50.1124. liEVlSlON OF THE MELANoPLl^SCritDER. 121 



is more or less, jicuerally sli<,^litly, convex, is rarely at all tlariiij;" in 

 front or only in tlie very sli«;;htest dej^ree, at most faintly jmnetate ami 

 {generally distinctly longer than the mcta/.oiia; front margin generally 

 truncate or subtriincate, hind margin obtnsangulate to a greater or less 

 degree, rarely suhtriiucate; median carina always <listinct on the mcta- 

 zona, generally much less soon the prozona, often subobsolete between 

 The sulci and never wholly wanting; lateral carinae typically obsolete, 

 but often indicated by a distinctly abrupt though rounded slKMihler, 

 rarely becoming <'arinate; lateral lobes vertical or sub vertical, es])e- 

 <*ially below, often feebly tumid above on the prozona, and generally 

 marked by a piceous i)ostocnlar band, crossing either the jirozona alone 

 or the whole pronotum, not infrequently broken or maculate. Proster- 

 nal spine variable, but always i)rominent; meso- and metastethia to- 

 gether distinctly longer than broad in both sexes; interspace between 

 mesosternal lobes generally longer or much longer than broad, never' 

 in the least broader than long, even when the sides of the interspace 

 are very divergent posteriorly (male) or generally ^juadrate but more 

 variable than in the other sex, sometimes as narrow as there but more 

 frequently subtransverse, occasionally in brachypterous forms dis- 

 tinctly transverse, as a general rule wider than in the other sex (female), 

 in both always distinctly, generally much, narrower than the lobes them- 

 selves, except in the few instances- where it is distinctly transverse in 

 the female; metasternal lobes generally attingent or subattingent, 

 rarely only approximate (male), or generally approximate or subap- 

 proximate, the interspace between them generally nariower than the 

 frontal costa (female ; iuetasternum rapidly narrowing posteriorly, so 

 that the portion bohind the lobes is not, or is hardly more than, half 

 the greatest widtn of the metasternum, but is more than twice as broad 

 as long. Tegminu always present, but either abbreviate and then 

 lateral, attingent, or overlapping, sometimes shorter and sometimes 

 longer than, but generally nearly the length of, the pronotum and usually 

 more or less acuminate apically; or they are fully develoi>ed and then 

 usually about attain or a little surpass the tips of the hind femora, 

 tai>ering more or less but very gradually and apically well rounded, at 

 a distance from the apex e<iual to the breadth of the tegmina dis- 

 tinctly narrower than the metazona, the intercalaries and cross veins 

 of the discoidal area (except in the macropterous forms of the dimor- 

 phic si)ecies, M. duicHoni and M. maniiuatHa) relatively numerous at 

 least in the apical fourth and usually throughout, the venation in gen- 

 eral sharp and clearly defined, the humeral vein straight and only api- 

 cally arcuate, nearly always terminating either on the apical margin 

 or only a short distance before it, running for some distance almost 

 exactly parallel to the costal margin or merging insensibly into it, the 



'In two species, M. montanus and M. bortalia, it is feebly transverse, but much 

 u.irrower than the lobes, and is similar in the two sexes. 

 These are M. arteinisiae, M. militaris, and M. altitndinum. 



