32 LIST OF HOMOPTEROUS INSECTS. 



Cicada umbrimargo. 



Foem. Lutea ; caput vittis duabus latis connexis vittaque antica 

 lanceolata nigris ; prothorax vittis duabus connexis, gutta. 

 postica strigisque quatuor later 'alibus ; meso thorax vittis qua- 

 tuor obconicis strigaque postica nigris ; abdomen fasciis, vittis 

 duabus latis apicalibus guttisque duabus apicalibus nigris ; 

 ala vitrece ; anticce angnstce, apice, margine exteriore venisque 

 transversis fusco nebulosis. 



Female. Luteous. Head with two broad irregular black 

 stripes, which are connected between the ocelli ; face with a lanceo- 

 late black stripe, which emits branches along the furrows, contains 

 a luteous dot, and is almost connected on each side with the band. 

 Prothorax with two black stripes, which are connected in the 

 middle, and are widened and diverging in front and behind, where 

 there is a black dot; two black streaks on each side; border edged 

 with black, and armed with a tooth on each side. Mesothorax with 

 four obconical black stripes ; a lanceolate black streak behind the 

 inner pair, which are very short. Abdomen with a black band on 

 the fore border of each segment; last segment with two broad black 

 stripes and two black dots. Wings vitreous ; veins luteous, black 

 towards the tips. Fore wings narrow, clouded with brown at 

 the tips and along the exterior border ; fold testaceous ; hind vein 

 black ; first and second transverse veins clouded with dark brown, 

 nearly straight, parted from each other by a little more than the 

 length of the first, which is rather more oblique than the second ; 

 third and fourth almost straight; third shorter than the fourth, 

 which, like the adjoining marginal veins, is clouded with brown. 

 Length of the body 11 lines ; of the wings 34 lines. 



a. Swan Kiver. From Dr. Bacon's collection. 



Cicada interstans. 



Fcem. Fulva, subtus testacea ; verticis discus niger ; fades nigra 

 quadrivittata ; prothorax vitta testacea nigro marginata, 

 strigis sex lateralibus nigris, margine testaceo ; mesothorax 

 vittis quatuor nigris obconicis maculisque duabus posticis 

 nigris ; abdomen rufo-fulvum, segmentis nigro fasciatis, vittis 

 duabus apicalibus nigris ; pedes nigro vitta ti ; alee vitrece. 



Female. Tawny, testaceous beneath. Vertex of the head with 

 a black disk ; face with four broad black stripes. Prothorax with 



