EXPLANATION OF PLATE IV. 



Fig. 1. Linognathus africanus, n. sp. 9- 



2. Linognathus forjkula, n. sp. ? . 



3. lloimatopinu'i peristictus, n. sp. 9 • 



4. Linognathus forficula ; ventral surface of last segments, 9- 



5. Linognathus africanus ; last segments of $ . 



6. Hmmatopinus peristiotus ; last segments of (J . 



