. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 222 BULLETIN : MUSEUM OP COMPARATIVE ZOOLOGY Histological preparations reveal that the gelastocorid sensilla are composed of three types of cells (Fig. 6) : a distal cap cell (CC) (Snodgrass, '35; "Deckzelle" of German authors; possibly the "attachment cell" of Gray, '60), an intermediate enveloping cell (EC) (Snodgrass, '35; "Hiillzelle" of German authors),. Fig. 6. Frontal section through the right side of the niesothorax, show- ing the mesothoracic discolopodial organ and its relation
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 222 BULLETIN : MUSEUM OP COMPARATIVE ZOOLOGY Histological preparations reveal that the gelastocorid sensilla are composed of three types of cells (Fig. 6) : a distal cap cell (CC) (Snodgrass, '35; "Deckzelle" of German authors; possibly the "attachment cell" of Gray, '60), an intermediate enveloping cell (EC) (Snodgrass, '35; "Hiillzelle" of German authors),. Fig. 6. Frontal section through the right side of the niesothorax, show- ing the mesothoracic discolopodial organ and its relation to the dorsal trachea and sensory membrane (reconstructed from several consecutive serial sections). Sclerotized structures are shown in solid black. Lateral region is at the right, medial region at the left. X4:2f>. and a proximal, basal sensory cell (SC) (Snodgrass, '35; "Sin- neszelle" of German authors). Between the enveloping cell and the cap cell lies a spindle-shaped sensory rod or scolops (SL) (Snodgrass, '35; "Stiff of German authors; "scolopale" of Gray, '60). The appearance and position of these elements in the sensillum corresponds, in general, to the descriptions of pre- vious authors (Eggers, '28; Wotzel, '33; Larsen, '57) who examined other Ileteroptera by means of the light Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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