umgodikulula are the lack of sculpture on the tergum of fourth abdominal segment
(second gastral segment), which is mostly smooth and glossy, and the horizontal propodeal spiracle.
We examined whether the chelae on the first pair of pereopods and the pleuron of the second abdominal segment
increase linearly with body size in males and females of T.
fountaineae the black on the second abdominal segment
does not extend all the way around the segment, but is limited to the top half of the segment only.
-- Tergal sclerotization of segments 1-6 extending onto lateral regions to include the spiracles, spiracles located marginally and posterior to the antecostal sutures; hair-like sensilla present, more numerous ventrally; abdominal segments
7 and 8 completely scleroterized, each with well-defined lateral series of hair-like natatory sensilla, spiracles on segment seven below natatory series; abdominal segment
8 length 1.55-1.95 mm ([bar.x] = 1.81 [+ or -] 0.13 mm); siphon length 0.43-0.62 mm ( = 0.56 [+ or -] 0.06 mm); enlarged tracheae visible posteriorly.
Thorax: Wing reaching second abdominal segment
; foreleg, midleg, and hind leg reaching fourth abdominal segment
Body blackish brown; the living adults have red hypodermal pigment which combined with the blackish cuticle results in dark abdominal segments
with a red band in the posterior edge; the same red bands are observed at the end of the head, the prothorax and the metathorax; in addition, in weakly sclerotized individuals the tube is reddish; brown yellowish setae; middle part of the fore tibiae and tarsi brown yellowish; lateral margin of fore tibia dark brown; antennal segments dark brown except segment III brownish yellow and pale brown distally; fore wings slightly shaded around margins and in a medial longitudinal line (Fig.
less rugose, almost smooth, with a continuous fine medial carina.
VII simple, produced neither dorsally or ventrally; terminalia strongly protruding, bill-shaped, formed by a composite dorsal plate and a pair of lateroventral plates.
The juvenile septum (sp) between the thoracic segment and first abdominal segment
is fully formed at this stage.
7 black; a long brown-red transverse bar; separated by narrow black line from double white line on posterior margin (interrupted at dorsum).
1A), on the mouthparts, ventrally at the union of the cranium and prothorax, and on the seventh abdominal segment
. A single larva had one colony on the dorsum of the seventh abdominal segment
Elytral and posterior wing tecae closely appressed, curved ventrally around body; elytral tecae extending to middle of abdominal segment
IV; posterior wing tecae extending to middle of abdominal segment
Ventral view: Round top of head with a prominent medial dorsoventral depression; labial palpus a small triangle posterior to labrum; labrum bilobed; pilifers not prominent; maxillary palpus absent; forefemur visible, prothoracic legs (foreleg) three-quarters length of forewing, mesothoracic leg (midleg) extends entire length of forewing and antenna extending about seven-eighths length of forewing; hind tarsus extends just beyond length of forewing; abdominal segments
5 and 6 with vestigial prolegs; abdominal segment
8-10 with genital orifice anteriorly, anus posteriorly with lateral conical depressions.
Paraclypei slightly shorter than clypeus, apically acute, lateral margins slightly sinuate with distinct tooth on anterior portion; length of antennal segment I 1.0 mm, II 2.4 mm, III 2.2 mm, IV 2.2 mm, V 1.8mm, antennal formula I < V < IV = III < II; labium reaching to middle of 6th abdominal segment
, length of labial segments I 4.2 mm, II 4.8 mm, III 4.8 mm, IV 4.0 mm, labial formula IV < I < II = III; bucculae anteriorly rounded, completely enclose basal segment of labium.
Thorax: upper and lower frontal horn absent, a pair of lower facial papillae (one setose and one bare) each side of midline, three lateral papillae (one setose and two bare) each side of midline, prothoracic spiracle cylindrical, 0.9 mm (Figure 10); wing reaching fourth abdominal segment
; first and third pairs of legs reaching seventh abdominal segment
, second pair reaching eighth.