Ascodipteron sanmingensis, Sun & Ding & Yan & Pape & Zhang, 2021

Sun, Haoran, Ding, Liang, Yan, Liping, Pape, Thomas & Zhang, Dong, 2021, Ascodipteron sanmingensis sp. nov., a new bat fly (Hippoboscidae: streblid grade) from Fujian, China, Biodiversity Data Journal 9, pp. 64558-64558 : 64558

Ascodipteron sanmingensis sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Liang Ding; individualID: BFU-2230; individualCount: 1; sex: female; lifeStage: adult; Taxon : scientificName: Ascodipteron sanmingensis; phylum: Arthropoda ; class: Insecta ; order: Diptera ; family: Streblidae ; genus: Ascodipteron ; specificEpithet: sanmingensis; Location : continent: South China; country: China; countryCode: CN; stateProvince: Fujian; county: Sanming ; locality: Meilie District ; verbatimLocality: Qunying Second Village ; verbatimElevation: 195 m; verbatimCoordinates: 26°16 ’30.33’’ N 117°36 ’49.02’’ E; georeferenceProtocol: GPS; Event : samplingProtocol: Entire neosomes were removed with forceps from the bats; eventDate: Oct-2020; Record Level : language: en; institutionID: the Museum of Beijing Forestry University , Beijing, China; institutionCode: MBFU; collectionCode: Insects ; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: Liang Ding; individualID: BFU-2225, BFU-2226, BFU-2227, BFU-2228, BFU-2229,; individualCount: 5; sex: female; lifeStage: adult; Taxon : scientificName: Ascodipteron sanmingensis; phylum: Arthropoda ; class: Insecta ; order: Diptera ; family: Streblidae ; genus: Ascodipteron ; specificEpithet: sanmingensis; Location : continent: South China ; country: China ; countryCode: CN; stateProvince: Fujian; county: Sanming ; locality: Meilie District ; verbatimLocality: Qunying Second Village ; verbatimElevation: 195 m; verbatimCoordinates: 26°16 '30.33'' N 117°36 '49.02'' E; georeferenceProtocol: GPS; Identification : dateIdentified: 2020; Event : samplingProtocol: Entire neosomes were removed with forceps from the bats; eventDate: Oct-2020; Record Level : language: en; institutionID: the Museum of Beijing Forestry University , Beijing, China ; institutionCode: MBFU; collectionCode: Insects ; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: Liang Ding & Hao-Ran Sun; individualID: BFU-2221, BFU-2222; individualCount: 2; sex: female; lifeStage: adult; Taxon: scientificName: Ascodipteron sanmingensis; phylum: Arthropoda; class: Insecta; order: Diptera; family: Streblidae; genus: Ascodipteron; specificEpithet: sanmingensis; Location: continent: South China ; country: China ; countryCode: CN; stateProvince: Fujian; county: Sanming; locality: Meilie District ; verbatimLocality: Qunying Second Village; verbatimElevation: 195 m; verbatimCoordinates: 26°16 '30.33'' N 117°36 '49.02'' E; georeferenceProtocol: GPS; Identification : dateIdentified: 2020; Event : samplingProtocol: Entire neosomes were removed with forceps from the bats; eventDate: 11/15/2020; Record Level : language: en; institutionID: the Museum of Beijing Forestry University , Beijing, China ; institutionCode: MBFU; collectionCode: Insects ; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: recordedBy: Liang Ding & Hao-Ran Sun; individualID: BFU-2223, BFU-2224; individualCount: 2; sex: female; lifeStage: adult; Taxon: scientificName: Ascodipteron sanmingensis; phylum: Arthropoda; class: Insecta; order: Diptera; family: Streblidae; genus: Ascodipteron; specificEpithet: sanmingensis; Location: continent: South China ; country: China ; countryCode: CN; stateProvince: Fujian; county: Sanming; locality: Meilie District ; verbatimLocality: Qunying Second Village; verbatimElevation: 195 m; verbatimCoordinates: 26°16 '30.33'' N 117°36 '49.02'' E; georeferenceProtocol: GPS; Identification : dateIdentified: 2020; Event : samplingProtocol: Entire neosomes were removed with forceps from the bats; eventDate: 11/17/2020; Record Level : language: en; institutionID: the Museum of Beijing Forestry University , Beijing, China ; institutionCode: MBFU; collectionCode: Insects ; basisOfRecord: PreservedSpecimen

Description

Female. Head. Labial theca slightly longer than wide (Fig. 2 B,D; Fig. 3 B,C); posterior margin concave dorsally, convex ventrally. Labial theca dorsally with ca. 50＋ pigmented, peg-like, spiniform setae and ventrally with ca. 100＋ similar setae. Peg-like setae identical to those on gena. Gena with ca. 40 peg-like setae on dorsal half; anterior margin convex (Fig. 3 A). Posterior margin of frons trilobed. Arista with multiple fine branches; basal antennal segment with a single long seta. Lateral vertex with convex antero-medial margin; adorned with 30-36 long setae; about twice as long as wide, with a longitudinal fold in the lateral portion of the sclerite (Fig. 4 A). Occipital sclerite triangular (Fig. 2 B).

