Deois (Deois) bisignata Carvalho, 2011

Carvalho, Gervásio Silva & Teixeira, Juliana Stephanie Galaschi, 2011, Two new species of Deois Fennah, 1949 (Hemiptera: Cercopidae) from Brazil, Zootaxa 2808 (1), pp. 64-68 : 64-68

Deois (Deois) bisignata Carvalho sp. nov.

( Figs 1 – 7 )

Measurements (mm). 8 males / 10 females: total length, 7.31/7.69; head length, 0.77/0.88; head width, 1.08/1.24; pronotum length, 1.44/1.58; pronotum width, 2.37/2.57; scutellum length, 1.28/1.41; scutellum width, 1.01/1.17; tegmina length, 5.62/5.95; tegmina width, 1.91/1.95.

Diagnosis. General color ( Figs 1, 2 ) black; tegmina dark brown, with two orange spots at apical third of corium, one larger in costal margin, and another in the same level of claval extremity. Dark legs with femur extremity and tibiae (principally hind tibia) orange.

Description. Holotype male (Total length: 7.7 mm). Head ( Fig. 1 ) black, distinctly narrower than pronotum; vertex convex; supra - antennal margin pale orange; tylus black, quadrangular, with median carina; ocelli vitreous, closer to each other than to eyes or posterior margin of head; eyes brown with irregular dark spots; antennae with brown pedicel, which is cylindrical, partially visible from above; flagellum with sub-cylindrical body brown, slightly projected out of pedicel, with arista smaller than pedicel; postclypeus black, inflated, indented profile, longer than wide, with carina reaching tylus; anteclypeus black, longer than the last rostral segment, this shorter than the preceding segment; rostrum black, reaching mesotrochanters.

Pronotum ( Fig. 1 ) black, hexagonal, weakly punctured, without median carina, with two circular impressions and decumbent pilosity on each side in the anterior area; anterior and latero-anterior margins straight, latero-posterior margin slightly sinuated, and posterior margin chamfered; humeral angles rounded. Scutellum ( Fig. 1 ) triangular, black. Tegmina ( Figs 1, 2 ) finely punctured; dark brown, with two orange spots at apical third of corium, the larger one in costal margin, and the other in the same level of claval extremity, not reaching clavus; M and Cu1 united on anterior third with a transversal vein; veins and apical reticulation prominent; A1 distinct, A2 absent. Wing vitreous, veins well marked, with four apical cells; hamuliferous lobes triangular; Cu1 thickened near base.

Legs black, anterior and median with extremity of femora orange; posterior leg with tibiae orange and two lateral spines, the basal one, slightly larger than the apical spines, smaller than apical one; the apical spines, 10 in number, in two rows; posterior basitarsus with 15 apical spines, in two irregular rows; median segment with 17 apical spines; subungueal process small. Thorax beneath black. Abdomen black.

Pygofer black, with a latero-posterior lobe (tooth) slightly curved downward ( Fig. 3 ); subgenital plates rectangular with bilobed apex ( Fig. 3 ); parameres with basal-dorsal elevation well pronounced, apical tooth pointed slightly outward and downward ( Figs 4, 5 ); aedeagus cylindrical, curved, extremity with small teeth, one pair of latero-ventral wing-shaped processes at basal third directed anteriorly and a pair of dorsal small process at apical third directed posteriorly at the same level as foramen ( Figs 6, 7 ).

Female. Similar to the male in general appearance and color; ovipositor with basal processes small and spoonshaped.

Type material. Holotype male, BRASIL: Mato Grosso do Sul, Campo Grande , 10.II.1989, Koller, W. W. leg. ( MCTP) . Paratypes: 5 males and 16 females ( MCTP) , 1 male and 1 female ( BMNH) , 1 male and 1 female ( DZUP) , 1 male and 1 female ( MZSP) , same data as holotype .

Etymology. This species is named for the two orange spots on the tegmina.

Remarks. This species can be easily distinguished from other known species in Deois by its tegmina with two distinct orange spots at apical third of corium ( Figs 1, 2 ) and the aedeagus with two double wing–shaped processes at basal third ( Figs 6, 7 ).

Deois (Deois) quadrisignata Teixeira sp.nov.

( Figs 8–14 )

Measurements (mm). 10 males / 1 female: total length, 10.18/10.78; head length, 0.90/0.90; head width, 2.32/2.41; pronotum length, 2.08/2.08; pronotum width, 3.31/3.44; scutellum length, 1.93/1.88; scutellum width, 1.46/1.45; tegmina length, 8.84/9.10; tegmina width, 2.92/2.96.

