CERASOMMATIDIIDAE, BRETHES, 1925

Arriaga-Varela, Emmanuel, Tomaszewska, Wioletta, Szawaryn, Karol, Robertson, James, Seidel, Matthias, Ślipiński, Adam & Fikáček, Martin, 2023, The resurrection of Cerasommatidiidae, an enigmatic group of coccinelloid beetles (Coleoptera: Coccinelloidea) based on molecular and morphological evidence, Zoological Journal of the Linnean Society 197 (4), pp. 1078-1115 : 1113

publication ID	https://doi.org/ 10.1093/zoolinnean/zlac082
publication LSID	lsid:zoobank.org:pub:99842C3A-879F-4552-96B7-204D79CF3EDF
DOI	https://doi.org/10.5281/zenodo.7814203
persistent identifier	https://treatment.plazi.org/id/03C2CE00-FFDA-FFB8-3FC7-0BD2FAC3448E
treatment provided by	Plazi
scientific name	CERASOMMATIDIIDAE
status

Treatment

KEY TO GENERA AND SPECIES OF CERASOMMATIDIIDAE

1. Trochanters flattened, projected to cover tibio-tarsal joint in repose ( Figs 4E, 4 View Figure 4 , 5H View Figure 5 , 7K View Figure 7 , 9F View Figure 9 , 10F View Figure 10 , 11F View Figure 11 , 18E View Figure 18 ); vestiture of dorsal body surface uniform (tiny decumbent hairs (often missing)) ( Figs 4B, C View Figure 4 , 5C, G View Figure 5 , 18C, F View Figure 18 ) or moderately long suberect setae ( Figs 9E View Figure 9 , 10C View Figure 10 , 11B, D View Figure 11 ) ....................................................................................... 2

- Trochanters normal, not flattened or produced to cover tibio-tarsal joint in repose ( Figs 13D View Figure 13 , 15D, G View Figure 15 , 16D View Figure 16 ); vestiture of dorsal surface of body composed of minuscule decumbent hairs and sparse long erect setae ( Figs 15F View Figure 15 , 16B View Figure 16 ) [ Puerto Rico, Venezuela] ........................................................................................................ Yamuy …4

2. Pronotum with lateral and anterior borders simply margined ( Figs 4B View Figure 4 , 5C View Figure 5 , 18C View Figure 18 ); dorsal surface with tiny decumbent hairs (often missing) ( Figs 4B, C View Figure 4 , 5C, G View Figure 5 , 18C, F View Figure 18 )............................................................................... 3

- Pronotum with lateral margins bordered with an internal subparallel carinae ( Figs 9C View Figure 9 , 10C View Figure 10 , 11B View Figure 11 ); anterior margin of pronotum with crenulate bordering line ( Figs 9C View Figure 9 , 10C View Figure 10 , 11B View Figure 11 ); dorsal surface with moderately long suberect pubescence (often missing) ( Figs 6A–F View Figure 6 , 9E View Figure 9 , 10C View Figure 10 )…. .......................................................... Karumbe .... 5

3. Abdominal ventrite 1 with complete semicircular postcoxal lines ( Figs 3D View Figure 3 , 4G View Figure 4 , 5H View Figure 5 ); prosternal process with long lateral carinae reaching anterior third of prosternum, without median carina ( Fig. 5D View Figure 5 ); Brazil....................................................................................................................................... Cerasommatidia …7

- Abdominal ventrite 1 without postcoxal lines, only with anterior bordering margin thickened posterior to coxae and widening laterally ( Fig. 18G View Figure 18 ); prosternum with raised, single, median carina, ( Fig. 18D View Figure 18 ); Madagascar.......................................................................................................................... MahaƲelo madagasus

4. Pronotum with lateral margins bordered with an internal carina ( Figs 12C, D View Figure 12 , 16B View Figure 16 ); anterior margins of metaventrite and abdominal ventrite 1 with small longitudinal carina below each coxa ( Fig 16D, F View Figure 16 ); Puerto Rico............................................................................................................................................ Yamuy marginatus

- Pronotum with lateral margins only narrowly bordered with simple bordering line, with internal carina short, weakly marked, present only basally ( Fig. 15C View Figure 15 ); anterior margins of metaventrite and abdominal ventrite 1 without longitudinal carinae beyond coxae ( Figs 13D View Figure 13 , 15G, H View Figure 15 ); Puerto Rico, Venezuela.................................................................................................................................... Yamuy constratus

5. Body more than 1.40 mm long; metaventrite with setiferous punctures inserted in wide foveate impressions ( Fig. 9F View Figure 9 ); terminal labial palpomere elongate and acuminate, 2.2 times as long as wide ( Fig. 9B View Figure 9 ); Brazil........................................................................................................................................... Karumbe brethesi

- Body less than 1.00 mm long; metaventrite with simple setiferous punctures ( Figs 10E View Figure 10 , 11F View Figure 11 ); terminal labial palpomere short and apically rounded, 1.2–1.4 times as long as wide ( Figs 7D View Figure 7 , 10A View Figure 10 ); Venezuela, Grenada..6

6. Prosternal process narrower, about 0.67 of width of procoxal diameter ( Fig. 11C View Figure 11 ); pronotum with posterolateral indentation short and rectangular ( Fig. 11B View Figure 11 ); Venezuela.......................................... Karumbe pakaluki

- Prosternal process wider, about 0.90 of width of procoxal diameter ( Fig. 10B View Figure 10 ); pronotum with postero-lateral indentation large and oblique ( Fig. 10C View Figure 10 ); Grenada..................................................................... Karumbe geiseri

7. Pronotum 2.0 times as wide as long, with bordering line at anterior margin complete; body size about 1.7 mm ..................................................................................................................................... Cerasommatidia rotundata

- Pronotum at least 2.2 times as wide as long, with bordering line at anterior margin vanishing medially; body size 1.1–1.4 mm ...................................................................................................................................................... 8

8. Body 1.15 mm long; posterior margin of pronotum narrowly bordered at least medially ( Fig. 5C View Figure 5 ); aedeagus as in Fig. 3E View Figure 3 .................................................................................................................... Cerasommatidia plaumanni

- Body 1.4 mm long; posterior margin of pronotum not bordered ( Fig. 4B View Figure 4 ); aedeagus as in Fig. 3F View Figure 3 ........................................................................................................................................... Cerasommatidia arroaei