SCUTELLEROIDEA OF IOWA 121 
Genus APATETICUS Dallas 
1851. ApatTeETicus Dallas, List Hem., I, 105. 
The members of this and the following closely allied genus 
are confined almost entirely to North, South and Central Amer- 
ica and to the Antilles. As here delimited, the genus Apateticus 
contains forms of larger size than does the genus Podisus. The 
members of both genera are, in general, arboreal in habits and 
are almost entirely predaceous so that they make up a group 
of considerable economic importance destroying, in particular, 
the larvae of many noxious insects. The genus may be briefly 
diagnosed as follows: 
Sides of head nearly parallel, apex emarginate, the lateral lobes longer 
than the tylus and often almost meeting in front. Eyes prominent, globose. 
Rostrum stout, not surpassing posterior coxae; second segment longest. 
Humeral angles rather prominent, usually obtuse; anterior part of lateral 
margins of pronotum denticulate. Abdomen with a spine of variable 
length at base. Anterior femora unarmed; anterior tibiae not dilated. 
Length usually over 13.0 mm. 
In the North American fauna two subgenera are included in 
the present genus; one of these is represented in Iowa. 
Subgenus APOECILUS Stal 
1870. Aporciuus Stal, Svensk. Vet. Handl., 9, no. 1, 49. 
Juga little longer than tylus, the apices converging a little but not con- 
tiguous; interior apical angles acute. Thorax with postero-lateral margins 
straight, posterior angles obtuse, scarcely produced. Apical angles of 
sixth ventral segment straight, not produced into spines. Irena extending 
beyond middle of scutellum. 
Apateticus cynicus (Say) (PuatTE III, Figure 5) 
1831. Pentatoma cynica Say, Descr. Het. Hem., 3. 
1851. Arma grandis Dallas, List Hem., I, 96. 
1859. Pentatoma cynica Say, Compl. Writ., 312. 
1867. Podisus grandis Stal, OEfv. Vet. Ak. Foérh., XXIV, 497. 
1870. Podisus (Apoecilus) grandis Stal, Svensk. Vet. Handl., 9, no. 1, 49. 
1876. Podisus cynicus Uhler, Bull. U. S. Geol. Geogr. Surv., II, 282, Pl. XIX, 
fig. 18. 
1897. Podisus cynicus Kirkland, Rept. Mass. Sta. Bd. Agr., XLV, 425, Pl. 1, 
fig. 7. 
1904. Podisus (Apoecilus) cynicus Van Duzee, Trans. Am. Ent. Soc., XXX, 70. 
1907. Apateticus cynicus Schouteden, Gen. Ins., fase. 52, 71, Pl. 5, fig. 8. 
1909. Apateticus (Apoecilus) cynicus Kirkaldy, Cat. Hem. (Heterop.), I, 22. 
Elongate, robust, yellowish, thickly, irregularly punctured with red or 
fuscous. Head long, closely, irregularly punctate, the juga longer than tylus 
and approaching each other over its tip. Ocelli reddish yellow, very near pos- 
terior margin of head. Antennae yellowish, basal segment heavy, not 
reaching apex of head; second segment longest. Rostrum yellowish, 
