Figs. 37-40 Protaphorura pseudarmatus (Folsom), drawn from cotype in USNM.

Fig. 37 PAO × 1000
Fig. 38 SO Ant III, sectional view from side with end papilla removed × 1000
Fig. 39 anal spine × 1000
Fig. 40 fore foot × 1000

Figs. 41-43 Onychiurus fimetarius (L), drawn from cotype of Onychiurus pseudofimetarius Folsom in USNM.

Fig. 41 SO Ant III × 1000
Fig. 42 PAO × 1500
Fig. 43 forefoot × 1000

Figs. 44-49 Paronychiurus ramosus (Folsom), drawn from cotype in USNM.

Fig. 44 SO Ant III × 1500
Fig. 45 SO Ant III side view × 1500
Fig. 46 PAO × 1500
Fig. 47 Abd VI with anal spines and setae angled view × 530
Fig. 48 anal spine from side × 1000
Fig. 49 hind foot × 1000

Figs. 50-54 Pseudonychiurus dentatus (Folsom), drawn from cotype in USNM.

Fig. 50 SO Ant III from side × 1000
Fig. 51 middle foot × 600
Fig. 52 PAO, deep appearance at bottom of organ × 1000
Fig. 53 PAO surface appearance × 1000
Fig. 54 anal spine from side × 1000