Halictus erythrurus appositus Rayment, T. 1939. Bees from the high lands of New South Wales and Victoria. Australian Zoologist 9: 263–294 [281].
Type data: Holotype ANIC ?, White Swamp, NSW.
Halictus erythrurus appositus Rayment, 1939: 281.
Homalictus appositus.- Michener, 1965: 179.
Lasioglossum (Chilalictus) appositum.- Walker, 1986: 167.
Diagnosis. Most like L. veronicae and L. victoriae but with dull mesoscutum surface. Female with head and mesoscutum metallic green, latter suffused with gold, metasoma red-brown except posterior half of T1 dark green, frons striate, mesoscutum shining, densely punctate along midline and laterad of parapsidal line, mesially and in parapsidal areas openly to closely punctate, dorsal surface of propodeum ruguloso-striolate, defined by posterolateral carinae set well below dorsal level, fore tibial spur fan-shaped, metasomal tomentum absent. Male with head metallic green/blue, mesoscutum dark green, metasoma dark brown, antennae moderately short (FL 1.08 x UID), AS4:AS2+3=1, sternal vestiture sparse, forewings with 2nd r-m weaker than 1st r-m.
Remarks. Lasioglossum appositum and L. immaculatum are the only metallic species with a predominantly northern distribution. L. appositum is the common Lasioglossum s.l. species collected throughout most of northern Queensland, including Cape York Peninsula. Several males displayed macrocephalic development.
