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<title>Cosmiomorpha</title>
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<h1>Key to species of subgenus <i>Cosmiomorpha</i> based on male external characters</h1> 
<p>1. Clypeus subtrapezoidal in ventral view (Figs. 24, 26, 30); apical margin raised, depressed in middle.................... 2</p>
<p>- Clypeus subrectangular in ventral view (Figs. 22, 28, 32, 34); apical margin raised, slightly depressed in middle or straight.. 4</p>
<p>2. Dorsal surface smooth, shiny, usually sparsely clad with short scales (Figs. 66 –67, 126, 128– 129); protibia comparatively slim, the deflexed tooth short and small (Figs. 39–40, 52– 53). Distributed in Taiwan...................... <i>C</i>. <i>sauteri</i> Bourgoin</p> 
<p>- Dorsal surface dull, setose, seldom smooth (Figs. 63–65, 73, 89, 91–93, 143); protibia comparatively wide, and the deflexed tooth evedent (Figs. 37–38, 44, 49–51, 57). Distributed in continental Asia....................................... 3</p>
<p>3. Tarsi and tibiae black (Fig. 143–144).................................................. <i>C</i>. <i>nigripedis</i>
<b>new species</b></p>

<p>- Tarsi and tibiae orange red; apical portions of each tarsomere dark brown or black (Figs. 89–93)......... <i>C</i>. <i>decliva</i> Janson</p> 
<p>4. Tarsi orange red; the deflexed tooth short, blunt (Fig. 60, 149–150).............................. <i>C</i>. <i>cheni</i>
<b>new species</b></p>

<p>- Tarsi black or dark brown; the deflexed tooth long (Figs. 48, 54–56, 58 – 59, 76–80, 133– 139, 145–146)................. 5</p>
<p>5. Tip of the deflexed tooth rounded (Figs. 58–59)........................................ <i>C</i>. <i>maolanensis</i>
<b>new species</b></p>

<p>- Tip of the deflexed tooth sharp (Figs. 48, 54–56)............................................................. 6</p>
<p>6. Protibia wide, gradually expanded apically; scales on dorsal surface large (Figs. 41–43, 68– 72)....... <i>C</i>. <i>fortis</i>
<b>new species</b></p>

<p>- Protibia slim or almost of equal width, scales on dorsal surface small (Figs. 35–36, 61– 62)........... <i>C</i>. <i>modesta</i> Saunders</p> 
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