Cephisus jacobii Lallemand

Hamilton, Andrew, 2012, Revision of Neotropical aphrophorine spittlebugs, part 1: Ptyelini (Hemiptera, Cercopoidea), Zootaxa 3497, pp. 41-59 : 50

Cephisus jacobii Lallemand

( Fig 14 B)

Cephisus jacobii Lallemand, 1912: 39 .

Type locality. French Guiana.

Diagnosis. The darkest species in the genus, chocolate brown, darker ventrally, unmarked or with a few indefinite pale maculations on tegmina, and with uniquely serrated thecal processes. Head 0.75x as wide as pronotum (lateral margins of pronotum thus much longer than 3/4 length of eye); robust; crown steeply sloping, about 45o to plane of scutellum, coplanar with front part of pronotum. Male genitalia as in C. diminutus , but lateral processes of theca directed outwards, ventral processes intricately serrate ( Fig. 14 B). Length: male 12.6 mm, female 15.2 [type]– 18.5 mm. Width across head: female 4.5 mm; across pronotum: female 6.0 mm.

Type. Lectotype female of jacobii , here designated: Cayenne [ FRENCH GUIANA]; in BMNH.

Additional material. PERU: 1 male, Rio Tapiche 6,154' [3000 m ASL], 26 July 1923 (H. Bassler) Acc. 33591; in AMNH. BRITISH GUIANA [ GUYANA]: 1 female, New River 750' [150 m ASL], 26 Mar.–2 April 1938 (C.A. Hudson); in BMNH.

Distribution. Rare; localities in northern South America are from the Caribbean coast and the upper reaches of the Amazon Basin in Peru.

Remarks. This species has the same blunt and minutely serrate tips of the lateral theca processes as C. diminutus and is probably its sister-species. It is darker and more robust, with a steeper slope to the crown. The coarsely serrate margin of each ventral theca process is peculiar to this species.

Figures

FIGURES 5 – 15. Male genitalia of Ptyelini in lateral aspect (A), caudal aspect of theca (B) and widest aspect of style (C). 5. genital capsule of Ptyelus; 6. same, of Cephisus; 7. syntype male of C. sanguisuga; 8. C. diminutus, holotype; 9. C. laticeps, holotype; 10. C. xanthocephala; 11. C. magnificus, holotype; 12. C. variolosus; 13. C. siccifolia; 14. C. jacobii; 15. C. brevipennis, holotype.