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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 106 I 



pro thorax which is longer than wide, and has more numerous cross- j 

 veins and branches to Rs in the wings. 



Head (fig. 8,a,i): Antennae (fig. 7,c,f) arising mesad of compound 

 eyes and articulated to single antennal sclerite on lateral side of each 

 socket, scape enlarged, pedicel smaller than scape and only slightly, 



Figure 7. — Head appendages. A, Sisyra vicaria (Walker), maxilla with palpus; B, sam! 

 labium, ventral view; C, same, antennal segments eight and nine; D, same, basal antenn 

 segment; E, S. fuscata (Fabricius), basal antennal segment; F, S. apicalis Banks, bas 

 antennal segment; G, Climacia areolaris (Hagen), maxilla with palpus; H, same, labiui 

 ventral view; I, Sisyrina nirvana Banks, terminal segment of maxillary palpus; J, Neurorth 

 jallax (Rambur), maxillary palpus. Abbreviations: Cd, cardo; Ga, galea; Lc, lacinia; PI 

 palpus; Prm, prementum; Psm, postmentum; St, stipes. 



