Plate X 



Rhinoscepsis bistriatus LeConte 



Fig. 1. Metanotum of female, under high magnification, a.b. metascutum; 

 c.d. metascutelkmi ; e. rudimentary left metathoracic wing. 



Fig. 2. Right elytron of female. Note characteristic striulation of the integu- 

 ment on the articular anterior surface, and the posterior margin. The 

 three basal foveae, named from left to right the sutural, discal and 

 humeral, are drawn under high magnification to bring out the char- 

 acteristic whorling of the lumen of the fovea into the integument, 

 a. The lock-notch which fits over the first visible pleurite and 

 sternite. 



Fig. 2a. Right metathoracic leg of female, a. Coxa; b. Trochanter; c. Femur; 

 d. Tibia and e. The three-segmented Tarsus. 



Fig. 2b. Third tarsal segment to show detail of the tarsal claw and accessory 

 claw. 



Fig 2c. Detail of integumental surface of metathoracic coxa along the line x 

 in 2a above, under high magnification, to show striulation. 



Fig. 3. Mesosternal and metasternal field of female. MOS, mesosternum; 

 MOES, mesoepisternum ; MOCC, confluent mesocoxal cavities; 

 MES, metasternum ; MESS, metaepisternum ; P, prepectoid area ; 

 II, lateral mesosternal fovea; III, median mesosternal fovea; IV, 

 lateral mesocoxal fovea and V, posterior mesocoxal fovea. Note that 

 these foveae are shown as though the integument was transparent, 

 to bring out the characteristic whorling of their walls. These sternal 

 fovea are important structures (see p. 24ff). 



Fig. 4. Ventral aspect of abdomen, female. Sl-7, visible sternites; T6, sixth 

 visible tergite. 



Fig. 5. Ventral aspect of abdomen, male. Sl-7, visible sternites, with the 

 seventh, the "pygidium," with the arcuate longitudinal "carina"; 

 T6, sixth visible tergite. 



Fig. 6. Ventral aspect of posterior sternites of male abdomen showing the 

 penis being exserted between the right and left pygidial plates, 

 which together make up the seventh sternite, and when closed, their 

 line of union forms the longitudinal median "carina." 



