Paronella (Barra, 1969)

Nguyen, Minh & Soto-Adames, Felipe N., 2018, Annotated checklist of Afrotropical Trogolaphysa Mills, 1938 (Hexapoda: Collembola: Paronellidae) and description of a new species from Madagascar, Zoosystema 40 (10), pp. 179-196 : 193

KEY TO AFRICAN SPECIES OF PARONELLA -LIKE FORMS HERE ASSIGNED TO TROGOLAPHYSA MILLS, 1938

1. Unguiculus truncate ( Fig. 5H ) .................................................................................................................... 2

— Unguiculus lanceolate ( Figs 5 B-E) ............................................................................................................... 3

2. Metathorax to 2 nd abdominal segment uniformly dark blue ( Fig. 5J ); dens with inner row spines apically acuminate ( Ivory Coast) ............................................................ T. beguei (Delamare Debouteville, 1951) n. comb.

— Mesothorax to 2 nd abdominal segment never uniformly dark blue; dens with inner row spines apically asymmetrically ciliate, brush-like ( Cameroon, Ivory Coast, Gabon) ............. T. penicillata ( Schött, 1927) n. comb.

3. Mucro with 5 teeth ( Fig. 5F ) ....................................................................................................................... 4

— Mucro with 3-4 teeth ( Figs 3C, D , 5G ) ....................................................................................................... 5

4. Abdomen 4 medially with dark blue square; unguis with one paired inner tooth clearly larger than other, much larger than proximal unpaired tooth; Mucro with basal teeth more or less evenly distributed ( Fig. 5F ) ( Gabon) .............................................................................................................. T. monomaculata ( Barra, 1969)

— Abdomen 4 white, without marks; Unguis with paired inner teeth subequal, and not much larger than unpaired tooth; Mucro with basal teeth grouped on proximal end ( Fig. 5G ) ( Gabon) .............. T. vivieni ( Barra, 1969)

5. Mucro with 3 teeth; tenet hair relatively short in relation to unguiculus ( Fig. 5A ); Unguis with 3 inner teeth ( Ivory Coast) .................................................................... T. grassei (Delamare Debouteville, 1952) n. comb.

— Mucro with 4 teeth; tenet hair normally long in relation to unguiculus ( Fig. 5B ); Unguis with 3-4 inner teeth .... 6

6. Unguis with 4 inner teeth ............................................................................................................................ 7

— Unguis with 3 inner teeth .......................................................................................................................... 10

7. Antennomere 1 white, antennomeres 2-4 uniformly dark blue ( Fig. 5I ); femora white, tibiotarsi blue ( Guinea) ........................................................................ T. lamottei (Delamare Debouteville, 1950) n. comb.

— Antennomeres 1-2 white/yellow or light blue, antennomeres 3-4 darker; legs with all segments blue, brown or yellow .......................................................................................................................................................... 8

8. Unguis with all teeth inserted on distal half of inner edge ( Fig. 5C ) ( Tanzania, Madagascar?) ......................... .......................................................................................................... T. fuelleborni ( Börner, 1903) n. comb.

— Unguis with basal teeth inserted on basal half & unpaired teeth on distal half of inner edge ( Fig. 5B ) ......... 9

9. Body yellow ( Republic of Congo) .................................................... T. ghesquierei ( Marlier, 1945) n. comb.

— Body blue ( Madagascar) .................................................................................................. T. judithnajtae n. sp.

10. Head macrochaetae A3 and Pa5 absent ( Cameroon, Ivory Coast, Rwanda, Burundi, Tanzania, Ethiopia) ..................................................................................................... T. nigromaculata ( Schött, 1903) n. comb.

— Head macrochaetae A3 and Pa5 present ( Fig. 2A ) ...................................................................................... 11

11. Antennae, legs and body uniformly white; eye patch with up to 9 chaetae; Setiform labral papillae present; Dens with 1 row of spines ( Kenya) ................................................................. T. wahlgreni ( Mitra, 2002) n. comb.

— Antennae and legs uniformly dark blue, body with a general blue tint; eye patch with up to 6 chaetae; Setiform labral papillae absent; Dens with 2 row of spines ( Madagascar) ...................................... T. judithnajtae n. sp.

Figures

FIG. 5. — A, Trogolaphysa grassei (Delamare Debouteville, 1952) n. comb.hind claw form Delamare-Deboutteville (1952);B, T. ghesquierei (Marlier,1945) n. comb. hind claw from Marlier (1945);C, T. fuelleborni n. comb.hind claw from Börner (1903); D, T.monomaculata, hind claw from Barra (1969);E, L. flava, hind claw from Carpenter (1916); F, T. monomaculata, mucro from Barra (1969); G, T. vivieni, mucro from Barra (1969); H, T. beguei (Delamare Debouteville, 1951) n. comb, hind claw complex, modified from Delamare Deboutteville (1951a); I, T. lamottei (Delamare Debouteville,1950) n. comb.habitus, modified from Delamare Deboutteville (1950b); J, T. beguei n. comb. habitus, modified from Delamare Deboutteville (1951a).

FIG. 3. — Trogolaphysa judithnajtae n. sp.: A, adult hind claw complex with three inner teeth, pretarsal setae normal, present on both sides, but not illustrated; B, adult hind claw complex with four inner teeth; C, normal adult mucro; D, variant adult mucro. Scale bars: 0.05 mm.

FIG. 2. — Trogolaphysa judithnajtae n. sp.: A, dorsal chaetotaxy of head, arrow points at macrochaeta that may be present or absent; B, eye patch detail; C, labial triangle; D, dorsal chaetotaxy of mesothorax, insets show variation in p3 complex; E, dorsal chaetotaxy of abdomen 4; F, latero-dorsal chaetotaxy of abdomen 4 in a different individual. Scale bars: A, D-F, 0.1 mm; B, 0.05 mm; C, 0.03 mm.