Pseudoglochina

Alternative Taxonomy: 

As a subgenus of Limonia or Dicranomyia:
Limonia (Pseudoglochina)
Dicranomyia (Pseudoglochina)

Description: 

Alexander, C.P. 1921. New species of crane-flies from North Queensland (Tipulidae, Diptera). Canadian Entomologist 53: 208.

Summary: 

Pseudoglochina was erected as a subgenus of Dicranomyia based on the cunciform anal lobe of the wing and the near to partial fusion of the basal sengment of A2 with the wing margin prior to the anterior wing chord and the absence of cell dm. The genus is quite similar to Thrypticomia in possessing a petiolate wing base and fusion of A2 to the wing margin for a short distance. The two are separated by the elongate pre-arcular cell of Pseudoglochina the causes the misalignment of the basal wing chord, the pre-arcular cell of Thrypticomyia being reduced with the basal wing chord elements in alingnment.

Images: 
Diagnosis: 

Head: Anterior vertex suppressed, not strongly produced. Rostrum shorter than or subequal to remaining head. Maxillary palpus length less than that of the remaining head; palpomeres subequal. Antennae: 14 articles; flagellomeres oval to cylindrical.

Dicranomyia (Pseudoglochina) sp. wing
Figure 1. Wing of Dicranomyia (Pseudoglochina) angustapicalis (Alexander) (re-drawn from Alexander 1931;scale bar = 1.0 mm). 

Wing: Subhylane to suffused with darker, patterning of wing uncommon; wings cunciform, anal angle of wing lacking. Wing venation: Sc1 removed from Sc2, Sc1 2-3 times as long as Sc2, both elements ending near the origin of Rs; R1+2 in near alingment with R2; two branches of Rs (R3, R4+5) attaining wing margin; two Medial veins (M1+2, M3) attaining wing margin; cell dm absent; CuA crossvein entering M near the split of M; two Cubital veins (CuA1, CuA2) attaining wing margin; two Anal veins (A1, A2) attaining wing margin, vein A2 at times basally fused with wing margin resulting in only one Anal vein (A1) attaining wing margin.

Dicranomyia (Pseudoglochina) sp. hypopygium
Figure 2. Male hypopygium of Pseudoglochina angustapicalis (Alexander) (scale bar = 1.0 mm).

Male hypopygium: 9th tergite (9t) and sternite (9s) divided, separated by lateral division. Mesoventral lobe of gonocoxite present. Gonostylus bifid; doral gonostyle a heavily sclerotized, falcate rod; ventral gonostyle bulbous, with a short basal rostral prolongation equipped with one or two rostral spines. Aedeagus simple with one or two terminal openings. Proctriger simple, without modification.

Distribution: 

Pseudoglochina contains 25 species that are strongly distributed throughout the Oriental and Australian/Oceanic regions. While the distributions of Oriental species are widespread, they are largely based on single or limited collection events, therefore the true distribution throughout this region is poorly known. Apart from the Oriental species, a single species, Pseudoglochina pamela (Alexander, 1960), is known from the Afrotropical Region and one species, Pseudoglochina bryophila (Alexander, 1934), is known from the Eastern Paleactic Region (China).

Larval Habitat: 

The larval habits of this subgenus are unknown.