98 IOWA STUDIES IN NATURAL HISTORY 
This peculiar genus was erected by Stal to include a single 
species, the Pentatoma inserta of Say. Since that time addi- 
tional species have not been ineluded in the genus in which, 
therefore, the type species remains the sole representative. It 
is widely distributed in both Canada and the United States. 
The principal diagnostic characters are as follows: 
Body broadly ovate, more or less depressed. Head but slightly convex 
on dorsal surface, the sides sinuate near eyes. Rostrum reaching behind 
posterior coxae. Bueculae elevated into an angle at anterior extremity. 
Lateral margins of pronotum entire, explanate anteriorly; lateral angles 
rounded, not produced. Scutellum narrowed at apex. Apical margin of 
corium almost straight; veins of membrane irregularly anastomosing. 
Ostiolar opening without sulcus. 
The only other Iowa genus of Pentatominae in which the veins 
of the membrane are reticulate is Hymenarcys but the present 
genus may be at once distinguished from it by the longer ros- 
trum and the explanate margins of the pronotum. 
Menecles insertus (Say) (Puate V, Figure 11) 
1831. Pentatoma inserta Say, Descr. Het. Hem., 6. 
1859. Pentatoma inserta Say, Compl. Writ., I, 317. 
1867. Menecles insertus Stal, OEfv. Vet. Akad. Férh., XXIV, 527. 
1878. Menecles insertus Uhler, Proc. Bost. Soc. Nat. Hist., XIX, 375. 
1904. Menecles incertus Van Duzee, Trans. Am. Ent. Soc., XXX, 52. 
Body broadly oval, depressed, the margins much flattened. General 
color pale yellowish, rather uniformly, finely punctured with black. Head 
flattened, unarmed, set very deeply in pronotum, regularly punctate, a 
little more densely punctate at base; juga not longer than tylus, the mar- 
gins broadly reflexed. Antennae reddish yellow, the apical segment and 
apical half of fourth segment blackish. Rostrum slender, pale yellowish, 
extending on to second visible serment; the two apical segments infuscate. 
Pronotum rather uniformly punctured except antero-lateral margins and a 
narrow longitudinal median line; anterior margin deeply emarginate; lat- 
teral margins regular, broadly arcuated, the humeral angles included in the 
eurve. Seutellum broad at base, narrowing distinctly towards apex; a 
narrow, longitudinal impunctate line continuous with the line on the pro- 
notum extends backward about half the Jength of the secutellum and there 
becomes obsolete. Hemelytra considerably narrower than abdomen, the 
corium more densely and regularly punctate than the embolium; outer 
basal margin of embolium broadly reflexed; all the nervures impunctate; 
membrane hyaline. Tergum black, punctured, the margins less densely 
punctate, pale yellowish at the middle of the segments. Venter pale 
vellowish but so closely and finely punctate with blackish as to give an 
irregularly maculated appearance; disk of venter with a longitudinal series 
of lerge black spots; lateral margin blackish at the incisures. Ventral 
