126 IOWA STUDIES IN NATURAL HISTORY 
proach maturity they become entirely predaceous as are the 
adults. The eggs of this and allied species are parasitized by a 
number of small Hymenoptera. 
Podisus serieventris Uhler 
1871. Podisus serieventris Uhler, Proc. Bost. Soc. Nat. Hist., XIV, 94. 
1878. Podisus serieventris Uhler, Proc. Bost. Soc. Nat. Hist., KIX, 370. 
1897. Podisus serieventris Kirkland, Rept. Mass. Sta. Bd. Agr., XLV, 429, Pl. 1, 
figs. 2, 2a, 2b. 
1904. Podisus sereiventris Van Duzee, Trans. Am. Ent. Soc., XXX, 71. 
1907. Apateticus serieventris Schouteden, Gen. Ins., fase. 52, 72. 
Pale yellow, thickly punctured with brown. Head truncate in front, 
densely punctured. Ocelli small. Rostrum moderate, pale yellow, apical 
Segment brownish, darker at tip. Second antennal segment about four 
times as long as first. Pale antero-lateral margins of pronotum denticulate, 
the punctures aggregated to form a spot at each anterior and humeral 
angle; humeral angles acute but not spinose. Scutellum less densely 
punctate than pronotum, the punctures fewer and finer towards apex. 
Hemelytra colored similarly to pronotum and scutellum, the corium more 
densely punctured than embolium; membrane pale bronze brown with a 
longitudinal dusky vitta. Venter pale yellowish clouded with darker and 
sparsely, coarsely punctured; spots on median line becoming gradually 
larger posteriorly; each side of this occur two rows of small black or red- 
dish spots, those forming the outer row being at the middle of the seg- 
ments while those forming the inner row are at the anterior margins of 
the third to sixth visible ventral segments inclusive. Apex of the ostiolar 
canal black and a small black spot on each pleuron just outside the coxa. 
Connexivum alternated with pale orange and black. Legs rufous with 
two or three black spots towards apex. Length, 9.0-12.0 mm. Width 
across pronotum, 5.0-6.5 mm. 
This form is close to P. maculiventris but smaller, the humeri 
are shorter, less produced and less acute and the ventral spine 
is shorter; in general, the coloration is also redder than in that 
species. 
Professor Osborn listed Podisus serieventris from Ames, but 
I ean not with certainly attribute any of our Iowa specimens 
taken thus far to this species.- It is not included in Zimmer’s 
‘‘Pentatomidae of Nebraska’’ but has been recorded from Mon- 
tana, New York, New Hampshire and Vancouver Island. Kirk- 
land says (l. c.) that it is ‘‘by far the most common represen- 
tative of the genus’’ in Massachusetts. This form agrees with the 
others of the genus in its predaceous habits and the larvae upon 
which it is known to feed are listed by Kirkland. 
