380 PROCEEDINGS OF NATIONAL MUSEUM vol.99 



medial pointed coxal pec: in addition to the characteristic sickle-like 

 coxal spine." (Causey, op. cit.) 



DELTOTARIA CORONATA, new species 



Platk 2G, Figures 7, S 



Diagnosis. — Distinguished by the presence of three terminal proc- 

 esses on the telopodite blade and by the color pattern of black on the 

 back, with the keels and anterior margin of collum bright yellow. 



Description. — A somewhat longer and narrower form than the geno- 

 type. Length of holotype, 36, width, 8 mm. ; length of allotype, 37.5, 

 width, 8 mm. Width of body averages 21.5 percent of length.^ Keels 

 of the anterior and midbody segments with the corners rounded some- 

 what, those of the posterior segments with the posterior corners pro- 

 duced caudally. Keels of the penultimate segment small, not 

 enclosing anal segment or enclosed by those of the antepenultimate 

 segment. Dorsolateral edges of all keels slightly raised into ridges. 

 Repugnatorial pores dorsal in position, about at midline of keel. 



Collum slightly longer than succeeding segment, posterior margin 

 rather straight in males, but tapering cephalad toward the ends in 

 females. 



Anal segment triangular in dorsal aspect, longer than broad, the tip 

 truncate and bearing a few setae. Anal valves glabrous, with the 

 mesial margin of each produced into a ridge, not otherwise sculp- 

 tured. Preanal scale broadly triangular, wider than long, with a. 

 median and two lateral lobes. 



Bases of last pair of legs in contact mesial ly. Sternites very weakly 

 spined, trochanters and femora strongly spined ; legs with strong termi- 

 nal claws. Coxae of second pair of legs of males with prominent 

 rounded knobs. 



Gonopods of male relatively large and prominent. In situ the main 

 axis of the telopodite blade lies at a right angle to that of the body, 

 the gonopods at rest having the blades in contact and frequently 

 hooked together. The gonopod resembles that of D. brirnleii as fig- 

 ured by Causey (op eit., fig. 1) in general appearance but differs in 

 having three terminal teeth on the telopodite. as well as a prominent 

 knob between the coxal projection and base of the blade. Coxal pro- 

 jection large. 



Dorsum glossy brownish black, with caudolateral two-thirds of 

 keels, anterior margin of collum, and tip of anal segment lemon- 

 yellow. Underparts yellowish tan. Head dark brown, except margin 

 of labrum which is light brown; antennae light brown with distal 

 portion of each article white. Claws of legs brown, sternites of a 



* 27.5 percent in brimleii, according to CniiBey's mensurements. This is probably due to 

 the dried and doubtless telescoped condition of the lypes. 



