JAMES A. G. REHN 333 



greatest width contained slightly less than five times in the greatest length of 

 the same: margins as a whole as in sordida but the distal margin is less strongly 

 oblique truncate. Wings proportionately broader than in sordida, the greatest 

 width contained twice in the greatest length of the same; anterior field rela- 

 tively broad and with its distal margin slightly less sharply angulate than in 

 sordida; axillary field appreciably broader, its margin more regularly arcuate 

 and in detail more crenulate than in sordida. Prosternal spine conical, erect, 

 slightly antrorse : interspace between the mesosternal lobes slightly transverse, 

 regularly widening distad, the caudo-internal angle of the lobes well rounded: 

 metasternal lobes separated by a space equal to about one-half that separating 

 the mesosternal lobes. 



Abdomen moderately compressed, the dorsum tcctato-carinate longitudinally: 

 ovipositor elongate, much produced, but particularly the dorsal {lair, appre- 

 ciably compressed; dorsal pair of valves in lateral view straight proximad, 

 faintly sigmoid distad, the dorsal surface narrowly excavato-deplanate, the 

 dorsal margins subcarinate and distad faintly crenulato-serrulate, the apex 

 bluntly acute when seen from the side, faintly recurved; ventral pair of valves 

 appreciably shorter than the dorsal valves, very slender, almost straight, the 

 distal section decidedly compressed, the margins unarmed, the apex hardly 

 decurved. 



Cephalic coxae with the conspicuously colored section markedly strumose. 

 Cephalic and median limbs relatively short. Caudal femora nearlj' equal to 

 one-half the body length, moderately compressed, in shape and proportions 

 much as in sordida: caudal tibiae proportioned as in sordida, pilose, armed on 

 the external margin with six and on the internal margin with seven to eight 

 spines: caudal tarsi as in sordida. 



Allotijpe. — d^ ; Same data as the type. [Acad. Nat. Sci. Phila.] 



Differing from the description of the type in the features here mentioned. 

 Size relatively small. Head not differing from the description, of that portion 

 in the male; antennae three times as long as the dorsum of the pronotum. 

 Pronotum with the greatest width of the disk contained one and one-fourth 

 times in the greatest length of the same: lateral lobes proportionately narrower 

 in relation to the depth than in sordida. Tegmina suri)assing the apices of 

 the femora by about the length of the pronotal disk, otherwise as in the female. 

 Intcrspa(;e between the mesosternal lobes sublongitudinal, appreciably con- 

 stricted briefly cephalad of the middle, regularly and considerably expanding 

 caudad of the same: interspace between the metasternal lobes strongly longi- 

 tudinal and very narrow. Supra-anal plate of the same form as that found in 

 C. sordida, the sigmoid transverse carina at the proximal two-fifths being slightly 

 less prominent than in that species: cerci of the same general type as occurs in 

 sordida, but more elongate and attentuate distad, the apex also faintly decurved: 

 subgenital plate similar to that of sordida. Caudal femora slightly longer 

 than one-half the body length: caudal tibiae with five to six spines on the 

 external margin and seven to eight spines on the internal margin. 



TRANS. AM. ENT. SOC, XLIV. 



