Labium, [40]

Labrum, [42]

Larva, [5], [7], [36]

Leeuwenhoek, [38]

Legs, structure of, [30]

Leptopsylla musculi, [89], [103]

Linnæus, [4], [75]

Listropsylla, [50]

Macrochiroptera, [107]

Malacopsylla, [80]