. Annals of applied biology. Biology, Economic; Biochemistry. E. Hargreaves 309 Legs (Fig. 11). These consist of five segments, homologous, I should say, with the coxa, trochanter, femur, tibia and tarsus, of the legs of other insects. The coxa is small with a large spine on its inner side, and the trochanter comparatively large. The tibia has a large spine on its outer side at about the middle of its length. The tarsus is very small and seems to consist of two segments, the first one bearing a long curved spine externally, the second one terminating in a kind of pad, and possibly being the ho
. Annals of applied biology. Biology, Economic; Biochemistry. E. Hargreaves 309 Legs (Fig. 11). These consist of five segments, homologous, I should say, with the coxa, trochanter, femur, tibia and tarsus, of the legs of other insects. The coxa is small with a large spine on its inner side, and the trochanter comparatively large. The tibia has a large spine on its outer side at about the middle of its length. The tarsus is very small and seems to consist of two segments, the first one bearing a long curved spine externally, the second one terminating in a kind of pad, and possibly being the homologue of the pulvillus or paronychium of the adult, in which case it would not count as one of the actual tarsal Fig. 11. Antennae (Fig. 12). Each consists of three segments—the basal one is broad and short; the second is much longer and thinner, with a spine placed near the middle and another at the distal end. The terminal segment is twice the length of the second and terminates in a fine point; there is also a spine at about a quarter of the distance from the distal end. Vasiform orifice (Figs. 13 and 14). In one of my mounts I was fortunate enough to obtain a side view, and was able to see the hind- gut opening dorsal to the lingula. The lingula is a finger-shaped organ, and just anterior to it. overlying the base, is a plate, the operculum. The anus opens between these. Spines. In addition to the marginal spines there are five pairs situated as follows: a dorsal short pair over the anterior end of the mouth-parts; a ventral long pair near the middle of the mouth-parts; a ventral long pair beneath the corners of the vasiform orifice; a dorsal 21—2. 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 Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick
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