122 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



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Accurate and full descriptions of the genitalia have been found 

 of the greatest importance. Failure by Brunner and Redtenbacher 

 to describe these parts adequately constitutes one of the most 

 serious defects in their monographs. The accuracy and finish 

 shown in the accompanying figures, particularly of the Listroscelid 

 genitalia, are due to the exceptional skill of Miss Mary B. Lane. 

 We are deeply indebted to her for the unusual effort which was 

 required in reproducing these indescribably intricate parts. 



We have given the number of spines on the ventral femoral 

 margins for many species, not because we believe the exact number 

 to be diagnostic for any species, but because each species will 

 probably be found to have a definite range in number and develop- 

 ment 2 of such spines, often differing from that of its nearest re- 

 latives. In some groups we have already found these spines to be 

 decidedly variable in certain species, quite constant in others. In 

 our studies of the South American species of the genus Conocephalus, 

 where we had large series of many species, the range in a species of 

 such spines was found to constitute a valuable aid. 



PHANEROPTERINAE 



Group Elimaeae 



Elimaea insignis (Walker) 



1869. Phaneroptera insignis Walker, Cat. Dermapt. Saltat. Br. Mus., II, 

 p. 344. [<? , Silhet-.] 



Khasia Hills, Assam, 1 cf, 1 9. 



The treatment, by Brunner, of material from Assam, as the 

 synonymous annulata, 3 is much more satisfactory than Walker's 

 diagnosis. 

 Elimaea annamensis new species. Plate XI, figures 1 and 2. 



This relatively large species is of a general pale green coloration, 

 excepting the dorsal surface of the head, pronotum and tegmina, 

 which is uniform dark reddish brown, and the antennae, which are 

 of a similar dark color ventrad, slightly paler dorsad and show a 

 few, very small and widely separated, pale annuli distad. 



It is very closely related to E. schmidti Krausze, described from 

 the same locality. 4 It differs from that species in having the occiput 

 and pronotal disk dark, in the shorter pronotum, more elongate 

 tegmina and decidedly more elongate limbs. 



Six species have been described as members of the genus Elimaea 



2 Highly specialized spines tjccur on the ventral femoral margins in the 

 Pseudophyllid genus Morsimus and its allies. 



3 Monogr. der Phaneropteriden, p. 92, pi. I, figs. 10, a to d, (1878). 



4 Ins.-Borse, XX, p. 2, (1903). 



