264 CALIFORNIA ACADEMY OF SCIENCES. 



EXPLANATION OF THE PLATE. 



Fig. 1 — Beichenbachia iu7norosa Cas. — Antenna (^ 

 Fig. la — B. tumidicornis Cas. — Antenna (^ 

 Fig. 16 — 7?. informis Cas. — Antenna (^ 

 Fig. 2 — R. deformata Lee. — Antenna (^ 

 Fig. 2a— i?, fundata Cas. — Antenna (^ 

 Fig. 2b— B. franciscana Cas. — Anienna (^ 

 Fig. 2 — Eumitocerus tarsalis Cas. 



3a— Anterior tibia and tarsus. 

 36 — Maxillary palpns. 

 3c — Posterior coxa. 

 Fig. ^—Leinacinus sp. incog. — Abdominal vertex showing long rigid sexiial 

 spine. 



4a— Lateral view of same. 

 Fig. b--Hesperohium Cas.— Base of abdomen beneath, showing structure. 

 Note- This figure is referred to in the introductory notes of the present 

 paper, p. 159. 

 Fig. 6 — Leptogenius hrevicornls Cas. 



6a— Maxillary palpus. 

 Fig 7—Scopceus kevlgcUus Gyll.— Infralateral view of prothorax showing 

 form of intercoxal lamina. 

 7a — Labrum. 

 Fig. 8 — Scopoiodera nitkla Lee. — Same. 



8a — Labrum. 

 Fig. 9 — Leptorus picipes Cas. — Same. 



9a — Labrum. 

 Fig. 10 -Orus punctatus Cas. — Same. 



10a — Labrum. 

 Fig. 11 — Pelecomalium hinotatum Cas. — Labrum. 

 11a— Maxillary palpus. 

 116— Posterior tarsus. 

 lie — Labial palpus 

 Fig. 12— Lathrimceu7n humerale Cas. 

 Fig. 33 — Orobanus rufipes Cas. 

 Fig. 14—0. dm&ua Cas. 

 Fig. \o—Actiduim rotundkolle Cas. 

 Fig. 16 — Ptilium sulcatum Cas. 

 Fig. 17 — Smlcrus americanus Cas. 

 Fig. 18 — Ditaphrus scymnokles Cas. — Antenna. 

 Fig. 19 — Eleates occklentalis Cas. 

 Fig. 20—Renocis heterodoxus Cas. 



20a— Slightly oblique side view o' head. 



