. Smithsonian miscellaneous collections. Fig. 8.—Portion of left elytron (A and B) and left wing (C) of Mexicanbean beetle, showing position of olfactory pores as indicated by numbers z to .^and letters a to d on dorsal surfaces. A shows relative sizes of peduncle ofelytron and group i when compared with size of basal margin (BM) of elytron;A and C, X 12; and B, X 67. The lower side of A and B is the outer marginof the elytron. C, costa; MD, muscle disk; Me, media; R, radius; RP, radialplate; Sc, subcosta; ScH, subcostal head. NO. I( SENSE ORGANS OF COLEOPTERA McINDOO 47 winged species examine
. Smithsonian miscellaneous collections. Fig. 8.—Portion of left elytron (A and B) and left wing (C) of Mexicanbean beetle, showing position of olfactory pores as indicated by numbers z to .^and letters a to d on dorsal surfaces. A shows relative sizes of peduncle ofelytron and group i when compared with size of basal margin (BM) of elytron;A and C, X 12; and B, X 67. The lower side of A and B is the outer marginof the elytron. C, costa; MD, muscle disk; Me, media; R, radius; RP, radialplate; Sc, subcosta; ScH, subcostal head. NO. I( SENSE ORGANS OF COLEOPTERA McINDOO 47 winged species examined, 11 had only one group of pores on eachwing, 21 had two groups on each wing, 12 had three groups on eachwing (C, 2, J, and //), and 3 had four groups on each wing. The. Fig. 9.—Position of sense organs on legs of adult beetles; dots, marked 5and 6, and c and /, being olfactory pores; and St, tactile hairs. A to F, legs ofMexican bean beede, X 12; and G, distal end of tibia from front leg of Ep-icautamarginata. showing 5 olfactory pores on tibial spine. The drawing of each legin which the tarsus is shown represents the outer surface and the portion of legwithout tarsus represents the inner surface of the same leg. A, right frontleg; B, left front leg; C, right middle leg; D, left middle leg; E, right hindleg; and F, left hind leg. number of pores on a pair of wings ranged from 130 to 982. Thenumber of pores counted on all six legs of an individual ranged from49 to 341. There were usually two groups of pores on each trochanter(fig. 9, 5 and 6). Sometimes a pore was found at the proximal end of 48 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 82 the femur. A few pores were always found at the proximal end ofeach tibia {e and /), and sometimes pores were
Size: 1247px × 2004px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
