bounding the inner side of the eyes; eyes round, brown; antennae 
testaceous, moderately slender, rather longer than the head and thorax 
combined ; clavate, the basal joint very thick, shorter than the head, armed 
with stout, strong bristles ; the second joint almost as thick, bristly, sub- 
conical; third, very long, slender, set with slender erect hairs; fourth, 
fusiform, not as thick as the basal ones, but longer than both conjoined, 
bristly, with the apical half blackish ; bucculae testaceous or ochreous; 
rostrum and tylus ochreous, the former extending behind the middle 
coxae; thorax either ochreous or blackish, with ochreous lateral network, 
the surface with remote sunken punctures, and short, sparse setae; lateral 
margins slightly expanded into curved lobes, with a series of five quad- 
rangular cells each side, and having the outer edge armed with six or seven 
long acute spines tipped with black; anterior lobe small, deeply indented, 
bearing a slender pale carina along the middle, which is less distinctly 
carried back on the posterior lobe; the posterior lobe dull, trapezoidal, 
sub-acutely deltoid behind, white at tip; pectoral pieces more or less mar- 
gined with testaceous; the ante-pectoral flaps remotely granulated ; legs 
testaceous, clothed with slender bristles ; scutellum minute, black, covered 
at base by the truncated tip of the produced pronotum ; hemelytra coria- 
ceous throughout, an oval area at base, which includes the clavus; this 
portion is coarsely sunken punctate ; exterior to this the sagenae have 
two, or at most three, series of net-work areoles, which increase in size 
posteriorly, so that six series of irregular rhomboidal cells form the whole 
width of the corium behind the middle; the costal margin has a series of 
about seventeen gradually diminishing spines, extending from the con- 
tracted base to beyond the middle; the veins of the surface generally set 
with minute bristles throughout; length to tip of abdomen 2^, to end of 
hemelytra 3-3^ millims. ; width across the pronotum scarcely I millim. 
Only four specimens of this interesting insect were present in this col- 
lection, three of which were females and the fourth a male. The male is 
more transparent, and has more clean cut black markings than any of the 
females. 
The specimens were found near Cape Florida in the month of May. 
Mr. Schwarz stated that as to the Coleoptera the derivation of 