Diagnosis. General color ( Figs 8, 9 ) dark brown; tegmina dark brown, with an orange line on claval suture and four orange spots: two along costal margin, one before middle of tegmina and the other (the largest) at apical third; the other two along claval suture, one at apex of clavus and the other in midline of clavus; dark legs with articular regions and hind tibia red.

Description. Holotype male (Total length: 10.64 mm). Head ( Fig. 8 ) dark brown, 2.5 times wider than long, distinctly narrower than pronotum; vertex convex; tylus black, quadrangular, with median carina; ocelli golden, nearer each other than to eyes and posterior margin of head; eyes dark brown; antennae with reddish brown cylindrical pedicel that is not visible from above; flagellum with sub-cylindrical body reddish brown, slightly projected out of pedicel, with arista smaller than pedicel; postclypeus black, inflated, indented profile, longer than wide, with carina reaching tylus; anteclypeus black, longer than last rostral segment, this shorter than the preceding segment; rostrum black, reaching posterior margins of mesocoxae.

Pronotum ( Fig. 8 ) black, hexagonal, weakly punctured, with median carina, approximately 1.5 times wider than long with two circular impressions and decumbent pilosity on each side in anterior area; anterior and lateroanterior margins straight, latero-posterior margin slightly sinuated, and posterior margin chamfered; humeral angles rounded. Scutellum ( Fig. 8 ) triangular, dark brown. Tegmina ( Figs 8, 9 ) finely punctured, approximately 3.0 times longer than wide, dark brown, with an orange line on claval suture and four orange spots: two along costal margin, one before middle of tegmina and the other (the largest) at apical third; the other two along claval suture, one at apex of clavus and the other in midline of clavus; M and Cu1 coalesced on anterior third, veins and apical reticulation prominent; A1 distinct, A2 absent. Wing vitreous, veins well marked; hamuliferous lobes triangular; Cu1 thickened near base.

Legs dark brown, all with extremities of coxae and femurs red; tibiae red, and with two lateral spines: the basal one smaller, equal in size to the apical spines, these numbering 12 in two rows; posterior basitarsus with 15 apical spines, in one row; median segment with 16 apical spines; subungueal process small. Thorax brown. Abdomen brown with margins of segments red.

Pygofer black, with two latero-posterior lobes (teeth), the upper one inconspicuous and lower one finger-like ( Fig. 10 ); subgenital plates rectangular with bilobed apex; external lobe rounded and wider than the inner one, this more or less finger-like ( Fig. 10 ); parameres with basal-dorsal elevation well pronounced, apical tooth acute and directed slightly outward and downward ( Figs 11, 12 ); aedeagus cylindrical, curved, with two row of spines, one on each side of aedeagus, from base to apex of the stem; apex bifid and gonopore apical ( Figs 13, 14 ).

Female. Ovipositor with basal processes of the first valve spoon-shaped, turned inward, with the ends touching.

Type material. Holotype male, BRASIL: Goias, Cabeceiras , 24 – 27.X.1964, Exp. Dep. Zool. leg. ( MCTP) . Paratypes: 4 males and 1 female ( MCTP) , 1 male ( BMNH) , 1 male and 1 female ( DZUP) , 5 males ( MZSP) , same data as holotype .

Etymology. This species is named for the presence of the four distinct orange spots on the tegmina.

Remarks. This species resembles in overall morphology D. (D.) piraporae ( Sakakibara, 1979) and D. (D.) spinulata ( Costa & Sakakibara, 2002) , but can be distinguished by the round claval maculae close to the midlength of the claval suture. The shape of the subgenital plates and rows of spines on the aedeagus are characteristics that justify the description of this species and distinguish it from other known species of the genus.

Figures

FIGURES 1–7. Deois (Deois) bisignata Carvalho sp. nov. 1. body, dorsal view (scale= 3mm); 2. body, lateral view (scale= 3mm); 3. pygofer and subgenital plates, lateral view; 4. paramere, external lateral view; 5. apical teeth of paramer; 6. aedeagus, lateral view; 7. apex of aedeagus, dorsal view.

FIGURES 8–14. Deois (Deois) quadrisignata Teixeira sp. nov. 8. body, dorsal view (scale= 3mm); 9. body, lateral view (scale= 3mm); 10. pygofer and subgenital plates, lateral view; 11. paramere, external lateral view; 12. apical teeth of parameres; 13. aedeagus, lateral view; 14. apex of aedeagus, dorsal view.