TITHRAUSTES.—POLYPCTES. 159 
2. Tithraustes deiphon, sp. n. (Tab. XIV. fig. 25.) 
Primaries pale brown, a large round white spot at the end of the cell and two minute white dots on the outer 
margin, a transverse hyaline streak extending from the base about halfway across the wing ; secondaries 
pure white, bordered with black along the abdominal and outer margins, and also very broadly at the 
apex: head, thorax, and abdomen brownish black above, dusky white beneath; antenne black ; palpi 
» brown ; legs very pale brown. Expanse 1} inch. 
Hab. Panama, Volcan de Chiriqui (Champion). 
This species is allied to 7. hemon, from which it is easily distinguished by its white 
hind wings. 
3. Tithraustes eteocles, sp. n. 
Primaries dark brown, clouded with black and shaded with white on the outer margin close to the apex, the veins 
all pale brown, a large round white spot at the end of the cell, a small spot below close to the anal angle, 
and a narrow longitudinal hyaline band extending from the base to about the middle ; secondaries black, 
with a wide central hyaline streak extending from the base to near the outer margin: head, thorax, and 
abdomen dark brown above, dusky white beneath; palpi and antenne black; tegule orange; legs 
brownish white. Expanse 13 inch. 
Hab. Guatemata, Cubilguitz 1000 feet (Champion); Nicaracua, Chontales (Belt). 
This species is allied to 7. deiphon, from which it is at once distinguished by its much 
larger size, the different position of the white spots on the primaries, and the very much 
blacker secondaries. I have only received two examples of this insect ; the one taken 
by Mr. Champion in Guatemala is considerably larger than that from Nicaragua, but 
in other respects they are identical. 
4. Tithraustes butes, sp. n. 
Primaries deep black, with a narrow longitudinal hyaline streak extending from the base almost to the middle, 
a transverse hyaline white band crossing from the costal margin to the anal angle, but not reaching the 
margin; secondaries hyaline, broadly bordered with black: head, thorax, and abdomen black above, dusky 
white beneath; antenne and palpi black; tegule bright orange-red ; legs brownish black. Male and 
female similar. Expanse 17 inch. 
Hab. Guatemata, Cubilguitz (Champion). 
I have only received a male and female of this distinct species. 
POLYPCETES, gen. nov. 
Head quite small; palpi rather long, slender, and curved back on to the head; antenne long and deeply 
pectinated in the male, simple in the female ; thorax and abdomen rather stout, the abdomen not extending 
beyond the wings; legs short and slightly stout ; primaries short and broad, the costal margin straight 
secondaries broad and much rounded at the apex. 
_ This genus is allied to Tithraustes, from which it differs greatly in the much shorter 
primaries and the wider and more rounded secondaries; I include in it nine new species, 
all from Central America, the genus ranging from Guatemala southwards to Panama 
and probably beyond. 
