1939] 
Notes on Strumigenys 
111 
Sides of anterior portion of head parallel, the clypeus 
evenly and broadly and broadly rounded on its entire 
border; mandibles shorter 22 
22. Clypeus decidedly depressed in the middle, the sides 
strongly scalloped, each side with 3 large, erect, 
squamose hairs which are curved posteriorly; head 
robust; mandibles somewhat convex (PL 3, fig. 4) 
reflexct sp.n. 
Clypeus not as above 23 
23. Head relatively robust in proportion to its length; 
upper half rugulose or tuberculate; mandibles ro- 
bust, convex missouriensis M. R. Smith 
Head relatively slender in proportion to its length; 
surface, although reticulate-punctate, not tubercu- 
late ; mandibles slender and somewhat laterally com- 
pressed pulchella Emery 
Legend for Plate III. 
Fig. 1. Strumigenys medialis sp. n., head of worker. 
Fig. 2. Strumigenys bimarginata sp. n., head of worker. 
Fig. 3. Strumigenys manni sp. n., head of worker. 
Fig. 4. Strumigenys reflexa sp. n., head of worker. 
Fig. 5. Strumigenys venatrix sp. n., head of worker. 
Fig. 6. Strumigenys abdita sp. n., head of worker. 
