The Mouth-parts of the Ncmoccra, etc. By W. Wesche. 41 



Morellia hortorum Fin. 

 Policies lardaria F. 

 Hyetodcsia lucorum Fin. 

 H. obscura Mg. 

 R. Iceta Fin. 

 H. perdita Mg. 

 //. bascdis Ztt. 

 H. sudetica Sclmbl. 

 Mydea impuncta Fin. 

 Spilogastcr communis Dsv. 

 $. Jlagripcs End. 

 $. idiginosa Fin. 

 Hydrotca occulta Mg. 

 i/! dentipes F. 

 if. mcteorica L. 

 Ophyra leucostoma W. 

 Hylemyia strigosa F. 

 iT". cardui Mg. 

 iT". pullula Ztt. 

 Lasiops stemciema Kov. 

 Anthomyia pluvialis L. 

 J. radicum L. 

 ^4. sulciventris Ztt. 

 Pegomyia bicolor W. 

 Homalomyia canicvlaris L. 

 i^T. hamata Mcq. 

 Azelia macquartii Stceg. 



All these insects are suctorial. 



EXPLANATION OF PLATE Till. 



1. Trophi of Seoptera vibrans L. Showing the supposed ludiinenfs of mandibles. 



Dorsal view. 



2. Trophi of an undetermined species of Cldorops. 



3. Diagram of the head of Melophagus ovinus L. This is drawn as a transparent 



object, and shows the bulb of the labium and the cardiacs of the maxillae 

 showing through the chitin of the head. 



4. The teetli on the end of the labium of M. ovinus. 



5. Maxilla of Balioptera combiuala L. 



(5. Trophi of Saltella Scutellaria Flu. Showing the four palpi and the palpigers. 

 Dorsal view. 



7. Trophi of Ephydra coarctata Fin. Lateral view, showing the curious trachea;. 



8. Maxilla of Mosillus subsultans F. Showing the palpus, the atrophying lacinia, 



and the alteration in the cardo and stipes. 

 '.). Organ in the submentum of Drosophila funebris F. Gizzard (?). 



10. Maxilla of D. funebris. 



11. Trophi of Borborus cquinus Fin. Lateral view, showing the labial palpi, a 



palpiger, and a maxillary palpus. 



12. Tip of the labium of Glossina morsitans Westw. Showing the teeth and tho 



ufhnity to M. ovinus and H. irritants. 



