TRITOMURUS. 141 



little longer than either of the two next, which are of 

 equal size, the fifth longer than the third and fourth 

 together. Head broader than the body. Antenna3 

 longer than the body, 4-jointed, the first and second 

 short, thick, and cyhndrical; the third cylindrical, 

 very long ; the fourth short, of the same length as the 

 second. Eyes none. The two branches of the caudal 

 appendage, 3-jointed, setose ; the first segment shorter 

 than the base, the second somewhat longer, both 

 cylindrical, the third as long as the first, ending in a 

 point. Anal processes none ? 



Tritomurus scutellatus, Frauenfeld. 



Tntomurus scutellatus, Frauenfeld. Yer. d. Zool. Bot. Yer Wien., 



1854. 



This species much resembles T. phimbeus. In 

 spirits of wine it is pale lead colour, and shines like 

 silk. On the crown of the head, behind the antenna3, 

 is a shield-like, black patch, rounded behind, angular 

 in front. 



Tritomurus meter ocephaliis, Kolenati. 



Tritomurus viacrocephalus, Kolenati. Sitz. d. k. Ak. d. Wiss. Wien, 



1858. 



Cylindrical, silvery white, with a trace of yellow, 

 antennee, feet, and spring deeper yellow, head large, 

 crown arched, without black patches, body covered 

 with short hairs ; prothorax short but complete ; meta- 

 thorax with a long bristle ; abdominal segments six in 

 number, first and last the longest, intermediate ones 

 short, subequal; antennas rather more than half as 

 long as the body, first two segments short, third long 

 and with fourteen rounded projections on the under 

 side. 



Length of body '0001 meter. 



Common in summer in the Slouper Cave in Moravia. 



