Haematopota fenestralis Oldroyd, 1952

Mugasa, Claire M., Villinger, Jandouwe, Gitau, Joseph, Ndungu, Nelly, Marc Ciosi, & Masiga, Daniel, 2018, Morphological re-description and molecular identification of Tabanidae (Diptera) in East Africa, ZooKeys 769, pp. 117-144 : 117

Haematopota fenestralis Oldroyd, 1952 Fig. 3K

Location.

Shimba Hills, Zunguluka, Kenya,

Flies in this species are smaller than H. duttoni Newstead, Dutton & Todd (1907) described above.

Descriprion.

Head. Head black, broader than long (Suppl. material 2: Figure S11A). Eyes black with colourful bands and separated by wide, more or less square greyish black frons. Frons with short black hair and few white hairs. Frontal callus black and glossy, broad but shorter than and not as convex as in previously described species. Sub callus brownish black and velvety, continuous with frontal callus. Small oval pale black spot medially above frontal callus close to vertex. Antennae brownish grey (tan) with three segments typical of Haematopota ; scape long and narrower than in H. duttoni with black hair, second is globular with anterior thorn-like projection with black hair, flagellum narrow and brown towards base, black annulations with black hair. Second segment of palpus grey with black and white hair, labellum brownish black (Fig. 4F ; Suppl. material 2: Figure S11B).

Thorax. Thorax greyish brown with clear thin brown medial stripe extending to posterior end of mesonotum, and brown sublateral stripes, slightly wider than median stripe but only reach half way mesonotum. Posterior mesonotum ashy grey, scutellum greyish brown. Halteres yellowish white medially but progressively darken into brown at periphery. Stalks of halteres yellowish white. Fore tibia slightly swollen (wide) anteriorly with yellowish transverse band towards proximal end with white hair. Fore femur dark brown with dark brown hair and few white hairs. Fore tarsus dark brown with dark brown hair. Hind tibia with two transverse bands, proximally and medially; hind femur dark brown with black and white long hair; hind tibia dark brown with black hair and white bands with white hair. Middle leg looks like hind leg. No hair tufts at postalar tufts. Wing with brown and mottled patterns descriptive of genus. Thick double white streak running across wing apex from anterior, as indicated in black oval in Suppl. material 2: Figure S11C.

Abdomen. Narrow abdomen tapers slightly posteriorly (Suppl. material 2: Figure S11A). Dark brown and even darker on segments 4 to 7 with black and white hair. Ventral abdominal surface ashy grey with white hair; thick shiny brown patch with fine black hair medially on all segments.

Figures

Figure 3. Whole tabanid flies. A Ancala fasciata, discal cell (dc) B Tabanus thoracinus, discal cell (dc), haltare (ht) C Tabanus donaldsoni, distinct R 4 appendix (px) D Tabanus taeniola, median stripe (ms), parafacial hair (pf), antennae (at), labellum (lbl), palpus (lp) E Tabanus taeniola variatus, medial triangles (mt), peri-median bands (pm) F Tabanus gratus, haltares (ht), comma shaped shades (cm) G Tabanus guineensis H Atylotus nigromaculatus, eyes with thin black horizontal line (hl) I Atylotus diurnus, haltares (ht), wing with indistinct appendix (px) J Haematopota duttoni K Haematopota fenestralis, double white streak (ds) L Chrysops distinctipennis, hair tufts (hf), bifurcating band (bf).

Figure 4. Key morphological features of sampled tabanid species. A Ancala fasciata B Tabanus donaldsoni green eyes (in fresh sample) C Tabanus donaldsoni, wing with distinct R 4 appendix (px), indistict hair tuft (hf) D Atylotus nigromaculatus, wing with short, clear appendix on R 4 E Haematopota duttoni, mottled wing with a right angled white thick line (in black circle) between vein A 1 and the wing margin, the R 4 has a long appendix F Haematopota fenestralis, shiny black callus on frons, eyes have bright coloured bands G Chrysops brucei, lateral view of head showing the antenna, black mouth parts and brown legs (partial).