The Mouth-parts of th Nemocera. By W. IVcsche. 3 



{I) Suctorial. 



Mycetophilidae. 



Psychodida*. 



Culicida?, the males ouly and the genus Corethra. 



Rhyphidae. (Type J,'. /< nestralis Scop.) 



Tabanida?, the males only. 



Lonehopteridae. 



Bombylida-. 



Platypezidae. 



Syrphida?. 



Group 3. — The mandibles are fused into the labium, the laciniaa 

 and galas of the maxilla; and the labial palpi are aborted. 

 Cceidomyidas. 

 Chironomyidce, except the genus Ceratopogon. (Type C. 



plumosus L.) 

 Tipulidae. 

 Stratiomyida?. 

 Conopodre. 



(''roup 4. — The mandibles are fused into the labium : all parts 

 of the maxilla? except the stipites and cardines are aborted, or if 

 remnants of the laeinire are present, the stipites and cardines are 

 aborted or vestigial. The palpi present are labial, and the tracheae 

 of the paraglossia (labella) are only moderately developed. 



P>ibionida\ (Type B. hortulanus L.) 



Dolichopodidce. 



Phoridffi. 



Group 5. — Th'e mandibles are fused into the labium ; all parts 

 of the maxillae except the stipites and cardines are aborted, the 

 palpi present are labial, the trachea} of the paraglossa? are well 

 developed. 



(a) Willi remnants of maxillary palpi. 



Some Tachinida. 



Some Muscida?. (Type 31. domestica L. 



Some Anthomyidae. 



Some Chloropoda. 

 (h) With no remains of maxillary palpi. 



Pipunculida, with exceptions. 



Some Tachinida \ Particularly highly modified gen- 

 Some Muscidae / era, such as Siphona or Stomoxys. 



Some Anthomyidae. (Type C. crythrocephala Rig.) 



Cordyluridae. 



Ortalidae. 



Trypetida?. 



Lonchaeidae. 



Some Chloropodae. 



Hippo boscida. 



=; 2 



