NO. 1124. 



REVISION OF THE MELANOPLISCUDDEIt. 125 



e 2 . Tegmina shorter than the pronotum; cerci of male deeply sulcate longi- 

 tudinally at apex and incurved 9. rileyanm (p. 151 ). 



d-. Cerci of male more elongate, at least twice, generally much more than 

 twice, as long as middle breadth, ordinarily more or less acuminate at apex. 

 e 1 . Cerci of male irregularly tapering or scarcely tapering at all, compressed, 

 in no sense sty li form. 



/'. Subgenital plate of male short and broad, its apical breadth equal to 

 or surpassing the length of its lateral margin. ' 



g l . Cerci of male long and very slender, in the middle not one-half the 

 width of the frontal costa; last dorsal segment of male with a pair of 

 strongly oblique subinedian sulci outside the furcula .; 2 subgenital plate 

 not elevated apically (3. Aridus series). 



It 1 . Hind margin of pronotum truncato-emarginate; disk of metazona 

 fully twice as broad as long; tegmina relatively slender, widely dis- 

 tant. 



i l . Disk of prozona coarsely and uniformly punctate; cerci of male 

 apically enlarged and inferiorly acuminate at apex. 



37. humpJireysii (p. 206). 



i*. Disk of prozona coarsely punctate only along anterior margin; 



cerci of male apically equal, rounded at tip... 38. nitidus (p. 207). 



7r 2 . Hind margin of pronotum obtusangulate but subtruncate; disk 



of metazona less than twice as broad as long; tegmina relatively 



broad, approximate, at least in the male 39. aridits (p. 209). 



# 2 . Cerci of male long and broad throughout, sub-equal, broader than 

 the frontal costa; last dorsal segment of male with no oblique sulci out- 

 side the furcula ; subgenital plate apically elevated (10. Indigens series). 



40. indigene (p. 211). 



g*. Cerci of male short or not very long, and broad or moderately 

 slender, in the middle nearly as broad as if not broader than the frontal 

 costa ; last dorsal segment of male with no oblique sulci outside the fur- 

 cula; subgenital plate not elevated apically (11. Mancus series). 

 h l . Prozona, at least in male, much longer than broad, the disk of the 

 whole pronotum more than twice as long as the middle breadth, the 

 median carina percurrent, equal; interval between mesosternal lobes 



of male twice as long as broad 41. scudderi (p. 212). 



h 2 . Prozona, even in male, transverse, subquadrate or slightly longi- 

 tudinal, the disk of the whole pronotum less than twice as long as 

 middle breadth, the median carina often subobsolete between the 

 sulci : interval between the mesosternal lobes of male not more than 

 half as long again as broad. 

 i 1 . Cerci of male rather stout, subequal. 



j l . Abdomen of male strongly recurved; forks of furcula diver- 

 gent, distinctly longer than the last dorsal segment; subgeuital 



plate with no apical tubercle 42. (jH letter (p. 215). 



/-. Abdomen of male scarcely recurved; forks of furcula parallel, 

 minute, hardly as long as the last dorsal segment; subgenital 

 plato with a slight apical tubercle 43. artemisiae (p. 217). 



1 Care should be taken not to include in the apical breadth any part of the 

 membranous integument connecting it with the preceding ventral segment. For 

 simplicity's sake, the length of the plate is here considered its extent parallel to the 

 lateral margin (or that margin itself) as seen from the side; its breadth, what would 

 be its length along the ventral line were it regarded as one of the abdominal 

 segments. 



2 This has not been seen, but is only inferred, in M. Innnpltreysn. 



