Dizygomyza perryi

Family

Subfamily

Genus

Subgenus

Species

Dizygomyza perryi Warrington, 2024

Mine

Unknown.

Host Plants

• Unknown

Confusion Species

N/A.

Recording Grade

*

National Status

Unknown.

Puparium

Unknown.

Adult

Head: Frons 2.4x width of eye, not projecting above eye in profile; orbits broad, 0.5x width of frons, projecting above level of eye in profile, more so at level of lunule; 2 strong reclinate ors on left side, 1 on left (upper missing, no socket present), 2 incurved ori (on right side, lower noticeably stronger than upper, on left side lower much weaker); ocellar setae very long, reaching beyond upper ori; orbital setulae almost completely absent, 2-3 setulae present between lower ors and lower ori; lunule broad, slightly lower than semi-circle; third antennal segment enlarged, rounded (not axe-shaped), fractionally longer than deep (almost equal), distinctly covered with dense whitish pubescence, hairs equal to or slightly less than basal diameter of arista; arista pubescent, thickened in basal 2/5 on right side, thickened in basal third on left side; eye 3.25x higher than jowls including parafacial; palpi normal, with two stiff setae at tip.
Mesonotum: 3+1 strong dorsocentral (dc) bristles (presutural dc missing on left side but socket present), acrostichals (acr) in 4-6 (often sparse) irregular rows, reducing to two rows at level of first dc; prescutellar setae (prsc) present but weak, only slightly stronger than acr; no caudal projection present on epandrium.
Wing: Hyaline, all veins dark brown, length 2.3 mm; costa extending to vein M₁₊₂; costal sections (2:3:4) 100:34:17; ultimate section of vein M₄ equal to penultimate; r-m cross-vein situated at mid-point of discal cell; distal section of vein R₄₊₅ possesses two sensillum.
Colour: Frons mat, blackish-brown, faintly yellowish-brown between orbits and ocellar triangle; orbits mat, greyish-black, inner margin narrowly faintly yellowish-brown, more so in-between lower ors and vti; lunule mat, silvery-grey; jowls brownish; all antennal segments black; palpi and face black; mesonotum blackish-grey, weakly shining, more mat when viewed from front; mesopleura black, upper and hind margin yellow; legs all black, only fore-knees distinctly yellow, knees on p2 very faintly yellowish-brown, knees on p3 black; abdomen black, tergites narrowly bordered yellow; squama greyish-white, margin yellow, fringe bright yellow (some hairs darker, dull yellow-brown); wing base and haltere yellow.
Male genitalia: Epandrium hemispherical, covered in strong, long setae; surstylus with 3 strong spines and 4 setae on inner margin; process of subepandrial sclerite long, narrow, basally curved with distinct subapical hook; cercus clavate, with long (0.4x length of cercus), single, seta at tip; phallus distinctive: phallophorus not elongated ventrally, dorsally fused to right arm of basiphallus; basiphallus with left arm large, in two parts: upper falcate, with upper margin strongly sclerotised, lower margin less so, lower part of left arm of basiphallus distinctly bifurcate distally with ventral projection extending past medial point of hypophallus, right arm of basiphallus long (almost as long as left sclerite of hypophallus), thin, relatively straight and almost perpendicular to mesophallus (when viewed from right side); hypophallus large with right sclerite absent and left sclerite strongly sclerotised, long, thickened basally (somewhat tapering distally), slightly arching with membranous distal ‘pouch’ distinctly sclerotised on ventral margin; paraphallus membranous, indistinct, with sclerotised tips appearing as two sharp points; mesophallus long and evenly straight (slightly concave section basally), straight section 3x longer than wide, with distinct swelling at distal end, particularly below; distiphallus almost equal in length to mesophallus, dark, entirely divided into two distinctly sinuate tubules, distal arch almost as high as proximal arch, distal ‘funnels’ as deep as long; ejaculatory apodeme short and broad (similar to C. (D.) brisiaca [Nowakowski 1973 – Fig. 158J]), rounded dorsally.
Female: Unknown.