Bruchomyiinae, Alexander, 1920

Wagner, Rüdiger, 2017, Synopsis of extinct Bruchomyiinae (Diptera, Psychodidae) from Burmese, Baltic and Dominican amber, with descriptions of new genera and species, Zootaxa 4320 (1), pp. 100-120 : 109-110

Key to males of Baltic amber Bruchomyiinae

1. Hypandrium and gonocoxites fused to form a cross sclerite, gonostyli reduced in size or absent. Hoffeinsodes gen. nov. …4

- Hypandrium and gonocoxites not fused, gonostyli conspicuous, not reduced................ Palaeosycorax Meunier…2

2. Gonocoxites more than 2x longer than wide, gonostyli about 1.5x longer than gonocoxites, tip of gonostyli broadly bent....................................................................................... P. tertiariae Meunier

- Gonocoxites subquadrate, gonostyli about as long as gonocoxites.............................................. 3

3. Gonostyli S-shaped in lateral view.................................................... P. inexpectatus (Wagner)

- Gonostyli bilobed in lateral view, morphologically dorsal part elongate, straight................ P. molophilinus Edwards

4. Epandrium oval cup-shaped, with posterolateral lobes........................................................ 5

- Epandrium with paired digitate posterolateral lobes of different length...........................................7

5. Epandrium like a flat plate, lobes with apices directed laterally................................ H. hoffeinsi (Wagner)

- Epandrium bowl-like, lobes with apices directed posteriorly................................................... 6

6. Gonostyli with one setose and one ‘triangular’ lobe, both of similar length............................ H. bifida sp. n.

- Gonostyli with one glabrous lobe and one setose lobe; glabrous lobe longer than setose lobe.............. H. obtusa sp. n.

7. Cross sclerite without gonostyli............................................................. H. reducta sp. n.

- Cross sclerite with gonostyli............................................................................ 8

8. Posterolateral lobes of epandrium elongate, clearly projecting beyond apex of proctiger.............. H. longicauda sp. n.

- Posterolateral lobes of epandrium basally subquadrate, apical part as long as basal part, curved slightly dorsad, with smooth, darkly colored apex, gonostyli with sinuous apical margin...................................... .. H. cubicula sp. n.