Phytomyza monticola

Family

Subfamily

Genus

Species

Phytomyza monticola Černý, 2007

Mine

N/A. A seedhead feeder. Pupariation occurs within the seedhead.

Host Plants

• Pedicularis

Confusion Species

Phytomyza diversicornis, Phytomyza tenella.

Recording Grade

5

National Status

Unknown.

Puparium

Reddish-brown, posterior spiracles on short, stout projections.

Adult

Taken from Černý (2007) original description.

Head : pale, yellow, ocellar triangle blackish brown, frons, face, facial groove, gena and parafacialia yellow, occiput dark. Outer vertical seta and inner vertical seta on grey background. Antennae dark but scape and pedicel pale, yellow to ochrous brown. Flagellomere black, slightly longer than broad, with distinct short pile. Arista somewhat spindle-like, dilated in basal quarter. Frons broad, about 2.2 times broader than width of eye at level of anterior ocellus, broader than high, slightly narrowing towards lunule. Ocellar triangle and fronto-orbital plates protruding above level of frons in profile. Lunule low. Each fronto-orbital plate broad, about as broad as 0.2 of frontal width, conspicuously overreaching level of frons at bases of antennae in particular. Two orbitals reclinate and slightly reclinate, of same length and thickness. One long frontal seta inclinate. Two additional, very short frontal setulae developed below frontal seta. Distance between inner vertical seta and pper
orbital seta 1.6 times longer than between both orbital setae. Ocellar seta long, reaching level of frontal setae. Orbital setulae sparse, proclinate. Parafacialia broad, broadest in middle, where 0.35 as broad as distance from lower margin of gena to lower margin of eye. Gena unusually broad, reaching 0.4 eye height in posterior part. One stronger vibrissal seta and 3 shorter subvibrissal setae present. Epistoma lacking. Eye bare, almost as broad as high, slightly oblique.
Mesonotum : ash-grey, dull. Posterior part of postpronotal lobes and notopleuron paler, yellowish, anepisternum with brightly yellow upper and hind margin but anepisternal seta and setulae below it inserted in dark area. Scutum with 1+3 dorsocentral setae, these only slightly reduced in length, first dorsocentral seta in front of line of presuturals. Distance between 2nd and 3rd dorsocentrals as well as between 3rd and 4th dorsocentrals 1.4 times longer than that between 1st and 2nd dorsocentrals. Acrostichal setulae sparse, developed from anterior margin of thorax to anterior margin of scutellum, arranged in 2 irregular rows. Several scattered additional acrostichal setulae between levels of 3rd and 4th dorsocentrals, 5-6 presutural and 3 postsutural intraalar
setulae also present. One strong outer postalar seta and one shorter inner postalar seta developed. All usual setae present: 1 postvertical, 1 propleural, 1 postpronotal, 1+1 notopleural, 1 anepisternal, 1 katepisternal, 1 supraalar, 1 presutural, 1 basal scutellar, 1 apical scutellar.
Wing : 2.08 mm long, almost hyaline, veins ochrous brown, base of wing pale yellow. Calypteres with yellow margin, fringe brown. Knob and stem of halteres yellow. Relation of costal sections 2-4 as 1.58 : 0.74 : 1.00. Tip of vein M₁₊₂ in wing apex.
Legs : brownish black, fore coxa yellow in distal half, all knees with yellow ring being as broad as femur. Mid tibiae without lateral setae.