. Annals. Entomology. 19231 Mank: Biology of Staphylinidcs 231 Small hairs are seen between the other teeth. The first joint of the maxilla is short and broad, the second somewhat more slender and twice as long, with an additional lobe at the inner margin. The palpus is made up of five small segments. The labial palps have three segments. Thorax.—The dorsal side of the thorax is covered with a reddish brown plate of chitin with several hairs scattered along its margin. The meso- and meta-thorax are half as long and are similar in appear- ance. The ventral side is white without any sign of chit
. Annals. Entomology. 19231 Mank: Biology of Staphylinidcs 231 Small hairs are seen between the other teeth. The first joint of the maxilla is short and broad, the second somewhat more slender and twice as long, with an additional lobe at the inner margin. The palpus is made up of five small segments. The labial palps have three segments. Thorax.—The dorsal side of the thorax is covered with a reddish brown plate of chitin with several hairs scattered along its margin. The meso- and meta-thorax are half as long and are similar in appear- ance. The ventral side is white without any sign of chitin except a small triangular piece anterior to and between the first pair of Figure I. Fig. I. Philonthus bnouieusGrav. 1. Egg. 2, Larva, dorsal view. 3, Ocelli. 4, Upper lip. 5, Maxilla. 6, Antenna. 7, Labium. 8, Leg. 9, Pupa, dorsal view 10, Pupa, ventral view. 11, Pupa, lateral view. Abdomen.—The abdomen is a dirty white with short brown hairs scattered over its surface. It tapers toward the posterior end. The pseudopode is moderately long and thick. The anal styles are made up of two segments. The second is shorter than the first and is very slender. It is terminated by a long bristle. The styles are widely divergent. Both styles and pseudopode have hairs scattered over them. Legs.—Small spines are scattered over the surface of the legs. The smgle claw on the tarsus is characteristic of all of the Staphvlinidee and is an easy way of distinguishing this family from the Carabidte. Pupa.—The pupa is mm. long. There is a fringe of six hairs, three on each side at the anterior edge of the thorax. On the abdomen there are two divergent spines on the lateral margin of four segments and a single one on the last "two segments before the terminal one, which ends in two projections, each tipped with a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance o
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