Lonchaea, Fallen, 1820

Macgowan, Iain, 2018, Definition of the Lonchaea polyhamata species-group (Diptera, Lonchaeidae) with a description of new species, Zootaxa 4446 (3), pp. 325-342 : 340-341

publication ID

https://doi.org/ 10.11646/zootaxa.4446.3.2

publication LSID

lsid:zoobank.org:pub:D7E5F511-6A3B-4837-B64C-DF09DE59B87E

DOI

https://doi.org/10.5281/zenodo.5979491

persistent identifier

https://treatment.plazi.org/id/03B587C6-2B71-C82E-FF23-F9FD67DDF295

treatment provided by

Plazi

scientific name

Lonchaea
status

 

Key Afrotropical Lonchaea View in CoL males with two katepisternal setae

1 Male genitalia: parameres long and blade-like ( Fig.4 View FIGURES 2–4 ), hypandrium with a long posterior apodeme reaching to near base of cerci ( Fig. 1 View FIGURE 1 )...( L. polyhamata View in CoL group) ...................................................................... 2

- Male genitalia without blade-like parameres, hypandrium without a long posterior apodeme.......................... 8

2 Parameres with outer apical margin smooth ( Figs. 24 View FIGURES 21–24 & 28 View FIGURES 25–28 ).................................................... 3

- Parameres with spicules on outer apical margin ( Figs. 4 View FIGURES 2–4 , 7 View FIGURES 5–8 , 12 View FIGURES 9–12 , 16 View FIGURES 13–16 & 19 View FIGURES 17–20 ).......................................... 4

3 Only one paramere with a strong medial tooth ( Fig. 24 View FIGURES 21–24 ). Posterior process of surstylus bearing large two claw- like projections and a smaller medial one ( Figs. 21–23 View FIGURES 21–24 )................................................... polyhamata McAlpine View in CoL

- Both parameres with a strong medial tooth ( Figs. 25 & 28 View FIGURES 25–28 ). Posterior process of surstylus with three ventrally directed projections ( Figs 25–27 View FIGURES 25–28 )....................................................................... teratosa McAlpine View in CoL

4 Parameres broad ( Figs. 4 View FIGURES 2–4 & 16 View FIGURES 13–16 ).......................................................................... 5

- Parameres long and narrow ( Figs. 7 View FIGURES 5–8 , 12 View FIGURES 9–12 , & 19).............................................................. 6

5 Parameres apically with numerous processes, spicules and setulae ( Fig. 4 View FIGURES 2–4 ). In lateral view posterior process of surstylus with two long curved posterior projections ( Figs. 2 & 3 View FIGURES 2–4 )................................................ dama View in CoL sp. nov.

- Parameres apically with only a single large, blunt medial process, spicules limited to a small outer area ( Fig. 16 View FIGURES 13–16 ). In lateral view posterior process of surstylus with a single posterior tooth-like projection ( Figs 13–15 View FIGURES 13–16 )................ taita View in CoL sp. nov. 6 Paramere almost straight, 2 rather small medial processes, numerous spicules near apex on outer margin ( Fig 12 View FIGURES 9–12 ). Posterior process of surstylus with three similar sized medially directed projections ( Figs. 9–11 View FIGURES 9–12 )................... njombe View in CoL sp. nov.

- Apices of parameres curved outwards at apex, medial processes larger and more obvious ( Figs. 7 View FIGURES 5–8 & 19 View FIGURES 17–20 )................. 7

7 Apex of paramere smoothly curved outwards, with one large and one smaller medial process ( Fig. 7 View FIGURES 5–8 ). Posterior process of surstylus with a three similar sized projections ( Figs. 5 & 6 View FIGURES 5–8 )........................................... mbeya View in CoL sp. nov.

- Apex of paramere curved outwards at almost right angles, one large and several smaller medial projections ( Figs. 19 & 20 View FIGURES 17–20 ) In lateral view posterior process of surstylus with two rather blunt projections and a long, curved medial projection ( Figs. 17 & 18 View FIGURES 17–20 )...................................................................................... zomba View in CoL sp. nov.

8 Eyes covered with long white hairs. Orbital plate bearing setulae. Last apparent abdominal tergum elongate. Male genitalia; surstylus with a very large, angled posterior projection, a large serrated spike arising from base of cerci ( Figs. 29–31 View FIGURES 29–32 ).............................................................................................. aberdare View in CoL sp. nov.

- Eyes bare, orbital plates bare. Male terminalia not as above.................................................... 9

9 Epandrium elongated into a large rounded ventral process.Ventral lobe of surstylus bearing a black stump-like process at medial base, left twice as large as that on right; apices of these processes irregularly serrate ( Figs 39–41)...................................................................................................... dichaeta McAlpine View in CoL

- Epandrium without a large rounded ventral process.......................................................... 10

10 Epandrium in lateral view more rectangular with a large rounded postero-ventral process. Medial surface of surstylus with 2 small posterior teeth. ( Figs. 33–36 View FIGURES 33–36 ).......................................................... kleynbergi View in CoL sp. nov.

- Epandrium almost circular in lateral view, without ant processes. Medial margins of surstyli with a single, large slightly curved process ( Figs. 37–38 View FIGURES 37–38 ).................................................................... muhavura View in CoL sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Lonchaeidae

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