Quinquespinosa septamacula, McKamey, 2023

McKamey, Stuart H., 2023, Three new monobasic genera and three new species of the New World treehopper tribe Acutalini (Hemiptera, Membracidae, Smiliinae) with a key to all genera, ZooKeys 1143, pp. 189-203 : 189

Quinquespinosa septamacula sp. nov.

Figs 18-24 , 25-31

Diagnosis.

Frontoclypeal sutures bordered by conspicuous black spots; pronotum with pair of dorsal pale longitudinal stripes dorsally and another pair more laterally, at level of suprahumeral spines; posterior portion of pronotum with 7 distinct dark marks (Figs 22 , 24 ): 2 pairs, one pair straddling the apical middle spine and the second pair more laterally, behind the bases of apical lateral spines, and one on each of the 3 posterior spines.

Description.

Measurements (mm). Length with forewing in repose ♂ 7.0-7.5, ♀ 8.0-8.5; width across suprahumeral spines ♂ 3.6-4.0, ♀ 4.1-4.3; height in anterior view ♂ 3.1-3.2, ♀ 3.2-3.4. Pronotum. With apical lateral spine extending to Cu vein, middle spine attaining mid-point of Cu and M 3+4 (Fig. 20 ). Terminalia. Male. Pygofer with lateral plate large, subquadrate in dorsal view (Fig. 25 ); subgenital plates subtriangular, tips rounded (Fig. 27 ); style recurved with acute apex (Figs 27-29 ); aedeagus narrow throughout, gradually recurved, its sides bearing short sharp points along outer margin (Figs 26 , 28 , 29 ). Female first valvula gradually narrowed, dorsal margin smooth in basal 3/4ths, weakly crenulate in distal ¼ (Fig. 30 ); second valvula dorsally smooth throughout (Fig. 31 ). Color (female Figs 18-20 , male Figs 22-24 ). Yellow orange throughout except with 2 black marks along head lateral margin and pair straddling frontoclypeus larger than pair just below eyes, and in traverse narrow band on eyes (Figs 19 , 23 ). Pronotum surprahumeral spine apex black, 4-5 pale longitudinal stripes (along lateral margins and laterally) in both genders (Figs 18-20 , 22-24 ), and in male (Fig. 22 ) also on medial carina, and 7 black marks posteriorly (Figs 22 , 24 ): 1 pair straddling base of middle apical spine, 1 pair lateral behind base of each lateral spine, and one on apex of each apical spine.

Material examined.

Holotype ♂ (EPNC) with labels " ECUADOR: NAPO: Reserva Ethnica | Waorani, 1 km. S Onkone Gare | Camp Trans. Ent 9. Feb 1995 | 220m | 11-Feb-1995 00 °39'10"S 076 °26'W | T.L Erwin: et al ", "Insecticidal fogging of mostly bare | green leaves, some with covering | of lichenous or bryophytic plants in | terre firme forest At Trans 1, | Sta. 2 Project MAXUS Lot 1021." and red " HOLOTYPE | Quinquespinosa | Quinquespinosa septamacula | S.H. McKamey. " Non-types: 16 specimens. Two (USNM) have the same data as the holotype except as noted: 1♀ 8-Feb-1996 Lot 971; 1♀ 29-Jun-1994 lot 755. The other specimens have the same data as the holotype except coordinates 00 °39'25.7"S 076 °27'10.8"W and otherwise noted: 1♀ 8-Feb-1996 lot#1470 (EPNC); 1♂, 1♀, 8-Feb-95 Lot 952 (USNM); 1♂ 6-Oct-1994 Lot 873 (EPNC); 1♀ 15-Jan-1994 Lot 579 (USNM); 2♂ 6-Jul-1995 Lot 1114 (EPNC); 1♀ 7 Oct-1995 Lot 1239 (EPNC); 1♀, 8-Feb-1996 Lot 1469 (USNM); 1♀ 3-Oct-1996 Lot 1729 (USNM). There are four non-Ecuadorian specimens: 1♂, (INPA) " BRAZIL: AMAZONAS | Rio Januaca, 40 | km sw Manaus | 10 Mar 1979 | 03 °20' S. 060 °17'W ", "Montgomery, Erwin, | Sucharaov, Scxhimmel. | Kirischik, Date, | Bacon, Collectors", "White water inun- | dation forest canopy | fogged with Pyrethrum | Sample #62. 1♀ (MNHN) "CAMOPI-OYAPOCK | GUYANE 19.Nov-1969, " GUYANE MISSION | BALACHOWSKY-GRUNER | OCT-NOV.1969", "Piege | lumineux", “Muséum Paris | 1095-5". 2♀ (1 MUSM, 1 USNM) with labels " PERU: MADRE DE DIOS | Rio Manu, BIOLAT Biol. Sta., | Pakitza, 356m 26 Sep 1991 | 11°56'47"S 071°17'00"W " | T.L. Erwin ", "Insecticidal fog of bamboo at 4m | green, scattered dry leaves, stems | Tr. Zungaro /3.5 Lot 121."

Distribution.

Brazil, Ecuador, French Guiana, Peru.

Etymology.

The specific epithet is feminine, based on the seven (septa -) black marks (- macula) on the posterior portion of the pronotum.

Notes.

There is variability in the length of the suprahumeral spines and the size of the four preapical black spots (compare Figs 18 and 22 ); neither is correlated to body size or gender. The pronotum of the specimen from French Guiana (MNHN) is unique in being black only on the tips of the five spines, lacking the four other black marks altogether and is considered to be a variety, possibly geographical, of the same species.

The 13 specimens from Ecuador fogging samples in the Reserva Etnica Waorani were collected in January, February, June, July, and October, from 1994-1996. The Peruvian and French Guiana specimens were collected in September (1991) and November (1969), and the Brazilian specimen in March (1979). Considered together, the only gaps are April, May, August, and December. The April-May gap possibly represents the growth of a second generation but the one-month gaps are probably too short to indicate other generations. Other explanations are sampling error, annual or seasonal fluctuations in climate, or that the adults are present throughout the year at least somewhere in their large range.

All specimens were collected by insecticidal fogging of the tree canopy (one from inundation forest and the others from terre firme forest) except the specimen from French Guiana, which was collected at a light trap. Although various leafhoppers feed on bamboo, no treehoppers have been found feeding on it, so the bamboo record for the Peruvian specimen is probably not its host plant.

Figures

Figures 18 - 24. Quinquespinosa septamacula, sp. nov. 18 - 20 female habitus in dorsal, anterior, and lateral views, respectively 21 forewing and hind wing 22 - 24 male habitus in dorsal, anterior, and lateral views, respectively.

Figures 25 - 31. Terminalia of Quinquespinosa septamacula sp. nov. 25 male pygofer and subgenital plate in dorsal view 26 undissected male terminalia 27 male pygofer and subgenital plate in ventral view 28, 29 aedeagus and left style in lateral and posterior views, respectively 30 undissected female terminalia 31 distal half of second valvula, lateral view. lp, lateral plate.