il ' ii - Northern Research Station - USDA Forest Service

Larva 2. Swelling apparent on both leaf
" surfaces (figs. 1-2) .......................... A. tumidifolium
Third instar (figs. 25-30). White. Body shape ovoid. Swelling apparent only on lower leaf surface
Integument completely-or mostly covered with conical, (figs. 3-4) ............................................. A. subfolium
pointed verrucae. Antenna about twice as long as wide. 3. :Unevenly hemispheroid and warty on upper leaf
Spatula short, broad, variously shaped. Anus surface, craterlike on lower surface A
caudoventral, the terminal segment in dorsoventral view (figs. 5-6) .............................................. A. coronata "
appearing cleft. Papillar pattern as forLasiopteridi and Either circular and fiat or with one or more, smooth,
Lasiopterini (Gagn6 1989a, 1994) with, when discemable elongate, conical, projections on upper leaf surface,
(reduced and usually not visible in A. tumidifolium and A. not craterlike on lower surface (figs. 7-8) ............. 4
subfolium) _,the lateral papillae reduced to three on each 4. Circular and fiat on upper leaf surface, nearly evenly _
side, two of them setose on prothorax, all setose on hemispherical andusually covered with tiny pustules
meso- and metathorax (fig. 26); thoracic sternal papillae below (fig. 7) ........................................ A. pustulata
without or with very short setae on prothorax, setose on With one or more smooth, elongate, conical, projecmes0-
and metathorax; terminal segment with only two tions on upper leaf surface, circular and fiat below
papi!lae, both setose. (fig. 8) ............................................... A. tuberculata
! j
Etymology KEY TO SPECIES OF Actilasioptera
Actilasioptera (feminine gender) combines the Greek The pupa and larva of the Javanese A.falcaria are
akte, meaning seashore, with Lasioptera, the genus in unknown; available specimens of adults of that species
whichmost Lasiopterini are now placed, are indistinguishable from those ofA. tumidifolium. A.
pustulata and A. tuberculata are indistinguishable except
Remarks in their galls.
The new genus belongs to the tribe Lasiopterini with 1. Adult with second palpal segment segment smaller
which it sharesthe following apomorphies: the gynecoid than first or absent; paramere of male genitalia
male antennae, the greatly shortened and nearly straight glabrous apically (figs. 33-35); ovipositor bilaterally
R5 wing vein, the reduced number of four lateral setae on flattened, broad and curved in lateral view (figs. 13eachside
of the larval thorax, and the two dorsolateral 14); pupal vertex conical or strongly convex (figs.
groups of enlarged setae posterior to the female eighth 17-20); larval setae barely longer than wide when
tergite. Most female Lasiopterini have hooked setae on apparent (fig. 25) ............................................. ,..... 2
the cerci, but these are not present in Actilasioptera from Adult second palpal segment larger than first (fig. 9);
which they are presumably lost due to the great modifica- paramere of male genitalia setulose apically (fig.
tion of the ovipositor. 12); ovipositor narrowing abruptly at base into long,
cylindrical tube (fig. 15-16); pupal vertex weakly
- Apomorphies of Actilasioptera are: the narrow, elongate convex and produced ventrally between antennal
parameres and aedeagus, the reduction of the palpi to one bases (figs. 21-24); larval setae all many times
or two segments, the modification of the ovipositor into a longer than wide (figs. 27-28) ............................... 3
piercing organ, the developed pupal vertex, the reduction 2. Male hypoproct bilobed (fig. 33); pupal vertex conical
in size of the larval spatula, and the reduction of the (unknown for A.falcaria) (figs. 17-18); larval
larval thoracic lateral papillae to three pairs from four on spatula much wider on posterior half than anteriorly,
eachside and of the larval terminal papillae to one pair with two or more weak teeth anteriorly (unknowqt
' instead of four. for A.falcaria) (fig. 25) ....... A. tumidifolium and A.
' falc_ria
24
KEYTO GALLS OF Actilasioptera ON GREY Male hypoproct simple (fig. 36); pupal vertex convex
MANGROVE IN EASTERN AUSTRALIA (figs. 19-20); larval spatula parallel sided, with two
large anterior teeth (fig. 29) ................. A. subfolium
"1. Soft, simple leaf swelling, 10 or more mm in diam- 3. Pupal antennal bases rounded, pupal face without
eter, with texture similar to that of normal leaf (figs. projections (figs. 21-22); larval spatula more or less
1-4) ........................................................................ 2 parallel sided, the middle pair of 4 anterior teeth
Hard, ridged, warty, or tuberculate leaf growths less smaller (fig. 27) .................................... A. coronata
than 5 mm diameter (figs. 5-8) ................................ 3 Pupal antennal base pointed apicoventrally, pupal face
with slight projections (figs. 23-24); larval spatula
indented laterally, all 4 anterior teeth subequal (fig.
. 30) .......................... A. pustulata and A. tuberculata