Crampton: Sclerites of the Head 103 
PLATE VI. 
Frontal view of head of Berotha piepersii (Neuroptera). 
Posterior view of mouthparts of larval Myrmelionid (Neuroptera). 
Frontal view of head of Polystochoetes (Neuroptera). 
Posterior view of mouthparts of larval Psychopsis elegans (Neuroptera). 
Posterior view of mouthparts of larval Ascalaphid (Neuroptera). 
Frontal view of head of Dilar corsicus (N europtera). 
Posterior view of head of larval Megaxyela (Hymenoptera). 
Ventral view of head of larval Climacea (Neuroptera). 
Posterior view of head of larval Chrysopid (Neuroptera). 
Frontal view of head of Ithone fusca (Neuroptera). 
Frontal view of head of Oliarces clara (Neuroptera). 
Posterior view of head of larval Neurotoma (Hymenoptera). 
Posterior view of head of larval Cowenzia hageni (Neuroptera). 
Frontal view of head of Nemoptera sinuata (Neuroptera). 
Frontal view of head of Mantispa pagana (Neuroptera). 
PLATE VII. 
Frontal view of head of Osmylus maculatus (Neuroptera). 
Frontal view of head of Sisyra (Neuroptera). 
Frontal view of head of Climacea (Neuroptera). 
Frontal view of head of Conwenzia hageni (Neuroptera). 
Frontal view of head of Psectra dipterum (Neuroptera).: 
Frontal view of head of Stenosmylus tenuis (Neuroptera). 
Frontal view of head of Chrysopa perla (Neuroptera). 
Frontal view of head of Proismus strigatus (Neuroptera). 
Frontal view of head of Nothochrysa evanescens (Neuroptera). 
Frontal view of head of A pochrysa bellula (Neuroptera). 
Frontal view of head of Euporismus albatrox (N europtera). 
Frontal view of head of Miodactylus pubescens (Neuroptera). 
Frontal view of head of Acanthaclistes americana (Neuroptera). 
Frontal view of head of Psychopsis insolens (N europtera). 
Frontal view of head of Nymphes (Neuroptera). 
Frontal view of head of Ululodes (N europtera). 
Frontal view of head of Stilbopteryx (Neuroptera). 
PLaTE VIII. 
Posterior view of labium of Cicada (Homoptera). 
Lateral view of head of Belostoma (Hemiptera). 
Posterior view of mouthparts of Bracon liberator (Hymenoptera). 
Frontal view of head of Macroxyela (Hymenoptera). 
Frontal view of head of larval Pyrausta ainsleii (Lepidoptera). 
Posterior view of mouthparts of Macroxyela (Hymenoptera). 
Posterior view of mouthparts of Nymphes (Neuroptera). 
Posterior view of labium of Panorpa lugubris (Mecoptera). 
Posterior view of mouthparts of Asyndulum montanum (Diptera). 
Posterior view of mouthparts of Nannochorista dipteroides (Mecoptera). 
Posterior view of mouthparts of Bittacus (Mecoptera). 
Posterior view of mouthparts of Nemoptera sinuata (Neuroptera). 
