334 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 
When compared with material of L. nigrispina Stal’® and 
Brunner’s figure of L. pallidispina Stal, the present species is 
seen to be much less heavily built, with limbs proportionately 
by no means as robust as in those species and of what may be 
termed a much more normal type. In all features which we 
would consider of generic diagnostic importance, however, 
very close agreement 1s shown. 
The very decided size variation is shown by the following 
table for the extremes of the present series. 
Measurements (in millimeters) 
Greatest Length 
a Length of Length of width of Length of of caudal 
body pronotum pronotum” tegmen!® femur 
Cowley Mountain, Albemarle Island 23. -27.8 5. -5.9 4.5-5.9 6.2-8.8 10.2-14.6 
San Tomas, Albemarle Island 31.7-32. 6. -6.4 5.9-6.3 7.3-7.8 15. -15.7 
Iguana Cove, Albemarle Island 29. 55) 6. 8.3 W228 
Indefatigable Island 2S) 3 CAS 6 4.8-6. 5.2-5.8 8.5-9.7 12. -14.7 
Charles Island ie 6.3 6.9 8.5 13.8 
Length of 
Length of Length of Length of caudal Length of 
2 body pronotum tegmen femur ovipositor?? 
Cowley Mountain, AlbemarleIsland 26.2-30.5 6. -6.3 7.6-6.8 12.2-17.7 10.7-14. 
San Tomas, Albemarle Island 33. -34. 6.8-7. 6.1-7. 17.9-17.7 14. -14.1 
Villamil, Albemarle Island 28. -36. 5.9-7. 5.9-7.4 14.1-18. 11.3-14.7 
Indefatigable Island 28. -30.5 5.7-6.2 7.9-8.8 13.4-18.4 10.7-12.9 
Charles Island 31. -38. 7. -7.3 7.6-7.3 17.1-18.2 12.7-15. 
Hood Island 34. 7.1 10.6 19.7 16. 
Variation in coloration is decided, some individuals being 
almost immaculate, many moderately maculate, and a few 
heavily and conspicuously mottled. The color differences are 
evidently wholly or in large part attributable to individual re- 
sponse to local environmental influences. The majority of 
flightless katydids show such signal individual color adapta- 
tion to their immediate environment. 
Specimens examined: 42; 12 males, 27 females and 3 imma- 
ture individuals. 
Tagus Cove, Albemarle Island, I, 30, 1899, 14, cotype of 
L. paludicola, [Leland Stanford Jr. Univ.]; Elizabeth Bay, 
Albemarle Island, II, 25, 1899, 12, cotype of L. paludicola, 
[Leland Stanford Jr. Univ.]; Cowley Mountain, Albemarle 
16 Four males, taken by Gaumer at Merida, Yucatan, are in the Hebard Collection. 
17 Including the lateral lobes. 
18 Measuring the exposed portion only. 
19In females of this species the length taken is from the vertex to the abdominal 
see the apex of the subgenital plate falling considerably short of the apex of the 
abdomen. 
20 We take this measurement as a straight line from the point of emergence of the 
line of juncture of the valves to the apex. McWNeill’s method of measuring the arc is 
difficult, more liable to inaccuracy, and unnecessarily heterodox. 
