170 



PREDACIOUS AND PARASITIC 



Heterotoma (Latr.). 



Loxops (Fieb.). 



79.— Tibiae with spine like hairs . Orthocepkalus {Y'l&h.) 



80.— Tibise without spine-like hairs ..Heterocordylus (Fieb.). 



81. — Species not clothed with golden or sil- 

 very deciduous, scale-like pubescence. 

 82. — Second joint of antennae much dilated 



and flattened 

 83. — Second joint of antennae not dilated 



and flattened 

 84. — Second joint of antennae very long, one- 

 half longer than the third and fourth 



together 

 85. — Second joint of antennae, not or scarcely 



longer than the third & fourth together 

 86. — Third and fourth joints of the rostrum, 



together longer than the second, not 



incrassated 

 87. — Third and fourth joints of the rostrum, 



together not longer than the second, 



each slightly thickened towards their 



juncture 

 88. — Wing cell with a hook-hke nerve (want- 

 ing in some specimens of Asciodetna 



obsoletum) 

 89. — Elytra opaque, dull, or at most only very 



slightly shining, never clothed with 



pale, deciduous, scale-like pubescence. 

 90. — Tibise spotted with black 

 91. — Tibiae not spotted with black 

 92. — Claws exceedingly short, strongly curved, 



with an acute tooth at the base 

 93. — Claws not very short and not strongly 



curved, without an acute basal tooth 

 94. — Arolia longer than the claws ...0?iychu)ne?ius{R.&\xl.). 



95. — Arolia shorter than the claws 

 96. — Rostrum very long, extending beyond 



the posterior coxae ... ... Amblytylus {Yiob.). 



97. — Rostrum not very long, not extending to 



the posterior coxae 



Orthotylus (Fieb.). 



Hypsitylus (Fieb.). 



Oncotylus (Fieb.). 



Macrotylus (Fieb.). 



