130 



PSYCHE. 



[November, 1900 



as he had but one male of each variety 

 and it would be exceptional to find two 

 from even the same locality exactly 

 alike in color pattern. Baker suggests 

 that atra may prove but a variety of 

 humilis Stal, a suggestion that is un- 

 doubledly correct as I have examined 

 males from Vera Cruz that do not differ 

 from the Colo, specimens except that 

 they are slightly smaller, and this is also 

 the case in missella the only other 

 species occurring in both places. 



Macropsis laeta Uhl. 



var. pacta n. var. 



Differs from typical laeta only in color. 

 In life tlie whole insect is suffused witli red- 

 disli, tlie hyaline elytra allowing the stronger 

 color of the abdomen to show through. 

 Dried specimens are of a delicate pink. This 

 pink variety of a green species is analogous 

 to the pink Katydid. 



Summed up according to the above 

 synonymy, the specific limits and dis- 



tribution will be as follows. (The gen- 

 eric synonymy is given above.) 



M. laeta Uhl. and var. paeta nov. 



Known only from Colo. 



M. apicalis O & B. 



M. alahamcnsis Baker. 



Iowa and Alabama. 



M. robustus Uhl. 



Ala. La. Texas, N. Mex., Ariz., 

 Calif, and Colo. 



M. missella Stal. 



AI. i-nfoscutcllata Baker. 



Colo., N. Mex. and Vera Cruz, Mex. 



M. humilis Stal. 



A{. atra Baker, M californiia Baker, 

 M. magna Baker. 



Colo., Calif, and Vera Cruz. 



M. innervis Fowler. 



Mex. — Unknown in nature. Its 

 description (as a Membracid) not giv- 

 ing specific characters. It may fall 

 under one of the other species. 



M. (?) idioceroides Baker. 



N. Mex. — I doubt ver}- much 

 whether it belongs to the genus at all. 



LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE.— XVI. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Euchlenna serrtita Dru. The lar\'a is 

 here described for the first time. 



Egg. Laid loosely, rolling around in the 

 tumbler like sand. In nature doubtless fall- 

 ing upon the ground. Elliptical, not flat- 

 tened, but of less diameter on one direction, 

 both ends rounded, one (micropylar) slight- 

 ly more flattened. Reticulations large, about 

 12 the length of the egg, very .strongly raised, 

 forming ridges, the reticulations wider than 

 long and arranged in nearly straight rows the 



length of the egg, forming longitudinal waved 

 ridges, which are, however, exactly like the 

 cross striae except that the latter are alterna- 

 ting. Joinings of reticul.itions with white- 

 points in oblique view, not seen from above. 

 Surface finely shagreened. Bright bluish 

 green, later dark red. Size .S X -5 X -4 mm. 

 Stage I. Head round, pale browni.sh, mot- 

 tled, .slightly darker in a line above the black 

 ocelli, and with whitish over the face ; width 

 about .3 mm. Body rather shoit, not slender. 



