RUDRA.—ANOKA. 255 
Females. 
a. Abdomen marked with black and yellow in very strong contrast, the black 
markings consisting of a marginal line, a central bar (the anterior half 
dilate and scalloped on the margins, narrowed in the posterior half, with 
two lateral branches forming a slender L-shaped bar), and a transverse bar 
between this and the spinners. Vulval area circular, indented in the 
centre of the posterior margin, with two orifices in the anterior third of 
the area, four diameters apart, with two hypodermal ducts, extending to 
the posterior third, where they become convoluted. . . . . . . « geniculata, Peckh. 
6. Abdomen very like that of R. geniculata (sec. Peckham); but, according to 
his figure, the black markings on the abdomen are more scattered. Vulval 
area with a large transverse oval cavity anteriorly, the posterior margin 
slightly emarginate in the middle, with a small rounded cusp between 
the posterior margin of the cavity and the posterior margin of the vulval 
area ee ee ee ee wwe... polita, Peckh. 
1. Rudra geniculata, (Tab. XXII. figg. 13, 13 ae, 2.) 
Rudra geniculata, Peckh. Proc. Nat. Hist. Soc. Wisc. 1885, p. 77, t. 2. figg. 9, 9a (2) (Dec.)'; 
Occas. Papers Nat. Hist. Soc. Wise. ii. 2, p. 121, t. 12. figg. 83-36 (9) (Nov. 1894) ?. 
Type, 2, in coll. Peckham. Total length 5 millim. 
Hab. Guatemsta! 2, Escuintla (Sarg). 
2. Rudra polita. (Tab. XXII. fig. 14, 2.) 
Rudra polita, Peckh. Occas. Papers Nat. Hist. Soc. Wisc. ii. 2, p. 121, t. 12. figg. 4, 4a (?) 
(Nov. 1894)". 
Type, 2, in coll. Peckham. Total length 7 millim. 
Hab, Guatemata}. 
Our figure of the vulva of this species is taken from Peckham’s work. 
ANOKA. 
Anoka, Peckham, P. Z. 8. 1893, p. 701. 
Type Anoka vernalis, Peckham. St. Vincent, Antilles, 
The following characters are taken from A. grenada, 3 (Guatemala) :—Tibia and protarsus iv. with spines 
beneath, the former with a single small one towards the base on the outer side, and two at the apex; the 
latter with a single median spine on the inner side, and three at the apex beneath. The spines beneath 
the tibia and protarsus i. very short, scarcely longer than the diameter of the segment, those beneath the 
former situated on the anterior half of the segment. Coxe i. rather closely situated at their base, about 
half a diameter apart. Sternum, in length, rather over twice its breadth, oval, gradually dilate behind. 
Leg i. long, tibia not incrassate. 
The two Central-American forms may be recognized as follows :— 
