1918.] NATURAL SCIENCES OF PHILADELPHIA. 175 



ventral face aniline yellow or washed with garnet browni, the proximal 

 portion of the femora washed more or less completely with nopal 

 red ; caudal tibiae deep slate blue, paler along the margins, an incom- 

 plete proximal yellowish annulus, spines yellowish, black tipped; 

 caudal tarsi dull greenish, faintly washed with reddish (this probably 

 more extensive and much stronger in life), internal margin of the 

 two proximal joints lined with black. 



In the single recessively colored incUvidual before us the dorsal pale 

 lines are greatly subdued and the femoral bands, particularly the 

 caudal ones, are obsolete, while the general color is less distinctly 

 greenish and in places more brownish. The pale antennal tips and 

 the ventral pair of pale bands are, however, as decided as in the in- 

 tensively colored specimens. 



Measurements (in millimeters). 



cf 9 



(Type) (AUotype) 



Length of body 18.7 25.4 



Length of pronotum 4 5.2 



Greatest width of dorsum of pronotum 2.5 3.9 



Length of tegmen 15.1 19 



Length of caudal femur 12.2 15.2 



In adchtion to the type and allotj^pe we have before us two para- 

 typic females, which show structural differences only in the faintly 

 more bullate dorsum of the pronotum of one specimen, which is of 

 the recessive type of coloration noted above. An interesting thing 

 concerning one female paratype is that the left antenna was broken 

 off at the sixth joint some time during the life of the insect, and there 

 has been regenerated distad of that joint a terminal joint much longer 

 and appreciably^ more bulbous than the other segments, which ter- 

 minal segment, curiously enough, bears a narrow terminal pale mark- 

 ing. Since writing the above we have had placed in our hands a 

 single female of the species from Albina, Surinam, collected May, 

 1904, by William Schaus, and belonging to the United States National 

 Museum. This individual is more brownish than the Igarape-assu 

 specimens, with the pattern recessive in character. 



CHLOROPSEUSTES27 new genus. 



A member of the Tetratseniae and allied to Tetratcenia, M'astusia 

 and Eumastusia, but completely apterous and in general form strongly 

 resembling species of the Coscineutid genus Dellia, from which, how- 

 ever, Chloropseustes can be immediately separated by the expanded 



^' From ;i:/.w/3of green, ipevar)/^ deceiver. 



