1932 ] 
A New Species of Die wins 
19 
female emerged on the same day, and a third female on 
the 7th; two males emerged on the 8th. All five speci- 
mens apparently developed from a single larva of the 
Polistes. 
Explanation of Plate 1. 
Fig. 1. Nest of Polistes incertus Cress., from Punta 
de los Cocos, Cienfuegos, Cuba. 
Fig. 2. The same, showing back of comb. 
Fig. 3. Nest of Polistes cuhensis Lep., from Punta Pasa 
Caballo, Cienfuegos. 
Fig. 4. Nest of Polistes cubensis Lep., from Guabairo, 
Central Soledad, Cienfuegos. 
A NEW SPECIES OF DIC^LUS FROM SOUTHERN 
FLORIDA 
By H. C. Fall 
Tyngsboro, Mass. 
Dicaelus darlingtoni n. sp. 
Size, form and general aspect similar to purpuratus. 
Form oblong, moderately elongate; body beneath and head 
black, prothorax and elytra with deep purpureo-violaceous 
lustre, becoming rarely slightly bluish, opaque. Head vari- 
able in size, the difference being largely sexual in nature; 
in several measured examples of each sex the ratio of its 
width to that of the thorax being about .67 in the female 
and .63 to .64 in the male. 
Prothorax about three-fifths as long on the median line 
as the maximum width ; sides convergent apically, typically 
perceptibly sinuate behind the middle, but varying to con- 
tinuously arcuate and subparallel posteriorly, the base an- 
