Laminatilla, Pitts, 2007

LAMINATILLA Pitts, 2007

( Figs 218–255 View FIGURES 218–225 View FIGURES 226–231 View FIGURES 232–243 View FIGURES 244–255 , 287 View FIGURES 286–287 )

Laminatilla Pitts, 2007: 35 . Type species: Odontophotopsis lamellifera Schuster.

Diagnosis. FEMALE. Females of Laminatilla can be recognized by the following combination of characters: mandible with large ventral tooth basally, antennal tubercle smooth and without transverse irregular carinae, mesosoma distinctively longer than wide, mesonotum with numerous distinctly plumose erect setae, T6 convex with pygidial plate absent or weakly defined. MALE. Males of this genus can be immediately recognized by the unique mesosternal processes, which form laterally flattened triangular lamellae.

Included species. Three species: two known from both sexes ( L. bicornigera ( Schuster, 1958) ; L. lamellifera ( Schuster, 1958)) and one known from males only ( L. mixtoensis ( Schuster, 1958)) .

Remarks. This genus was described by Pitts (2007) to include three species that were formerly included in Odontophotopsis . Females of two of these species are associated below, representing the first sex associations for the genus.

Key to Laminatilla

Females

(unknown for L. mixtoensis )

1. Pygidium with pygidial plate defined by distinct lateral carinae ( Fig. 224 View FIGURES 218–225 ); mandible with indistinct tooth along surface near mid-length ( Fig. 222 View FIGURES 218–225 ) ( MEX: BCS)............................................... L. bicornigera ( Schuster, 1958)

- Pygidium convex without pygidial plate, at most with small posterolateral ridges ( Fig. 225 View FIGURES 218–225 ); mandible apically bidentate, without inner tooth near mid-length ( Fig. 223 View FIGURES 218–225 ) ( MEX: SIN, SON; USA: AZ, NM).......... L. lamellifera ( Schuster, 1958)

Males

1. Antennal tubercle armed with small tooth ( Figs 232–234 View FIGURES 232–243 ); mesosternal processes connected anteriorly with transverse ridge ( MEX: BCS)................................................................. L. bicornigera ( Schuster, 1958)

- Antennal tubercle unarmed ( Figs 236–238, 240–242 View FIGURES 232–243 ); mesosternal processes clearly separated........................ 2

2 (1). Mandible with dorsal carina raised near midpoint, mandible distinctly narrowed apically ( Figs 241–242 View FIGURES 232–243 ); mesosternal processes slightly thicker and somewhat conical, not transparent ( Fig. 243 View FIGURES 232–243 ); legs usually brown, concolorous with body ( Figs 230–231 View FIGURES 226–231 ) ( MEX: GRO, PUE)........................................................... L. mixtoensis ( Schuster, 1958)

- Mandible with dorsal carina relatively evenly curving toward apical teeth, not distinctly narrowed pre-apically ( Figs 237–238 View FIGURES 232–243 ); mesosternal processes clearly flattened, nearly transparent ( Fig. 239 View FIGURES 232–243 ); legs pale yellow-brown, lighter than body ( Figs 228–229 View FIGURES 226–231 ) ( MEX: SIN, SON; USA: AZ, NM)............................................... L. lamellifera ( Schuster, 1958)