34 VROCEEDINdS OF THE NATIONAL MUSEUM vol xx 



Length of body, male, 15 inni., female, 18 mm.; antennae, male, 9 mm., 

 female, 7 mm.; tegmina, male, 2.75 mm , female, .'i.5 mm.; hind femom, 

 male, 10 mm., female, 10.7r) mm. 



One male, 2 females. Waco, McLennan Count}', Texas, October 4, 

 (Museum Comparative Zoology); Texaj, iJelfrage, October 13. 



The broader cerci, incurved throughout and not abruptly bent inward 

 apically, separate this 8i»ecies clearly from 1\. palmeri. In one vien- 

 their base may be said to be narrower than the apical portion and so 

 the descrii)ti<)n of StaFs species would be applicable to this, but the 

 interval between the mesosternal lobes of the male is here nearlj'- twice 

 as long as broad, while in R.pUomis it is more nearly quadrate. 



i 



2. RHABDOTETTIX PALMERI, new species. 

 (Plate III, Hg. 3.) 



Body thinly but not briefly pilose, luteotestaceous beneath, black oi 

 blackish ferruginous (male) or ferrugineo testaceous (female) above, 

 marked with dull luteous; the darker parts are found mi a dorsal stripi 

 from the front of the vertex to th'^. front of the metazona, on the ui>pei 

 half of the lateral lobes of the pronotum, and on the sides of tlif 

 abdomen. Head luteotestaceous, more or less deeply infuscated: 

 frontal costa feebly punctate above; antennae luteous or testaceous 

 apically infuscated. Pronotum with the dark i»ortions mentioneii 

 separated by a uarrow light stripe, which begins behind the uppei 

 part of the eyes and on the head is bright luteous, but in i)assing over 

 the pronotum, especially in the female, becomes much duller and v 

 sometimes scarcely distinguishable; in most vivid examples it crosst- 

 the i)ronotum, but even in the male it usually becomes obsolescent oi 

 the metazona, which is mostly ferrugineo-testaceous in both sexe> 

 rarely black mesially iu the male; the lateral stripe on the pronotnu 

 generally margined more or less distinctly with black; lower portion 

 of lateral lobes luteous or luteotestaceous, narrowly edged beneat: 

 with testaceous; abdomen with a wideuing dorsal stripe of ferrugiuoi 

 testaceous. Fore and middle femora ferruginous, slightly infuscatd 

 apically; hiud femora green, ferruginous above, the upper genicuhi 

 lobe and sometimes the whole geniculatiou black ; hind tibiae greei 

 the spines black-tipped, usually nine but varying from nine to elcvt 

 in the outer series. Supraaual plate of male triangular with sliglit 

 convex sides, which are slightly elevated and separated by a br<i 

 valley from the median tectate portion; the latter is consulerably <: 

 vated and carries a deep slender median sulcus more than half : 

 length of the plate; furcuhi consisting of a pair of broad plates, wii' 

 advance beyond the posterior line of the last dorsal segment is scare 

 perceptible, each about a quarter the basal width of the supraa' | 

 plate; cerci moderately broad, compressed, straight and slightly diiii 

 ishing ill size for about two thirds their length, then suddenly and o 

 siderably curved inward and bent upward, narrowing more rapidly n 



