138 FRED. V. THEOBALD. 



agree exactly with those of this insect I have found in England on Rest Harrow. The 

 structural notes are from Egyptian, American and EngHsh specimens. It is a very 

 marked species ; the apterous females have the whole body studded with dark 

 patches from which strong, apically expanded hairs arise. Willcocks found this aphis 

 on the under side of the leaves of berseem and noticed that it formed a great quantity 

 of honeydew. 



Davis in his recent paper gives Buckton's Chaitophorus maculatus from India as a 

 synonym of Monell's Callipterus trifolii and suggests that both may be the same as 

 the European ononidis. I have not seen Indian specimens, but Davis has compared 

 them with trifolii, Monell. The American specimens of C. trifolii which I have 

 exactly agree with the African and European species and thus I have sunk it as a 

 synonym of ononidis. The American specimens have the cornicles of just the same 

 shape as the Egyptian, but both Buckton and Davis figure them shghtly different ; 

 there is no doubt however that they are the same. The Indian food-plant is lucerne 

 (Medicago sativa). In America Davis records C trifolii on red clover (Trifolium 

 pratense) and also reared it on white clover {T. repens), Alsike, English and 

 mammoth clovers (all Trifolium) ; Das has found in India that the species called 

 maculatus by Buckton lives on lucerne, but has never found it on Trifolium ; just 

 the reverse of what Davis finds in America. In England I have never seen it on 

 Medicago sativa, but only on Trifolium and Ononis. 



Genus Saltusaphis, nov. 



Head very large, a long space between the frons and the eyes, which are large and 

 prominent. Thorax large, the segments well defined ; pro thorax very large in the 

 alate female, large in the apterous female. Body rather narrow, scarcely wider than 

 head and thorax in the alate female, shghtly more swollen in the apterous female. 

 Antennae of six segments in both forms ; longer than the body in the alate female, 

 as long or a httle longer in the apterous forms. Legs short, with the fore and mid 

 femora expanded. Cornicles small and cup-shaped, marked with fines of spots. Cauda 

 in both forms bifid, each branch bituberculate. Body hairs either fan-shaped or 

 sickle-shaped, except at the apex. Proboscis short, not reaching the second pair of 

 legs, which are widely separated from the first pair. Wing venation very marked 

 (vide fig. 27). 



This genus is founded on the marked cephahc structure, the posterior wing venation 

 and the marked cauda. It is pecuhar in that the apterae have the habit of jumping 

 or skipping as in the CoUembola. Only a single species is known so far. 



Saltusaphis scirpus, sp. nov. (figs. 27, 28, 29). 



Alate viviparous female, — Colours of alate female when ahve : — *'Head dusky 

 ochreous tinged with green, a broad median dusky fine ; eyes red. Antennae with 

 1st and 2nd segments dusky ; 3rd black, basal ^ paler ; 4th to 6th black. Pronotum 

 yellowish green, with a broad median greyish area cut and edged by dusky fines. 

 Mesonotum obscure brownish, tinged with green ; wing insertions yellowish green. 

 Abdomen pale yellowish green, with dusky markings. Cornicles and cauda dusky. 

 Legs, 1st pair with femora pale to ochreous, shaded with dusky hue, tibia ochreous, 

 tarsi dark ; 2nd and 3rd pairs wdth femora dusky, tibiae and tarsi as in first pair. 



