dc:description"Figs. 12-17. Megarcys larval head-pronotal pattern. 12. M. irregularis, White River, Washington. 13. M. signata, Mosquito Creek, Colorado. 14. M. subtruncata, Ohanopecosh River, Washington. 15. M. subtruncata, Butte Creek, California. 16. M. subtruncata, Quinn Spring, Oregon. 17. M. watertoni, Iceberg Creek, Montana.";
dc:description"Figs. 18-23. Megarcys larval characters. 18. M. signata, thorax, lateral, Mosquito Creek, Colorado. 19. M. signata, abdomen, lateral, Mosquito Creek, Colorado 20. M. subtruncata, thorax-abdomen, lateral, Quinn Spring, Oregon. 21. M. signata, right lacinia, ventral, Mosquito Creek, Colorado. 22. M. subtruncata, right lacinia, ventral, Ohanapecosh River, Washington. 23. M. watertoni, right lacinia, ventral, Iceberg Creek, Montana.";
dc:description"Figs. 24-29. Megarcys wingpads. 24. M. irregularis male, White River, Washington. 25. M. signata male, Mosquito Creek, Colorado. 26. M. subtruncata, Ohanopecosh River, Washington. 27. M. subtruncata, Butte Creek, California. 28. M. subtruncata, Quinn Spring, Oregon. 29. M. watertoni, Iceberg Creek, Montana.";
dc:description"Figs. 30-35. Megarcys larval legs. 30. M. irregularis, left rear, White River, Washington. 31. M. signata, left rear, Mosquito Creek, Colorado. 32. M. subtruncata, right rear, Ohanopecosh River, Washington. 33. M. subtruncata, right rear, Butte Creek, California. 34. M. subtruncata, left rear, Quinn Spring, Oregon. 35. M. watertoni, right rear, Iceberg Creek, Montana.";
dc:description"Figs. 36-41. Megarcys larval thoracic sterna. 36. M. irregularis, pro-and metasterna, White River, Washington. 37. M. signata, mesosternum, Mosquito Creek, Colorado. 38. M. subtruncata, meso- and metasterna, Ohanopecosh River, Washington. 39. M. subtruncata, meso- and metasterna, Butte Creek, California. 40. M. subtruncata, mesosternum, Quinn Spring, Oregon. 41. M. watertoni, mesosternum, Iceberg Creek, Montana.";
dc:description"Figs. 42-47. Megarcys dorsal larval abdomen. 42. M. irregularis male, White River, Washington. 43. M. signata male, Mosquito Creek, Colorado. 44. M. subtruncata female, Ohanopecosh River, Washington. 45. M. subtruncata female, Butte Creek, California. 46. M. subtruncata male, Quinn Spring, Oregon. 47. M. watertoni female, Iceberg Creek, Montana.";
dc:description"Figs. 48-53. Megarcys ventral larval abdomen, 48. M. irregularis male, White River, Washington. 49. M. irregularis female, White River, Washington. 50. M. signata female, Mosquito Creek, Colorado. 51. M. subtruncata female, Butte Creek, California. 52. M. subtruncata female, Ohanopecosh River, Washington. 53. M. watertoni female, Iceberg Creek, Montana.";
dc:description"Figs. 70-74. Megarcys larval characters. 70. M. irregularis developing male genitalia, dorsal, Nisqually River, Washington 71. M. signata developing male genitalia, Mosquito Creek, Colorado. 72. M. subtruncata developing male genitalia, dorsal, Butte Creek, California. 73. M. watertoni developing male genitalia, dorsal, Iceberg Creek, Montana. 74. M. yosemite developing male genitalia, dorsal, Cold Water Creek, California. Scale line= 2mm.";
dc:description"Figs. 75-83. Megarcys larval characters. 75. M. watertoni wingpads, male, Iceberg Creek, Montana. 76. M. watertoni wingpads, male, Bear Creek confl. Flathead River, Montana. 77. M. watertoni female wingpads, Iceberg Creek, Mt. 78. M. yosemite wingpads, male Cold Creek, California. 79. M. irregularis developing male genitalia, oblique view, Nisqually River, Washington. 80. M. signata developing male genitalia, lateral, Mosquito Creek, Colorado. 81. M. subtruncata developing male genitalia, oblique view, Butte Creek, California. 82. M. watertoni developing male genitalia, oblique view, Iceberg Creek, Montana. 83. M. yosemite developing male genitalia, oblique view, Cold Water Creek, California. Scale line = 2 mm.";
dc:description"Figs. 84-88. Megarcys larval characters. 84a. M. irregularis larval female 8th sternum, Nisqually River, Washington. 84b. M. irregularis, larval female 8th sternum, same specimen, 2X. 85a. M. signata larval female 8th sternum, Mosquito Creek, Colorado. 85b. M. signata larval female 8th sternum, Pine Creek, Montana. 86. M. subtruncata larval female 8th sternum, Butte Creek, California. 87. M. watertoni larval female 8th sternum, Iceberg Creek, Montana. 88a. M. yosemite larval female 8th sternum, Cold Water Creek, California. 88b. M. yosemite, larval female 8th sternum same specimen, 2X. Scale line = 2 mm.";