66 IOWA ACADEMY OF SCIENCES. 



A. maculatus G. & B. — This is the only western species 

 known and that only by the two original specimens, both 

 females. 



Of the other species credited to the United States striatus 

 Linn, is probably an error of determination for ^S'. agrestis, as it 

 has not been found in any collection. A. solidaginis Walk is an 

 unknown Phlepsius, and circumflexus Prov. is still unknown in 

 nature. 



MEMNONIA N. G. 



General form ot Acoceplmlus, vertex convex, sloping, nearly right 

 angled, about half as long as width across the eyes, the anterior 

 margin thick, ocelli on the margin above the frontal sutures, dis- 

 tant from the eyes; face convex, forming an acute angle with the 

 vertex, front above broad, narrowing below and abruptly rounding 

 to the parallel margined clypeus; pronotum as long or longer than 

 vertex, strongly, transversely wrinkled, the lateral margins less 

 than half the middle length, anterior and posterior margins nearly 

 parallel; elytra macropterous, covering the abdomen in the male 

 and all but the ovipositor in the female, with long apical cells and 

 a narrow appendix, or brachypterous, covering about two-thirds of 

 the abdomen, the apical cells very small; under wings rudimentary; 

 venation, the inner branch of the first sector tied to the second sec- 

 tor near its origin, again forking near the middle, its outer fork tied 

 to the outer branch beyond its middle, anteapical cells of very dif- 

 ferent lengths. 



Type of the genus M. consobrina. 



Memnonia consobrina N. SP. Plate v Figs. 6-10. 



Macropterous female, form of a small Acoceplmlus with a longer 

 vertex and ovipositor, vertex nearly twice wider between eyes than 

 length on middle, twice longer on middle than against eyes; pro- 

 notum twice wider than long, elytra covering the abdomen. Color, 

 vertex, pronotum and scutellum green or yellowish green, elytra 

 brownish drab, overcast with a heavy whitish bloom, nervures 

 brown, the cross nervures, the apical margin and adjacent nervures, 

 especially the two to the costal margin, fuscous; below, upper part 

 of face green, antennal pits, lower part of front, and the clypeus, 

 black, genae light brown, legs and abdomen mostly black. 



Brachypterous female; resembling the above, except that the 

 elytra are abbreviated, exposing part of the abdomen, the apical 

 cells being small or wanting, under wings rudimentary. 



Male; smaller, narrower than the female, vertex more pointed, 

 elytra covering the abdomen, flaring behind; color, shining black, 

 the eyes yellowish, three or four round, white spots in a row across 

 the anteapical cells. 



Genitalia; female, ultimate ventral segment twice longer than 

 penultimate, shallowly emarginate with an obtuse median tooth; 

 male valve only just visible beyond the ultimate segment, plates 



