NO. 1687. THE THORAX OF INSEVTt^—SNODdRASS. 59I 



Fig. 62. Spodromantis guttata, hind wing. 



63. Microcentrum laurifolium, front wing, 



64. Microcentrum laurifolium, bind wing. 



Platk 48. 



Fig. 65. Gryllotalpa horealis, bind wing. 



66. Gryllus pcnnsylvanicus, long-winged female, bind wing. 



67. Gryllus pcnnsylvanicus, long-winged female, front wing. 



68. Dissostcira Carolina, front wing. 



69. Dissostcira Carolina, bind wing. 



Plate 49. 



Fig. 70. Dissostcira Carolina, mesopleurum, external. 



71. Dissostcira Carolina, mesopleurum, internal. 



72. Ptercmarcys californica, protborax, lateral. 



73. Perla nympb, protborax, lateral. 



74. Perla nympb, propleurum, internal. 



75. Ptcronarcys californica, mesotergum. 



76. Perla nympb, metatergum. 



77. Perla nympb, metatborax, lateral. 



Plate 50. 



Fig. 78. Ptcronarcys californica, metapleurum, external. 



79. Ptcronarcys californica, metapleurum, internal. 



80. Isogcnus nympb, mesopleurum, external. 



81. Acroneuria nympb, mesopleurum, internal. 



82. Cerastipsocus venosus, meso- and metapleurum, external. 



83. Benacus haldemanus, protborax, anterior, left coxa removed from 



coxal cavity {CxC). 



84. Benacus haldemanum, part of inner surface of metapleurum sbow- 



ing epimeral coxal condyle (7c) and true coxal condyle {CxP). 



85. Benacus haldemanum, mesopleurum, external. 



86. Benacus haldemanum, mesopleurum, internal. 



Plate 51. 



Fig. 87. Benacus haldemanum, metatergum and first abdominal tergum, dor- 

 sal. 



88. Benacus haldemanum, metatergum and first al)duminal tergum, poste- 



rior. 



89. Benacus haldemanum, metapleurum, external. 



90. Spongiphora apicidenta, mesotergum and base of rigbt elytron. 



91. Spongiphora apicidentata, propleurum, prosternum, and base of leg, 



ventral. 



92. Spongiphora apicidentata, mesotergum, Aeutral. 



93. Spongiphora apicidentata, microtborax and bases of bead and labium, 



ventral. 



94. Spongiphora apicidentata, mesosternum and mesopleura, ventral. 



95. Buprestis aurulcnta, front of prosternum, microtborax, and base of 



bead, ventral. 



