TABLE 1. Characters of female genitalia, male genitalia, and general characters. Non-genital characters with sexual dimorphism are shown in bold.

Character Female Male
Length (head to abdomen tip) 2850 µm
longer than male
2625 µm
Head
Antenna filiform
upwards directed cilia organized in tiny whorls
1.6 mm, 1/2 of wing length
ca. 30 flagellomers (left)
ca. 30 µm
thinner than in male
scape and pedicel hardly thicker than flagellomers
filiform
upwards directed cilia organized in tiny whorls
2.3 mm, 2/3 of wing length
34 flagellomers (left)
ca. 50 µm

scape and pedicel hardly thicker than flagellomers

Eyes globular, diameter 195 µm

ca. 18 ommatidia across the eye
hairs around dorsal side of eyes

globular, diameter 295 µm

larger than in female
ca. 18 ommatidia across the eye
hairs around dorsal side of eyes

Proboscis short (ca. 30 µm), thin, ribbed short (ca. 30 µm), thin, ribbed

galeae separated

Maxillary palps 5 segments, long, bent 5 segments, long, bent

twice as thick as in female

ribbed

Labial palps with lateral bristles with lateral bristles
Vertex with erected hair-like scales with erected hair-like scales
Abdomen
Width 655 µm maximum width

(abdominal segment 3)

wider than male,

in A2-4

590 µm maximum width

(abdominal segment 3)

Wings
Length 3605 µm 3280 µm
Wing / body length 1.26 mm 1.25 mm
Shape lanceolate with acute wing tip lanceolate with acute wing tip
Frenulum / retinaculum 492 µm, retinaculum not visible both not visible
Venation front wing:

S, R1-5, M1-3, Cu1, Cu2, 1A+2A

all veins separate,

large cell, subdivided

by two weak M veins within

hind wing:

visible only partly,

heteroneurous

seemingly both the same,

but mostly hidden behind

hind wing,

and behind abdomen, respectively

Scales wings tightly covered with scales

no cilia, but long scales at the

rim of the wings

wings tightly covered with scales

no cilia, but long scales at the

rim of the wings

Abdomen
Scales scales dorsal, lateral, and at rims of A3-5

tiny hairs ventral

no scales

tiny hairs ventral

Legs
Length hind legs not preserved

fore and middle legs similar to male ones

hind legs about the size

of body with wings

Hairs bundle of hairs near trochanter of fore legs bundle of hairs near trochanter of fore legs
Epiphysis present present
Spur formula 0-2-? 0-2-4
Scales some at the outer side of the tibiae some at the outer side of the tibiae
Tarsi five tarsomeres, each with 2-3 small spines distally

pretarsi with a pair of minuscule claws

five tarsomeres, each with 2-3 small spines distally

pretarsi with a pair of minuscule claws

Genitalias
  conical papillae anales with fine hairs, outermost 130 µm

of it exposed

large clasping apparatus

(not the valvae)

built from sternit and tergit of A5, tergit being longer,

both ending in each two lateral thorns such forming a hole for the female abdomen;

inside valvae (?) partly visible