Tech. Series 2 2, Bureau of Entomology, U. S. Dept of Agriculture. 



Plate VIM. 



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Structure of Dipterous Larv/e. 



Fig. 129.— Drosophila ampelophila: Dorsal view. Fig. 130.— Drowphila ampelophila: Stigmal plate. 

 Fig. 131. — Lucitiascricata: Ccphalopharyngeal skeleton. Fig. 'i32.—Dacuscvcurbitx.- Cephalopharvngeal 

 skeleton. Fig. 13.3. — Drosophilaampflnphila: Cephalophar^'ngeal skeleton. Fig. 134. — Sarcophaoa iiirrrla: 

 Cephaiopharyngeal skeleton. Fig. I'.ib.— Drosophila ampelophila: Tip of body, side view. Fig. 130. — 

 Drowphila ampelophila: Ileadofpupa. Fig. 137. — Drosophila ampelophila: Anterior spiracle. Eolarged. 

 (Original.) 



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