114 Studies in Kansas Insects. 



Process of the metazone acute, right or obtuse angled, with the side 

 sinuate, arcuate or straight. Lateral lobes with the posterior border 

 straight or slightly sinuate and nearly vertical, lower border sinuate 

 anteriorly and arcuate posteriorly, with the posterior angle well rounded, 

 or, less commonly, with a dentation extending downward. 



"Tegmina plain; isabelline or maculate; in the last case the spots are 

 annular or solid and pretty evenly scattered over the whole surface, or 

 much more frequently arranged in three well-marked groups, one each at 

 the end of the first and second quarters and one on the distal third. The 

 first two are generally much better defined than the last and may become 

 solid bands, as in Hadrotettix. The intercalary vein is curved forward 

 distally, where it is always much closer to M than to Ca. Area M is 

 filled with a reticulation of irregular cells. Rs has from two to five 

 branches, separated by spurious veins, which are bordered on either side 

 by quadrilateral cells, which become irregular and smaller toward near 

 the middle of the tegmina. M 1 and 2 and M 3 and 4 are present with- 

 out branches. Cu 1 has one or two anterior accessory branches. Wings 

 sometimes hyaline, but usually colored yellow, green or blue at the base, 

 hyaline at apex, with a fuscous band between, varying in width from 

 one-eighth to two-thirds the length of the wing. This fuscous band may 

 include more or less completely the whole outer part of the wing, and it 

 always has a submarginal spur which extends inward toward the base, 

 and it is generally continued around the posterior margin to or toward 

 the posterior angle. . . . The posterior femora are moderately de- 

 veloped, with the outer face plain or banded and the inner face and lower 

 sulcus black, with one or two light bands on the apical half; or by the 

 fading of these black markings are modified and may be wanting, es- 

 pecially in the lower sulcus. Posterior tibia? with eight to ten spines on 

 the outer side." 



The spur on the wing may be very small, as will be seen in Trimero- 

 tropis magnified Rehn. 



Trimerotropis vinculata Sc. 



Proc. Bost. Soc. Nat. Hist., vol. 18, pt. 3, 270; 1876. 



Ash gray, blotched with dark fuscous; foveolse of the head distinct, 

 the costa being prominent throughout; tip of fastigium with a rather 

 deep circular or posteriorly angulated pit having abrupt sides, reaching 

 the margin of the lateral foveolse; antennas dark brown, very obscurely 

 annulate with darker and lighter colors. Median carina of pronotum 

 distinct only on front lobe, and cut behind the middle by the transverse 

 sulcus, the hinder portion of the anterior lobe somewhat corrugated; 

 hind border of pronotum forming a right angle. Tegmina as long as 

 the hind legs, the basal third testaceous, with a fuscous cloud on its 

 apical third, and fuscous dots sprinkled over the rest; middle third 

 ashen, with a fuscous cloud traversing the entire breadth of the wing 

 in the middle, broadest centrally; apical third pellucid, sprinkled with 

 small fuscous spots, fainter than the previous ones, closely clustered 

 basally, distant and fainter apically. Wings very faint lemon yellow at 

 base, pellucid with black nervules at apex and near the middle a broad 

 band of blackish fuliginous; it commences on the middle of the costal 

 margin, half as broad as the tegmina, suddenly broadens by a narrow 

 interior shoot to double or more than double its former width, and then 

 passes nearly at right angles to the costal border, but directed a little 

 obliquely outward, slightly broadening as it goes, to the outer margin, 

 when it turns toward the anal angle, narrowing and fading until it has 

 traversed nearly or quite three-quarters of the anal area; its margins 

 are ill-defined and slightly irregular, but its general form is a sickle- 

 like curve, which greatly resembles that of most species of Spharagemon. 



