Three new species of Protearomyia McAlpine, 1962 (Diptera: Lonchaeidae) with a key to males of the Palearctic species
Author
Macgowan, Iain
text
Zootaxa
2014
3796
2
337
348
journal article
45752
10.11646/zootaxa.3796.2.6
2d21c9c2-4bcd-49d9-b389-ffd83bf60453
1175-5326
226223
E82D30A9-9A96-4F53-9F96-5531995EB690
Protearomyia greciana
McAlpine, 1962
Although this species name was introduced by
McAlpine (1962)
, the full description and assignation of
type
material is provided in
McAlpine (1983)
. The description is not repeated here but further notes on the male genitalia which allow comparisons with the other Palearctic
Protearomyia
species are provided.
Male terminalia
(
Figs. 22–26
). Epandrium approximately 1.5x higher than wide, surstyli extending slightly beyond shell of epandrium, no ventral lobe present (
Fig. 22
). Cerci fleshy, bearing irregular longitudinal rows of setulae.
McAlpine (1983)
describes the cerci as being “heavily sclerotized” but this is clearly not the case as can be seen from his own illustration (
McAlpine, 1983, p.897,
Fig.19
) and from specimens examined here. Hypoproct lying anterior to the cerci, dome-shaped, like the top of a skull, in posterior view twice as wide as high, in ventral view two small rounded anteroventrally directed apical processes are apparent emerging from under the cerci, each bearing a strong setulae (
Figs. 23 & 24
). Surstyli on margin and posterior third covered with numerous small denticles (
Fig. 23
), a small process on anterior third bearing a group of longer setulae, no inner teeth present. Phallus (
Fig. 26
) a simple U-shape, apical section weakly sclerotized, usually recurved but this can vary depending on the specimen. Phallic guide (
Fig. 25
) heavily sclerotized, double U-shape, outer processes relatively broad and pointed with slightly serrated inner margins, inner processes thinner and more conspicuously serrated, no ventral processes at base.
Differential diagnosis.
This species along with
P. hermonensis
is one of only two known Palearctic species without a ventral lobe to the epandrium, it is however easily distinguished by the structure of the phallus, phallic guide and by the numerous denticles on the surstyli.