from the Rio Nautla, State of Vera Cruz. dl 
strong and thick, decussate; vibrissee moderately strong and 
decussate. Wings very broad at base, 3 millim. broad in 
the larger specimens by about 5 millim. long, rather strongly 
but irregularly yellowish fuscous on costal half, whitish on 
inner portion, rather blunt and rounded at tip. The costal 
fuscous area contains three whitish or hyaline streaks, the 
darkest fuscous being in vicinity of stigma and containing 
but one streak of hyaline. The other two streaks are in 
second costal cell and tip of submarginal. Third vein bowed 
inward on apical portion, so that the long petiole of apical 
cell forms a right angle with apical cross vein, Hind cross 
vein distinctly but not strongly sinuate, distinctly nearer to 
bend of fourth vein than to small cross vein, the bend of 
fourth being sharply or abruptly rounded, with the two 
sections running from the bend at right angles and of equal 
length. The petiole of apical cell ends well behind the 
actual centre of wing’s tip, owing to its bending posteriorly 
out of a straight line on apical portion. The hind cross vein 
is oblique, and with its peculiar curvature, aided by the 
curvature of fourth and fifth veins, gives the discal cell a 
shape very similar to that of a gunstock. 
Front about as wide as eyes anteriorly, hardly or but 
slightly narrower posteriorly, with a wide velvet-black vitta 
slightly wider behind. Orbital margins of front and whole 
of face silvery white, the orbits with a slight golden shade, 
especially on front. Antenne blackish, reaching but little 
more than halfway to oral margin; third joint hardly twice as 
long as first. Palpi brownish, slender, clubbed at the end. 
Occiput and pleure brassy-silvery pollinose. Thorax shining 
black, so marked with pollinose as to show on preescutum five 
silvery and four rust-black or deep black vitta, the three silvery 
and two black median ones being the most clearly defined, 
and the lateral silvery ones terminating in the humeri. ‘The 
silvery vittes are sometimes golden-tinged. These vitte are 
more or less distinctly continued on mesoscutum behind 
suture, the scutellum showing some silvery pollen apically 
when not discoloured. Abdomen blackish or brownish, 
elongate-oval, flattened, the whole with more or less of a 
metallic purplish tinge, with more or less of a thin coating of 
very fine pale brassy or ashy pollen, with first two segments 
more or less pale subtranslucent brownish yellowish, except 
a median vitta which is continued indistinctly on other 
segments. ‘The yellowish colour is often faint, sometimes 
obsolete ; when present it leaves normally a narrow posterior 
margin of brown on second segment. Legs black or brownish 
black, the knees, tibize, and tarsi sometimes varying to lighter 
