Newsteadia, GREEN, 1902

Caballero, Alejandro, 2021, Four new scale insect species (Hemiptera: Coccomorpha) associated with coffee roots in Colombia, South America, with identification keys for genera Newsteadia Green, 1902, Distichlicoccus Ferris, 1950, and Paraputo Laing, 1929, Zoosystema 43 (18), pp. 341-363 : 347

IDENTIFICATION KEY TO NEW WORLD SPECIES OF NEWSTEADIA GREEN, 1902 (adapted from the descriptions by Morrison [1925, 1952] and Kozár [2004])

1. Antenna with 5 or more segments ............................................................................................................... 2

— Antenna with 3 segments ............................................................................................................................ 8

2 Basal antennal segment with capitate or clavate setae ................................................................................... 3

— Basal antennal segment without capitate or clavate setae ............................................................................. 4

3 Antenna with 7 segments; ovisac band complete in medial area ...................................................................... ............................................................................................ N. floridensis Kozár & Konczné Benedicty, 2001

— Antenna with 6 segments; ovisac band interrupted in medial area .................................................................. ............................................................................................. N. tropicalis Kozár & Konczné Benedicty, 2001

4 Ovisac band interrupted in mid-region ....................................................................................................... 5

— Ovisac band complete in mid-region ........................................................................................................... 6

5 Wax plates in medial area of dorsum reduced to rows, conspicuously narrower than wax plates in marginal regions ............................................................................... N. brasiliensis Kozár & Konczné Benedicty, 2001

— Wax plates in medial area of dorsum as wide as those in marginal regions ...................................................... .......................................................................................................... N. americana Morrison, 1925 (in part)

6 Labium with clavate setae ......................................................... N. gergoei Konczné Benedicty & Kozár, 2002

— Labium without clavate setae ....................................................................................................................... 7

7 Wax plates on dorsum subdivided in medial area ................................................. N. minima Morrison, 1952

— Wax plates on dorsum in continuous bands across medial area .......... N. americana Morrison, 1925 (in part)

8 Femur and tibia with setae capitate ........................................ N. borhidii Kozár & Konczné Benedicty, 2001

— Femur and tibia with setae acute or blunt, not capitate ............................................................................... 9

9 Venter posterior to vulva with conspicuous clusters of quadrilocular pores ................................................ 10

— Venter posterior to vulva without clusters of quadrilocular pores ............................................................... 11

10 Apical antennal segment with slender flagellate setae ........... N. morrisoni Kozár & Konczné Benedicty, 2001

— Apical antennal segment with thick spine-like setae ......... N. costaricaensis Kozár & Konczné Benedicty, 2001

11 Third antennal segment without subapical seta ..................................................... N. tristani (Silvestri, 1924)

— Third antennal segment with subapical seta ............................................................................................... 12

12 Each thoracic spiracle associated with no more than 2 pores; labium up to 160 µm long; wax plates containing tubular ducts .................................................................................................. N. trisegmentalis Howell, 1975

— Each thoracic spiracle associated with at least 10 pores; labium at least 220 µm long; wax plates without tubular ducts .................................................................................................................................... N. andreae n. sp.