BUFFALO SOCIETY OF NATURAL SCIENCES 103 



i. Vanduzea arquata Say. PL 2, fig. 30. 



Very abundant on locust trees from Ohio southward. The 

 ground color varies from ferruginous to almost black, but 

 always there is an oblique vitta on either side and a band close 

 to the apex white. Walker's Ccrcsa apicalis seems to me to be 

 very near this. 



2. Vanduzea vestita Goding. 



This species is smaller than arquata, has more prominent 

 humeri and has the pronotum broader posteriorly and propor- 

 tionately longer, reaching to the base of the apical areole. The 

 males are black with a narrow transverse band before the apex, 

 an oblique vitta on each lateral margin and sometimes a dorsal 

 mark between them, white. Female larger, brown or ferrugin- 

 ous, becoming darker posteriorly and marked as in the male. 

 I took this species in Colorado and the Cornell University col- 

 lection has a series from Arizona. 



3. Vanduzea segmentata Fowler. 



Dorsum regularly but not greatly arcuated, not compressed 

 as in Cyrtolobus and in a lesser degree than in Vanduzea Iceta ; 

 obtuse apex of the pronotum attaining the base of the trans- 

 verse terminal areole of the elytra. Elytral venation very ir- 

 regular but characteristic of this genus; the costal areole very 

 narrow, coriaceous and punctured on the basal third with a few 

 punctures scattered along the costal nervure beyond. Color 

 pale fulvous yellow on the head and pronotum ; breast, legs, 

 base of the elytra and its apical areole dull chocolate brown. 

 Sides of the pronotum with a half round fuscous mark, more or 

 less distinct, on either side resting on the humeral angle anter- 

 iorly and including a few minute pale points; bordering this 

 fuscous spot posteriorly is a white band which is slenderly out- 

 lined with brown behind. Extreme tip of the pronotum ob- 

 scurely brown, faintly bordered with pale anteriorly. Length 

 5 mm. 



The collection of Cornell University contains a good series 

 of this species from Arizona, some of which are darker and are 

 varied with brown on the head and metopidium. Prof. Wick- 

 ham has sent me one female from Texas that is of a clearer 

 yellow and is much larger than those from Arizona. 



