Lycoriella canningsi, Menzel & Vilkamaa, 2021

Menzel, Frank & Vilkamaa, Pekka, 2021, New species and records of Lycoriella Frey (Diptera, Sciaridae) from the Holarctic region, Zootaxa 5072 (6), pp. 501-530 : 505-507

Lycoriella canningsi sp. n.

Figs 2A , 3C

Material studied. Holotype male. CANADA, British Columbia, Lake Kinbasket, Canoe Reach of Kinbasket Reservoir, Malaise trap, 21.VI.2010, Cooper Beauchesne and Associates Ltd. (in RBCM).

Description. Male. Head. Face and antenna concolorous brown, maxillary palpus pale brown. Eye bridge 3 facets wide. Face with 12 long and short setae. Clypeus with 1 seta. Maxillary palpus with 3 segments; segment lengths not measurable in the specimen studied; 1 st segment with 3 setae and dorsal pit with sensilla; surface of antennal flagellomeres smooth, body of 4 th antennal flagellomere 1.75x as long as wide, neck shorter than wide, longest setae slightly shorter than width of flagellomere. Thorax. Brown, setae pale. Anterior pronotum with 4 setae. Proepisternum with 2 setae. Scutellum with 2 long and some short setae. Wing. Hyaline. Length 1.5 mm. Width/length 0.50. Anal lobe small. Veins distinct, except for stM. c/w 0.55. R1/R 0.65. bM shorter than r-m, stCuA shortest. stM subequal to fork of M. bM and r-m non-setose. Halter yellow. Legs. Pale brown, coxae yellow; coxal setae pale. Fore tibial organ forming very small patch of few setae in demarcated depression. Fore tibial spur longer than apical width of tibia. Abdomen. Pale brown; setae pale and long. Hypopygium ( Fig. 2A ). Pale brown, like abdomen. Intergonocoxal area with distinct broad lobe with apical setae. Gonocoxa longer than gonostylus, with rather short and sparse vestiture. Gonostylus ( Fig. 3C ) wide, narrowed apically, impressed medially, with dense apical setosity, with long and narrow apical tooth, with 4 long and straight medial megasetae in apical fourth; with indistinct whip-lash seta in middle of gonostylus. Tegmen slightly sclerotized, wider than long, with small area of aedeagal teeth. Aedeagal apodeme rather strong.

BIN. Unknown.

Discussion. Lycoriella canningsi sp. n. belongs to the group of Lycoriella which share short and broad wings, a small fore tibial organ, a large Trichocoelina -like and medially impressed gonostylus, four conical basomedially directed and slightly curved megasetae as well as a large, broad and roundish intergonocoxal lobe of with strong setae.

Among these species, Lycoriella canningsi most resembles the Palaearctic L. latilobata Menzel & Mohrig, 2000 because of its pale body setosity, the eye bridge with two to three rows of facets, relatively densely setose antennal flagellomeres with only few sensilla, a similarly long 4 th flagellomere and a fairly long maxillary palpus. Lycoriella canningsi differs from L. latilobata in its wider gonostylus, a shorter whip-lash seta basally on the medial margin of the gonostylus, a longer apical tooth placed at the very apex of the gonostylus, the broad and short tegmen, stronger gonostylar megasetae, and a longer intergonocoxal lobe with weaker setae (all setae are curved and not spine-like). By comparison, L. latilobata has a distinctly narrower gonostylus, a longer whip-lash seta, the apical tooth placed subapically on the medial side of the gonostylus, the tegmen much longer and conical, shorter and narrower gonostylar megasetae and a shorter, a bow-shaped intergonocoxal lobe with apical margin with dense, straight, spine-like setae.

Etymology. The species is named after the Canadian entomologist Robert A. Cannings, formerly the Curator of Entomology in the Royal British Columbia Museum, Victoria, BC.

Figures

FIGURE 2. Hypopygium, ventral. A. Lycoriella canningsi sp. n. (holotype). B. L. excavata sp. n. (holotype). Scale 0.1 mm.

FIGURE 3. Gonostylus, ventral. A. Lycoriella ampla sp. n. (holotype). B. L. barkalovi sp. n. C. L. canningsi sp. n. (holotype). D. L. excavata sp. n. (holotype). Scale 0.1 mm.