292 



Body round E. ostrinus (C. L Koch). 



Body oval 3. 



Posteriorly broad E. halleri(G. etR. Cau.). 



Anteriorly broad E. pyrenakus Oudius. 



Hairs on sternal shield as usual. . 5. 

 Hairs on sternal, rnetasternal, ventral 



shields and coxae 2 and 3 falciform 8. 

 Post. half of dorsurn and venter without 



broom of bristles 6. 



Post. half of dorsurn and venter with 



nuraerous hairs forming a broom . 7. 



Coxae 4 close together E. petrophilus Berl. 



Coxae 4 far remote E. crinitus (C. L. Koch). 



7 Only one species E. bosschai Oudms. 



8 Only one species E.falcinellus(G.Can.). 



22. Key to the genera of Laelaptiiiae. 



i No peritrema 2. 



( Peritrema present 3. 



!Legs 1 with ambulacrum .... Greenia Oudms. 

 Legs 1 without ambulacrum . . . Iphiopsis Berl. 

 Legs 1 with ambulacrum .... 4. 

 Legs 1 without ambulacrum . . .10. 

 9 femur 4 without spur .... 5. 



9 femur 4 with spur 9. 



Maudibles chelate in both sexes. . 6. 



(ƒ mandibles not chelate .... 8. 



cf with sterni-giniti-ventri-anal shield Hypoaspis Cau. 



(ƒ with anal shield separate (degene- 



rate forms) 7. 



Epistoma with long feathered mucro Emeus Mégn. 

 Epistoma scarcely pointed .... Seiidus Berl. 

 9 mandibles normal; tf sl style . . Laelaps C. L. Koch. 

 9 mandibles a pin, with an append- 

 age dentate on outside . . . Berlesia G. Can. 





