Polletomyia roraimense Bravo & Araújo, 2023
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publication ID |
https://doi.org/10.12741/ebrasilis.v16.e1063 |
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publication LSID |
lsid:zoobank.org:pub:7DF62861-51DD-42B8-A189-0ECFFEAD5B09 |
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persistent identifier |
https://treatment.plazi.org/id/03814417-FFE1-FFAD-FD2E-F830FBCBF99E |
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treatment provided by |
Felipe |
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scientific name |
Polletomyia roraimense Bravo & Araújo |
| status |
sp. nov. |
Polletomyia roraimense Bravo & Araújo View in CoL , sp. nov.
urn:lsid:zoobank.org:act:281CC419-95D2-4BF1-A770-2B18A392D009
( Figures 1-3 View Figure 1 View Figure 2 )
Diagnosis. Male and female with eye bridge slightly downward inclined; anal lobe with long setae present in male wing, absent in wing female; hypandrium with pair of long, lateral branches that are projected posteriorly and apically corrugated; apical margin of female hypopygium concave with setose lobe biggest than apical margin.
Male description. Head: slightly wider than long; vertex little pronounced; eyes contiguous; eye bridge with three
rows of facets slightly downward inclined ( Figures 1A, B View Figure 1 ). Front with setae alveoli patch wider than long, narrow, with lower margin bilobed and upper margin straight, close to the inferior margin of eyes ( Figure 1A View Figure 1 ). Clypeus with setae alveoli patch subrectangular. Antenna ( Figure 1C View Figure 1 ): scape subcylindrical, almost 1.2x longer than wide; pedicel spherical almost half of the scape; basal flagellomeres 1-3 ovate, the remaining flagellomeres fusiform, decreasing in size from base to apex, 14 th flagellomere with long apiculus ( Figure 1C, D View Figure 1 ); flagellomere 1 without ascoids, flagellomeres 2-3 with one ascoid, flagellomeres 4-11 with two ascoids; flagellomers 12-14 without ascoids; ascoids 2/3 the length of flagellomere ( Figure 1E View Figure 1 ). Labellum narrow, longer than wide. Palpus extending to flagellomere 6; relative segments of the palpus proportion:1.0:1.6:2.0:2.1; segment of the palpus 4 annulated ( Figure 1F View Figure 1 ). Epipharynx with six distal spiniform setae, two big setae dorsally located to the four small setae ( Figure 1G View Figure 1 ). Thorax: group of small setae, probably with sensory function, in the dorsal area of anepimeron ( Figure 1H View Figure 1 ); mid coxa with mesal anterior protuberance covered with pores ( Figure 1I View Figure 1 ). Wing: 2.5 x longer than wide; R 3 ending at the same level of M 1; M 2 complete; anal lobe, with long setae ( Figures 1J, K View Figure 1 ). Male terminalia: hypandrium band-like, arched, with a pair of long lateral projections, sinuous, enlarged apically and has sclerotized bands ( Figures 2A, B View Figure 2 ); ejaculatory apodeme subellipsoid ( Figures 2A, B View Figure 2 ), narrow laterally ( Figure 2F View Figure 2 ); aedeagus with four narrow sclerites, inner sclerites filiform, ending in acute apex, smallest than outer sclerites; outer sclerites band-like, sinuous, enlarged proximally ( Figures 2A, B View Figure 2 ); gonocoxites longer than wide dorsally with setae alveoli laterally ( Figures 2A, B View Figure 2 ); gonocoxites subcylindrical laterally and covered with setae alveoli distally ( Figure 2F View Figure 2 ); gonostyli slightly sinuous, setose; apex of gonostyli ending in an
Description of the second species of Polletomyia Curler, 2020 ( Diptera :… Bravo & Araújo (2023)
A B C
internal small hook; apex of gonostyli without stout, conical setae ( Figures 2A, B View Figure 2 ); gonocoxal apodemes sub-rectangular ( Figures 2A, B View Figure 2 ); epandrium sub-rectangular with a band of setae alveoli distally and a pair of foramina below the band of setae alveoli ( Figure 2D View Figure 2 ); epandrium articulated ventrally with hypoproct ( Figure 2F View Figure 2 ); epiproct short with micropilosity ( Figure 2D View Figure 2 ); hypoproct with rounded apex with microtrichia ( Figure 2E View Figure 2 ); subepandrial sclerite long, plate-like, little sclerotized ( Figure 2E View Figure 2 ); cerci long, digitiform, slightly curved, setose with one filiform tenaculum.
Female. Head as in male. Wing without setose anal lobe ( Figure 3A). Terminalia: distal margin of hypopygium concave, with setose lobe, concave, biggest than the apical margin ( Figures 3B, C); cerci elongated, tapering to apex ( Figure 3C).
Type Material. holotype male Brazil, Roraima, Cacaulândia , 200 km SSE of Porto Velho, 10°18’S 62°52’W, 200 masl, 25.v- 06.vi. 1998. L.W. Quate col. ( MZFS, 3197) GoogleMaps .
Paratypes. 18 males and 17 females, same data as holotype ( MZFS, males: 3176, 3178-3191, 3194-3196; females: 2570- 2581, 3174, 3175, 3192, 3193) GoogleMaps
Etymology. the specific name ‘ roraimense ’ is a noun in apposition, referring to the gentilic used for people born in the state of Roraima.
Comments. The description of the second species of Polletomyia from the western Amazon has allowed for an improved diagnosis of the genus, which was originally based on its type species. Until now, the genus has been found to be endemic to the Amazonian Forest. The most striking feature that differentiates the new species from P. subulata is the presence of a setose lobe in the anal region of the male wing. The females are distinguished by having an apical setose lobe in the female hypopygium of P. roraimense sp. nov., which is absent in P. subulata .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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