174 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



Fig. 107. A. pulcheUa. 



108. Paurocephala ilicis, female cauda. 



109. Aphalara alaskensis, one of male forceps. 



110. A. suaedae, head. 



111. A. alaskensis, head. 



112. Same, male genitalia, lateral aspect. 



113. Heterojmjlla quassiae, male forceps. 



114. Uhleria mira, head and part of thorax. 



115. Same, cephalic, of head. 



116. Hetempsyllaforcipata, male forceps. 



117. H. qvMssix, male genital segment. 



118. H. forcipata, same. 



119. 5^. /wsca, male forceps. 



120. Katacephala grandiceps, head. 



121. Same, lateral aspect. 



122. Freysuila dugesii, head. 



123. Rhinopsylla ailienx, head. 



124. Freysuila dugesii, basal part of antenna. 



125. Heteropsyllafusca, male genitalia. 



126. Katacephala grandiceps, male forceps. 



127. Same, male genital segment. 



Plate 9. 



[Views of head and genitalia.] 



128. Teiragonocepliala flava, head. 



129. Same, male forceps, caudal view. 



130. Psylla hariigii, male forceps. 



131. Euphalei'us propinquus, head. 



132. Aphalara alaskensis, female cauda. 



133. Psylla breviata, male cauda. 



134. Euphalerus rugipennis, head. 



135. Arytaina chelifera, male forceps, caudal view. 



136. Same, lateral view. 



137. Trioza alacris, male cauda. 



138. Ceropsylla sideroxyli, head. 



139. Trioza stylifera, male forceps. 



140. T. lohatu, male cauda. . 



141. Leuronota longipennis, head. 



142. Psylla floccosa, female cauda. 



143. Trioza lobata, male forceps. 



144. Psylla galeaformis, female cauda. 



145. P. hartigii, same. 



Plate 10. 



[Views of head and male cauda.] 



146. Carsidara concolor, head, lateral aspect. 



147. C. viexicana, head. 



148. C. dugesii, head. 



149. C. gigantea, head. 



150. C. dugesii, cephalic view of head. 



151. C. gigantea, same. 



152. Epicarsa corniculata, head, lateral. 



153. Same, cephalic. 



154. Rhino j:>sy lla jalapensis, lateral. 



155. Same, cephalic. 



