1a |
Males
|
2 |
1b |
Females |
9 |
|
2a(1a) |
a. Dorsum of Ab9 not extended posteriorly as a roof-like ledge overhanging base of Ab10 |
Agrypnia deflata (Milne) |
b. Basal segment of inferior appendages elongate and narrow, terminated with a short, heavily sclerotized, tapering process directed ventrad |
c. Apical segment of inferior appendages, when present, slender and finger-Iike, much shorter than basal segment |
2b |
a. Dorsum of Ab9 extended posteriorly as roof-like ledge overhanging base of Ab10 in some species |
3 |
b.Inferior appendages varied, but not as above |
c.In species with the basal segment of the inferior appendages narrow and elongate, similar to above, the apical processes are of different type and directed dorsad, with a freely aniculated apical segment always present |
|
3a(2b) |
Apical segment of inferior appendages broad and flattened, its mesal surface with a dense vestiture of short dark setae |
4 |
3b |
Apical segment of inferior appendages long, thin and generally finger-Iike, and without a dense vestiture of short, dark setae |
5 |
|
4a(3a) |
Ab10 with each posterolateral corner extended into elongate process bearing several stout setae also: In dorsal view, dorsum of Ab9 with a broad mesal excision |
Agrypnia glacialis Hagen |
4b |
Ab10 simple, without processes or stout setae also: Basal segment of inferior appendages with two apical processes |
Agrypnia improba (Hagen) |
|
5a(4a) |
Basal segment of inferior appendages extended beyond the point of articulation of the terminal segment into two slender, pointed processes |
6 |
5b |
Basal segment of inferior appendages extended beyond point of articulation of the terminal segment as one stout process |
9 |
|
6a(5a) |
Basal segment of inferior appendages with a prominent, finger-Iike ventral process near its base |
Agrypnia vestita (Walker) |
6b |
Basal segment of inferior appendages lacking finger-Iike process near its base |
7 |
|
7a(6b) |
a. Ab10 lacking stout, spine-like setae
|
Agrypnia straminea Hagen |
b.Inferior appendages with basal segment broad and scoop-like at base |
7b |
a. Ab10 with stout, spine-like setae |
8 |
b. Inferior appendages with its basal segment narrow throughout |
|
8a(7b) |
Ab10 with median dorsal area thickly set with many short, spine-Iike setae in addition to long, stout setae at its apex |
Agrypnia macdunnoughi (Milne) |
8b |
Ab10 lacking a thick median dorsal patch of short setae, but with only 2-3 pairs of stout spine-Iike setae, arising from dorsal surface near its apex |
Agrypnia colorata (Hagen) |
|
9a(1b) |
a. Each half of vulval lobe separate and not combined as single, flattened median lobe, rather straight-sided and strap-like, its ventral keel broad and not flattened in ventral aspect |
Agrypnia deflata (Milne) |
b. Median stalk deep and steep-sided to apex, with apical lobes arising abruptly from dorsal, more or less horizontal, surface of median stalk |
also: Ab10 with lateral and mesal lobes not well developed, appearing as low rounded prominences, mesal lobes separated by broad, shallow median notch |
9b |
a. Vulval lobe flattened, unified, more or less ovoid or circular in outline, posterior margin excised |
10 |
b. Median stalk tapered in depth towards apex, vulval lobe smoothly confluent with stalk |
|
10a(9b) |
a. Fore wings with moderate to heavy coating of setae, color pattern in most species of dark greyish-brown reticulations over a lighter background, somewhat less intense in certain species |
11 |
b. Tibiae and tarsi of first two pairs of legs with alternating bands of light and dark brown |
c. Antennal segments, particularly near base, banded with light and dark brown |
10b |
a. Fore wings with very light coating of setae, membrane yellowish-brown in most species, sometimes with some light brownish reticulations, streaks or blotches, in certain species with silvery markings, but usually the fore wings overall are rather shiny and transparent |
14 |
b. Tibiae and tarsi uniform light yellowish-brown |
c. Antennal segments uniform light brown |
|
11a(10a) |
Vulval lobe and median stalk enlarged and thickened, base of the median stalk with prominently rounded lateral expansions |
Agrypnia vestita (Walker) |
11b |
Vulval lobe and median stalk not greatly thickened |
12 |
|
12a(11b) |
In ventral view, vulval lobe broadly ovoid and rather flat, its posterior margin with two small notches, one on each side of median truncate flap |
Agrypnia macdunnoughi (Milne) |
12b |
In ventral view, vulval lobe not broadly ovoid, posterior margin with single, rather broad median notch, occasionally with short median extension |
13 |
|
13a(12b) |
Posterior margin of Ab10 more uniform, mesal lobes not developed at all, lateral lobes short |
Agrypnia colorata (Hagen) |
13b |
Posterior margin of Ab10 extended into well-developed mesal and lateral lobes |
Agrypnia improba (Hagen) |
also: Vulval lobe quadrate in ventral view, its length at least as great as its width |
|
14a(10b) |
a. Ab10 with lateral lobes developed into finger-like processes, its ventral portions broad and heavily sclerotized |
Agrypnia straminea Hagen |
b. Mesal lobes of Ab10 also well developed, and separated from lateral lobes by deep excision |
also: Median stalk of vulval lobe broader and not strongly constricted in ventral view, usually without long setae, and a median ridge not apparent |
14b |
a. Ab10 with lateral lobes not like stout finger-like processes, but moderately developed, somewhat flattened lobes |
Agrypnia glacialis Hagen |
b. Mesal lobes of Ab10 only slightly developed, and separated from the lateral lobes by only a shallow emargination |
also: In ventral view, sclerotized hood overhanging the genital opening with rounded, bulging lateral margins |