Thorax (Fig. 2 B,D; Fig. 3 A; Fig. 4 B). Scutum with numerous long setae, especially numerous along posterolateral margin; devoid of setae along mid-line. Mesopleuron with 8-10 short, peg-like spiniform setae anterior to large round spiracle; setae posterior to spiracle of three varieties: 6-7 short, peg-like, spiniform setae (ventral); 6-8 longer, sharp, spiniform setae (medial); 8-10 long, slender setae (along posterior margin and dorsal). Pteropleuron with 20-26 short, peg-like, spiniform setae in dorsal half of sclerite; ventral half devoid of setae. Hypopleuron and sternopleuron without setae. Coxa 1 with 12-15 peg-like, spiniform setae and 3 long, slender setae on proximal half. Coxae 2 and 3 each with a cluster of 8-11 long, slender setae. Trochanters 1 and 2 each with 2-3 minute, spiniform setae on anterior apex; 1-2 slender setae on posteroapical margin. Prosternum devoid of setae, mesosternum with 2-3 slender setae, metasternum with 4 short setae and posterolateral margin distinctly concave.

Genital Aperture (Fig. 4 C and D). Five terminal annular rings arranged roughly into rows comprised of different types of setae (abbreviated R1-5, with R1 the proximal and R5 the distal row). R1, R2 and R4 with minute, thick setae; R3 and R5 with long setae. VSS (ventral spiracular setae situated in a ventral, arching row or grouping between spiracles #7) of 19-23 long setae. MSS (medial spiracular setae) arranged in symmetrical groups of 2-3 setae, situated between spiracles #6 and #7. DSS (dorsal spiracular setae) arranged in a single dorsal arching row of 7-8 long setae between spiracles #5. Cercus with 4-6 setae, diameter ca. 43 μm.

Dimensions. Head and thorax: 1671 μm (n = 3, range: 1666-1676 μm); Labial theca, length: 626 μm (n = 2, range: 556-695 μm); width: 511 μm (n = 2, range: 495-526 μm), genital aperture, diameter: 1171 μm (n = 2, range: 1125-1217 μm), neosome, length: 4655 μm.

Male. Unknown.

Diagnosis

Labial theca slightly longer than wide (Fig. 2 B and D; Fig. 3 B and C), R1, R2, R4 as minute, thick setae and R3, R5 as long setae. Most similar to A. phyllorhinae and A. speiserianum , but separable from the former by having 50＋ spiniform setae dorsally on the labial theca and a lateral fold on the lateral vertex and from the latter by the setose lateral vertex (Fig. 4 A).

Etymology

The new species is named after its type locality Sanming.

Distribution

Oriental - China (Fujian).

Biology

Ascodipteron sanmingensis sp. nov. is embedded at the base of an ear or on the lower jaw area of Hipposideros armiger (Fig. 1 A-D). The neosomes are not inserted perpendicular to the skin, but at a slight angle.

Molecular results

The genetic distance between Ascodipteron sanmingensis sp. nov. and A. phyllorhinae is 7.75% and between A. sanmingensis sp. nov. and an unidentified A. sp. is 11.86% (Table 1 ). The Cytb sequence generated in this study was deposited in GenBank (Accession: MW822598).

Figures

Figure 1. Ascodipteron sanmingensis sp. nov. and its host Hipposideros armiger. A. Neosomes protruding from the lower jaw area of host. B. Neosomes protruding from the base of an ear of host. C-D. Neosomes embedded in host tissue. E-F. Whole neosomes freshly extracted from host (head and thorax fully withdrawn).

Figure 2. Ascodipteron sanmingensis sp. nov., ex. H. armiger, China. A. Whole neosome (head and thorax fully withdrawn, the arrow indicates the direction of the head) (BFU- 2227, paratype). B-D. Head and thorax (BFU- 2228, paratype); dorsal view (B), lateral view (C) and ventral view (D). Abbreviations: ant, antenna; fr, frons; lv, lateral vertex; and ocp, occipital sclerite. Scale bars: A = 500 μm; B-C = 200 μm.

Figure 3. Ascodipteron sanmingensis sp. nov., ex. H. armiger, China (BFU- 2228, paratype). A. Thorax, lateral dorsal view. B. Labial theca, dorsal view. C. Labial theca, ventral view. Abbreviations: a. s., anterior thoracic spiracle; cx 1, coxa 1; g, gena; hp, hypopleuron; lv, lateral vertex; ms, mesopleuron; pt, pteropleuron; s. w., stump of wing; ster, sternopleuron; and t. 1, trochanter 1. Scale bars: A-C = 200 μm.

Figure 4. Ascodipteron sanmingensis sp. nov., ex. H. armiger, China. A. Frons and lateral vertex (BFU- 2221, paratype). B. Thorax, ventral view (BFU- 2221, paratype). C. Abdomen, posterior view (BFU- 2223, paratype). D. Five terminal annular rows of setae (BFU- 2223, paratype). Abbreviations: sp 5 - sp 7, spiracles 5 - 7; DSS, dorsal spiracular setae; MSS, medial spiracular setae; VSS, ventral spiracular setae; anus, anus; cerc, cercus; vo, vaginal orifice; R 1 - 5, abdominal setae arranged roughly into annular rows comprised of variable types of setae, R 1 the proximal and R 5 the distal row. Scale bars: A-B = 100 μm; C-D = 200 μm.