304 Mr. F. Walker on undescribed Species of Homoptera. 



oblique spines. Wings vitreous ; veins black. Fore wings very long ; 

 costa white, bordered with black ; 1st and 2nd transverse veins up- 

 right ; 1st a little longer than the 2nd, from which it is parted by about 

 four times its length ; 3rd and 4th oblique. Length of the body 8 lines ; 

 of the wings 24 lines. 

 Moreton Bay. 

 _This species has most affinity to C. infans of New Zealand. 



dentivitta. Mas. Testacea ; vertex nigro bivittatus et birna- 

 culatus ; prothorax vittis quatuor nigricantibus duabusque nigris ; 

 mesothorax vittis quatuor nigricantibus ; alse vitrea?, venis nigris basi 

 testaceis ; anticse vitta lunulata nigra, costa testacea. 



Male. Testaceous. Head nearly as broad as the thorax ; vertex 

 with two short black stripes, and with a black spot on each side hind- 

 ward. Eyes very prominent. Prothorax well developed, with four 

 blackish and with two exterior black stripes ; middle pair of stripes 

 slender, approximate; 2nd pair broad, irregular. Mesothorax with 

 four blackish stripes ; the outer pair abbreviated. Fore femora incras- 

 sated. Wings vitreous, very shining. Fore wings with a black lunu- 

 late stripe near the interior border ; veins black, testaceous towards the 

 base ; costa testaceous ; 1st transverse vein oblique, parted by about 

 thrice its length from the 2nd, which is upright ; 3rd and 4th oblique ; 

 3rd rather shorter than the 4th. Length of the body 6 lines ; of the 

 wings 17 lines. 



Siam. 



Cicada sebiceivitta. Mas. Pallide testaceo-flava ; vertex nigro 

 bipunctatus; mesothorax nigricante bivittatus; abdomen linea ventrali 

 punctulari fuscescente; tibia? anticre apice tarsique antici nigra; ala3 

 vitrea?, venis albidis apice nigris. 



Male. Pale testaceous .yellow. Head as broad as the thorax, with 

 a black point on each side of the vertex. Prothorax with four furrows, 

 which converge hindward. Mesothorax with a blackish stripe on each 

 side. Abdomen beneath with a line of brownish points. Fore femora 

 incrassated, with black spines ; fore tarsi and tips of fore tibiae black. 

 Wings vitreous ; veins whitish, black towards the tips and along the 

 interior border ; 1st and 2nd transverse veins upright ; 1st parted by 

 full thrice its length from the 2nd ; 3rd and 4th oblique, about equal 

 in length. Length of the body 6 lines ; of the wings 15 lines. 

 Sydney. 



Mas. Corpus sat gracile. Caput lanceolatum, quadrilaterale, subascen- 

 dens, apice acutum, thorace non brevius. Prothorax transversus, 

 bicarinatus. Mesothorax parvus. Pedes breves, lati, subspinosi. Alse 

 anticse opaca?, sat angusta?, apice rotundatse. 



Male. Body rather slender. Head slightly ascending, lanceolate, 

 quadrilateral, deeper than broad, acute at the tip, deeply grooved 



