SCUTELLEROIDEA OF IOWA 
Or 
Or 
Genus BROCHYMENA Amyot and Serville 
1843. BrocHyMENa Amyot and Serville, Hém., 106. 
Typically, this is a Nearctic genus but it has extended its 
range into the Neotropical region through Mexico and as far 
south as Costa Riea. All the Iowa representatives of the genus 
may be told at sight by the roughened appearance and grayish 
brown color. The technical generic diagnosis will include the 
following characters: 
Lateral margins of head unarmed; anterior border more or less dis- 
tinctly emarginate; juga with lateral tooth near apex. Antennae cylin- 
drical, of five segments; basal segment not reaching anterior margin of 
head. Rostrum surpassing to a greater or lesser degree the metasternum. 
Prothorax with lateral margins not reflexed but more or less denticulate 
and with the posterior angles somewhat prominent. Scutellum more or 
less triangular with apex entire. Veins of membrane branching irreg- 
ularly. Abdomen with a shallow longitudinal sulcus. 
Stal also includes, ‘‘metastethus spiracula segmenti primi 
ventris tegente.’’ 
Key to the species 
Humeral angles distinctly produced into a short, dentate, trun- 
cated lobe not rounded anteriorly; scutellum with a distinct 
pmmemerse clevation at Das. ...:..........cse+caeekes arborea 
Humeral angles less prominent, rounded anteriorly and armed 
with numerous teeth; scutellum not strongly elevated at base 
Juga considerably longer than tylus, contiguous anteriorly or 
separated and forming a long narrow sinus; sides of pro- 
notum with pale irregular teeth........... quadripustulata 
Juga little longer than tylus, convergent at apex over tip of 
tylus forming a short, nearly transverse apical sinus; sides 
of pronotum strongly arcuated and furnished with close and 
SeerIpRe IA COCL 5 Se oars is cca e ste vie Saisie eye carolinensis 
Brochymena arborea (Say) (Puate VI, Ficur= 1) 
1825. Pentatoma arborea Say, Journ. A'cad. Nat. Sci. Phila., IV, 311. 
1840. j;Halys erosa Herrich-Schaeffer, Wanz. Ins., I, 188. 
1840. j+Halys erosa Herrich-Schaeffer, Wanz. Ins., V, 70, fig. 515. 
1851. Brochymena arborea Dallas, List Hem., I, 188. 
1859. Pentatoma arborea Say, Compl. Writ., II, 239. 
1876. Brochymena arborea Uhler, Bull. U. S. Geol. Geogr. Surv., IT, 283. 
1880. Brochymena arborea Distant, B. C. A. Rhynch. Het., I, 52. 
1904. Brochymena arborea Van Duzee, Trans. Am. Ent. Soc., XXX, 27. 
1909. Brochymena arborea Kirkaldy, Cat. Hem. (Heterop.), I, 191. 
Body broadly ovate, the abdomen extending laterally considerably be- 
yond hemelytra. General color brownish gray, thickly, irregularly punce- 
