396 GEORGE H. CARPENTER AND MABEL C. MACDOWELL. 
b. Boss. c. Condyle, g. Ginglymus. ad. Adductor muscle, td. Its 
tendon, ab. Abductor muscle. 
Fig 16. — Left maxilla (ventral view), x 65. 
Fig. 17. — Apices of spines on lacinia. x 170. 
Fig. 18. — Labium (ventral view). x 65. car. Cardo. stp. Stipes. 
pip. Maxillary palp. ga. Galea. la. Lacinia. mt. Mentum. sm. 
Submentum. lb. pip. Labial pulp. 1. Ligula. nlc. scl. Neck sclerites. 
Fig. 19. — Labrum (ventral view). x 65. t. Anterior teeth, a. scl. 
Anterior sclerite. 1 . Toothed lobe. t. 2 . Posterior median tooth, m. scl. 
Median sclerite. 
Fig. 20. — Hypopliarynx and maxillulse (dorsal view), x 65. 
Fig. 21. — Hypopliarynx and maxillulse (side view). X 65. 
Fig. 22. — Hypopharynx and maxillulse (half ventral view). X 65. 
1. 1 . Anterior lateral lobes, t' . Anterior tooth on tongue, t" . Posterior 
tooth. It. scl. Lateral sclerite. pe. Foot of tongue, t. scl. Transverse 
sclerite. p. scl. Posterior sclerite. mxl. Maxillula. a. Apex of lateral 
sclerite. b. c. Projections on lateral sclerite. 
PLATE 37. 
Geotrupes — Larva. 
Fig. 23. — Labrum (ventral view). X 65. t x . Anterior teeth of 
labrum. m. scl. Median sclerite. 1. Spiny lobe. U. Posterior teeth of 
labrum. 
Fig. 24. — Hypopharynx (dorsal view). X 65. t r Anterior tooth of 
tongue. t 6 . Posterior tooth of tongue, mxl. Maxilla. 
Fig. 25. — Labrum (ventral view), x 65. t v Anterior teeth of labrum. 
p. scl. Posterior sclerites of labrum. 
Fig. 26. — Hypopharynx (side view). X 65. 
Fig. 27. — Hypopharynx (dorsal view). X 65. 
Fig. 28. — Hypopharynx (ventral view). X 65. t, 2 . Anterior tooth of 
hypopharynx. tr. scl. Transverse sclerite. It. scl. Lateral sclerite. 
sp. Group of spines on left lateral sclerite. sp\ Group of spines on 
transverse sclerite (dorsal surface). a. Boss on basilar membrane. 
mxl. Maxillula. 
