82 A NEW CHLOEALTIS (aCRIDINAe) 



Chloealtis aspasma' new species 



A striking species which can be readily distinguished from both 

 of the previously known species of the genus {conspersa and 

 ahdominalis) by the more slender form, the more produced and 

 distinctly acute-angulate fastigium when seen from the dorsum, 

 in both sexes, the more retreating face and more produced f astigio- 

 facial angle and the distinctly obtuse-angulate caudal margin 

 of the pronotal disk. The female sex has, in addition, one feature 

 which is interesting in its bearing on the value of a classic dif- 

 ferential character used in the subfamily Acridinae (Truxalinae). 

 The fastigium in C. conspersa has no appreciable lateral foveolae 

 in either sex; in C. ahdominalis we find hardly any more indication 

 although the fastigial margins are broader; in C. aspasma the male 

 sex has indications of foveolae, which are lateral and hardly visi- 

 ble from the dorsum, while in the female sex we find similar indi- 

 cations which are clearly visible from the dorsum. The three 

 species are unquestionably congeneric, with aspasma showing 

 affinity with each of the others in certain features. In the general 

 pronotal form the new species more nearly resembles ahdominalis, 

 in the tegminal structure of both sexes it approaches conspersa 

 more nearly than ahdominalis, the form and sculpture of the 

 ovipositor jaws is also more like the condition found in conspersa 

 than in ahdominalis, while the form of the caudal limbs is more as 

 in ahdominalis. 



The indication of the lateral foveolae with fair distinctness, and 

 also their visibility from the dorsal surface in the female sex, im- 

 mediately suggests relationship with the Gomphoceri and Scyllini 

 sections of the subfamily. It would seem from the evidence of 

 the genus Chloealtis, as well as tendencies observed in other genera 

 of the subfamily, that, unless deeply excavate and sharply de- 

 limited, the pitting of the lateral foveolae is not as fundamental a 

 character as generally supposed. This also would appear to be 

 true of the exact position of the lateral foveolae, when indicated, 

 as we have in the present species proof of their position differing 

 in the sexes of the same form. That the sexes in hand represent 

 one species, and that this species is a member of the genus 

 Chloealtis are incontestable conclusions, from which we are natur- 

 ally led to deduct that the dorsal position of the lateral foveolae 



^ From iawaava , welcome. 



