290 
Psyche 
[Vol. 90 
2 . 
Figure 2. Orthoperus scutellaris LeConte. A, dorsal view of head; B, ventral view 
of maxillae and labium; C, ventral view of hypopharyngeal sclerome; D, dorsal view 
of left mandible; E, dorsal and lateral views of enlarged setae. Line equals 0.1 mm 
unless otherwise indicated. 
produced at apex, row of thick setae in inner margin to apex; 
labium transversely divided, palps one-segmented; mandibles sym- 
metrical, with large prostheca, prostheca and incisor edge of mandi- 
ble serrate, accessory ventral process present on mandible base, 
mola with series of fine teeth over surface, two widely separated 
long setae on outer margin; the area of the hypopharyngeal scle- 
rome and epipharynx very complex, only outline of sclerome is 
figured. Prothorax with scattered patches of dark tubercles on ante- 
rior half, notum with two transverse rows of four multiply tubercu- 
