2'>0 



^[r. G. A. BauloniiHT o« tlie Ii(n\'S and 



exceptions occasionally occur in the typical form (Poitiers, 

 l^oloi^na) ami in the var. ridibunda (AlenUcjo, Majorca, 

 Rahaniiia in Morocco). The outer metatarsals are separated 

 nearly to the base in R. escuhiitaj only in their distal half in 

 //. feniporavia and R. aroalia, the other European species 

 tilling up the gap between the two extremes. 



Integument and Markings. 



The elongate glandules or interrupted longitudinal glan- 

 dular folds on the bacl< *, afford, generally speakiiig, a good 

 distinctive character tor the var. chinensis^ but they may be 

 very feebly marked or almost obsolete in some specimens 

 (Kin Ki:ing, yokohama), and they are occasionally fore- 

 shadowed in the var. ridibunda (Beit Jenn, near Damascus), 

 so that the two forms are completely connected in this respect. 



I may point out another character, hitherto overlo )ked, 

 which affords an absolutely constant distinction between ihi 

 ty[iical form and the var. cliinens'is. 



Fi; 



In Ji 



Posterior extremities of dorsn-lateral folds in specimens from Berlin, 

 var. ridibunda (a), Cadillac, var. ridibunda (b), and Vienna, 

 f. ii/pica (c). 



In the former, and also in the var. lessoncv, the glandular 

 dorso-lateral fold ends abruptly at some distance in front of 

 the thigh, and it is often followed by a detached portion 

 parallel with it but nearer to the mid-dorsal line and extend- 

 ing on the base of the thigh. In the var. chinensis the fold 

 extends uninterrupted to the hip, or, if broken up posteriorly, 

 without any deviation from tlie straight line. Now, this 

 striking difference is c.omplectdy bridged over when we take 

 the var. iidibunda,i\s well as the var. sa/iartca, iuto con- 

 sideration. Some specimens have the fold continuous and 



* A very variable featiu'e in the American representative of li. escii- 

 lenta, It. haUeina, I^. 



