350 PROCEEDINGS OF THE ACADEMY OF [May, 



marginal, the true apex bluntly tuberculate. Cephalic and median 

 femora slightly inflated. Caudal femora slender; caudal tibiae 

 armed on the external margin with nine spines. 



General color of the dorsum prout's brown, passing on the tegmina 

 into pale raw umber. Head with the face bice green, passing into 

 apple green on the gense; a broad postocular bar greenish-black, 

 margined dorsad by a narrow area of yellowish; eyes tawny-olive; 

 antennae prout's brown. Postocular bar continued over the lateral 

 lobes of the pronotum, becoming obsolete on the metazona, the dorsal 

 portion of the bar decidedly greenish, ventral portion black, remainder 

 of lateral lobes ecru drab cephalad, greenish caudad. Cephalic and 

 median limbs between oil and bice green in color, lined more or less 

 with black. Caudal femora oil green dorsad, external face citron 

 yellow ventrad, genicular arched black; caudal tibise and tarsi pale 

 coral red, spines salmon at base, distad tipped with black. 



Allotype: 9 ; data similar to that of the type. 



Differing from the male sex in the following important characters ; 

 Size moderately large; form moderately robust. Interspace between 

 the eyes about equal to three-fourths the width of one of the eyes; 

 fastigium shallowly excavate; frontal costa broad, very faintly 

 expanding caudad, excavate only in the vicinity of the ocellus; eye 

 more reniform than ovate. Interspace between the mesosternal 

 lobes contained about one and one-half times in the length of the 

 same; metasternal lobes but shghtly separated caudad. Coloration 

 very similar to that of the male, but the dorsal color is more hazel 

 than prout's brown. 



Measurements. 



Type Allotype 



(male). (female). 



Length of body 20. mm. 25.8 mm. 



Length of pronotum 4.6 " 6. " 



Length of tegmen 16. " 19.3 " 



Length of caudal femur 11.2 " 14.5 '' 



In addition to the type and allotype, we have before us two para- 

 typic males. These males fully agree with the type, and the differen- 

 tial characters of the female sex are given above. A label with the 

 specimens tells us they are "very common." 

 Paradichroplus nigrigena n. sp. 



Type: cT ; Misiones, Argentina. May 1, 1909. (P. Jorgensen.) 

 [Acad. Nat. Sci. Phila., type No. 5,220.] 



A very peculiar species which seems to be closer to P. bilohus and 



