JAMES A. G. REHN 337 



Cephalic and median limbs of average development. Caudal femora two 

 and one-half times as long as the pronotal disk, with the greatest depth con- 

 tained three and one-haK times in the greatest length of the same : caudal tibiae 

 falling short of the femoral length by about the length of the metazona of the 

 pronotum, armed on the external margins with seven to eight spines, on the 

 internal margins with eight to nine spines. 



General color very dull aniline yellow, approaching orange-citrine on the 

 dorsum of the pronotum, the hmbs touched with citrine, the apex of the abdo- 

 men weakly hght cadmium ; f astigium and face caudad to the infra-ocular sul- 

 cus, clove brown. The broad postocular bars, which take up one-haK the 

 depth of the lateral lobes of the pronotum, are continued to and over the dorsal 

 portion of the pleura, shining blackish brown. Eyes dark chestnut; antennae 

 pinkish cinnamon proximad, passing to tawny-oUve distad, the apex infuscate. 

 Tegmina with discoidal field bearing a gradually weakening continuation of 

 the postocular bars, chiefly formed by lining of the venation. A second black- 

 ish brown irregular line is indicated on the mesoj)leura dorso-cephalad of the 

 median coxal insertion, and on the meta!)leura dorso-cephalad of the caudal 

 coxal insertion. Caudal femora with the genicular arches blackish brown, 

 the dorsal surface of the interlobal section clove brown; caudal tibiae passing 

 from ochraceous-salmon proximad to coral red distad, spines antimony j'ellow, 

 black tipped. Caudal tarsi ochraceous-buff, dorsum of metatarsi washed with 

 pale coral red. 



Length of body, 20.2 mm.; length of pronotum, 4; greatest dorsal width of 

 pronotal disk, 2.5; length of tegmen, 16; length of caudal femur, 10.5. 



The type is unique. 



Dichroplus forcipatus new species'* (PI. XVIII, fig. 15.) 



Closely allied to D. bj'asiliensis (pi. XVIII, fig. 16), but differing 

 in the slightly longer tcgniina and wings, the obsolete or at least 

 subobsolete character of the usual dark lateral bars and the com- 

 plete elimination of the generally marked pale dorso-lateral bars 

 of brasiliensis, in the less s(|uarely truncate distal margin of the 

 caudal genicular lobes, in th(^ much duller color contrasts of the 

 caudal femora and tibiae, in the more delicately conical prosternal 

 spine, in the male supra-anal plate having the distal portion very 



'' Several years ago the author recorded (Proc. Acad. Nat. Sci. Phila., 191.3, 

 p. 345, (1913)) a single male specimen of the genus Dichroplus from the terri- 

 tory of Misiones, Argentina, as D. brasiliensis, the latter a species very briefly 

 characterized in its original description, where no mention was made of the 

 genitalic characters of the male. At that time females of true brasiliensis 

 were at hand, but no males, and with these females the Misiones male agreed 

 quite well. Since that date, however, we have received a series of both sexes 

 of brasiliensis and a few additional specimens of both sexes of the Misiones 

 form and we find them to be distinct, differing most strikingly in the form of the 

 male cerci. 



TRANS. AM. ENT. SOC, XLIV. 



