432 SNODGRASS 



front of the subocular stripe and back of the black punctations along 

 the anterior edge of the gena ; a third is in front of these spots and 

 laterad of the frontal costa, occupying the subantennal groove. It will 

 be seen from this description that these areas correspond exactly with 

 the yellow markings of the sides and front of the head of all the 

 kS". 7nelanocera forms. Prozona with a very distinct median yellow 

 stripe continuous in front with the median yellow stripe of vertex and 

 posteriorly extending rather reduced across metazona ; dorsal parts of 

 prozona to level of post-ocular stripe, dusky, very slightly darker 

 along outer margin, on the angle of scutum and scutellum a wide 

 yellow band, below this the sides of the prozona reddish-brown with 

 an admixture of dusky showing a tendency to intensify along the 

 lower margin of the yellow above. This character, therefore, recalls 

 the yellow stripe along the angle of the prozona in the literosa forms, 

 with a black stripe above and another below it. Metazona in general 

 paler than prozona, uniform reddish-brown, contrasting conspicuously 

 with the darker colored prozona ; along the anterior border an infusion 

 of dusky, especially above, from the prozona, and punctations of the 

 same color along the posterior margin. Sides of meso- and meta- 

 thorax plain reddish-brown, lower surfaces uniform, darker than the 

 sides. Abdomen brown with black streaks. 



Prothoracic and mesothoracic legs reddish-brown with black mot- 

 tlings. Metathoracic femora with the general color yellowish ; entire 

 Inner surface between the two inner carinae, except a short space just 

 in front of posterior swelling, black. Two large black spots on dor- 

 sal side reaching from inner black area to middle of outer side ; from 

 anterior one of these spots a line of black mottling runs forward 

 along middle of femur to near anterior end ; lower lateral lobes of 

 posterior enlargement 3-ellow, upper lobes black with yellow tips, 

 space between on dorsal surface posteriorly yellowish with brown 

 spots, anteriorly black ; lower outer and lower median carinae, with a 

 row of small black spots. Tibiae plain yellow, with obsolete dark 

 spots along upper parts of sides, spines black-tipped. Tegmina with 

 the veins pale reddish-brown, the reticulation of the post-median area 

 gray or grayish-brown, those of the premedian area pale gray, post- 

 median area with distinct dark quadrate maculations, most distinct 

 anteriorly where they are also elongate and crowded ; posterior wings 

 almost uniform pale with a very slight apical infuscation. Length of 

 tegmina, 53 mm. 



Variations (25 specimens). — The specimens from this island form 

 as a whole a well-marked race, but present a great amount of variation 



