Vol. XXvii] ENTOMOLOGICAL NEWS. 293 



four short stout widely spaced spines, succeeded distad by a close 

 set row of short stout hairs, these terminated distad by a single short 

 stout spine; ventro-caudal margin of cephalic femora and ventral mar- 

 gins of other femora supplied with a similar single distal spine. Me- 

 dian and caudal femora armed in addition with a single longer genicu- 



lar spine. 



Measurements (in millimeters}. 



Length Length Width Length Width Width Length in 

 9 of of pro- ol pro- of of teg- of margi- width in 



body notum notum legmen men nal field pronotunu 



Caparo, Trinidad 58 3 16.8 22.0 69.6 22.4 6.3 



Caparo, Trinidad 56.6 15.6 20.7 63.8 21.3 5.6 



Caparo, Trinidad 57.0 15.0. 20.0 64.3 21.0 



Gorgona, Panama 53.6 15.6 22.7 63.0 22.3 7.0 



St. Jean, French Guiana 58.8 15.7 22.2 70.7 25.2 7.6 



31 

 33 

 33 + 

 .46 



Guatemala 54.6 14.3 20.2 53.8 20.7 6.0 X .41 + 



San Carlos, Costa Rica 59.6 16.0 23.2 67.7 24.5 7.7 X .45 



Costa Rica 58.7 16.9 24.6 70.8 24.8 7.0 X .45 



San Esteban, Venezuela 64.0 16.0 22.8 69.4 25.0 6.3 X 1.43 



San Esteban, Venezuela 60.0 14.9 20.7 64.7 22.9 X 1.49 



Maroni River, Fr. Guiana 59.0 16.6 23.7 68.4 26.2 7.0 X 1.43 



Coloration. In intensive examples (Costa Rica) exactly as described 

 under giganteus. Through recessive stages first the distal suffusion of 

 the tegmen disappears (Trinidad), then all markings except the black- 

 ish brown proximal fifth of the humeral trunk. In the condition of 

 maximum recession (majority of Trinidad material) the pronotal 

 margins are warm buff, the tegmina clear transparent warm buff with 

 but small dashes of blackish brown at base of humeral trunk. Three 

 recessive examples before us (Trinidad) have two dots of zinc orange 

 mesad in the pronotal spot, while an intensive specimen (Costa Rica) 

 has four of these dots. The pronotal spot is often in full contact with 

 the caudal margin of the pronotum, usually it is distinctly narrowed 

 there, while in a few specimens it fails to reach that margin by a nar- 

 row interval. 



Specimens Examined: 23, 16 males, 7 females. 



Olas de Moka, Solola, Guatemala, 3,000 feet, IX, 1908, 

 i $, [U. S. N. M.]. 



Senahu, Alta Vera Paz, Guatemala, (P. Haase), i $, [U. 

 S. N. M.I. 



Guatemala, i$, [Am. Mus. Nat. Hist.]. 



San Carlos, Costa Rica, (Schild-Burgdorf), 2 $, 2 9, [U. 

 S. N. M. and A. N. S. P.I. 



Costa Rica, (M. A. Carriker, Jr.), i 9 , [Hcbard On.]. 



Gorgona, Canal Zone, Panama, i $, [A. N. S. P.]. 



4 Saussure gives for his material, the length contained in the pronotal 

 width, in giganteus 1.48 to 1.50, in his mexicana (synonym of colossetis) 

 1.40 to 1.45. 



