CAMBALOID MILLIPEDS — LOOMIS 



63 



Description. — Body long and slender, 9 to 13 mm long and 0.6 

 to 0.9 mm broad; cylindrical, not at all flattened as seen in cross 

 section; number of segments 32 to 40; living color light grayish 

 white with a series of internal orange spots, the repugnatory glands, 

 showing through the body wall. 



Head with the antennae quite short and stout (fig. 20, a), arising 

 from the dorsolateral surface, the basal joint almost entirely exposed 

 from above; joint 2 longest; joints 5 and 6 subequal, next in length; 

 joints 3, 4, and 1 decreasing in order named; joint 5 broadest. 



Figure 20. — Leiodere nana, new genus and species : a. Antenna ; b, anterior portion of 

 head ; c, gnathochilarium of male ; d, head and first five segments, lateral view ; e, mid- 

 body segment, posterior view ; f, gonopods, anterior view. 



Clypeus with two setae on each side. Labrum almost continuous 

 with the clypeus, scarcely depressed, with 14 setae across the base. 

 Anterior portion of head shown in figure 20, h. Gnathochilarium 

 as shown in figure 20, c. 



First segment little longer than the next two segments together; 

 ilie anterior corners broader than a right angle and slightly pro- 

 duced forward ; lateral marghi obliquely descending to near the hind 

 angle, where it is bent horizontal!}^, the margin with a raised rim; 

 posterior corners square, slightly curved under the side of the body, 



