OTCLOPIOEKA. 53 



Genus 1. Cyolopioeea, Brady (1872). 



Cephalotliorax broadly ovate ; abdomen and last 

 segment of thorax mucli narrower ; head united with 

 first segment of thorax ; abdomen of the male 4-, of the 

 female 3- jointed. Anterior antenna shorter than the 

 first somite, 19- or 20-jointed ; posterior 3-jointed, 

 and provided with a very small secondary branch. 

 Labrum and labium produced into a short and wide 

 suctorial mouth. Mandible stilet-shaped, and provided 

 with a simple filiform palp ; maxilla two branched, the 

 branches slender, digitiform, and setiferous at the apex. 

 Anterior foot-jaws 2-, posterior 4- jointed, nearly alike 

 in general shape and in size, strongly clawed and 

 adapted for prehension. First four pairs of feet short 

 and stout, both branches composed of three joints ; 

 fifth pair small, 2-jointed ; ovisacs two. 



The many-jointed antennae, together with the very 

 well marked characters of the mandibles, maxillae, and 

 foot-jaws, separate this genus at once^ and very 

 decidedly, from the foregoing. It seems, indeed, to 

 occupy a position intermediate between Lichomolgus 

 and AcontiopJiorus, approaching the latter genus in the 

 characters of the antennae and swimming-feet, but 

 differing considerably as regards the mandibles and 

 the extent of development of the siphonal mouth. 

 From Artotrogus it differs only in the character of the 

 mandibles (the extremities of which show an approach 



