SCIARA. 125 



20. Colour more pale yellowish pallescens, sp. n., 



[p. 137. 



Colour deeper, more brownish yellow. . . . fulvescem, sp. n., 



21 (fl). Stripes narrow, median, with a row of [p. 138. 

 stiff hairs on each. Length barely 



2 mm. to tip of ovipositor setUineaUt, sp. n., 



(i). Stripes very broad, black, occupjdug- [p. 138. 

 nearly the entire dorsum, except 



narrowly on shoulders 22. 



(c). Stripes in two pairs, each pair joined on 



front margin, appearing like inverted [p. 139. 



black U's. Length barelv 1 mm. . . radimm, sp. n., 



[p. 139. 



22. Length li mm latelineata, sp. n., 



[p. 140. 



Length 3i mm unj^ostur, sp. u., 



[p.m. 



23. Smaller species, slender, dark brown .... seytnenUcorms, sp. n., 

 Larger species, much more robust, [p. 141. 



brownish yellow coynpactu, sp. n., 



24. Thorax with three obvious but not con- 



spicuous black stripes near the centre, [p. 142. 



all furnished with rows of pale hairs . . hirtUincata, sp. n., 

 Thorax unstriped 25. 



25. Wings extending much beyond tip of 



abdomen ^^• 



Wings only normally longer than abdomen 27. _ [p. 143. 



26. Tip of antennffi distinctly white niveiapicalis, sp. n., 



[p. 143. 

 Tip of antennae concolorous longipennis, sp. n., 



27. Scutellar bristly hairs yellow flaviseta, sp.n., p. 144. 



Scutellar bristlv hairs Ijlack 28. 



[p. 145. 



28. Thorax shining black nittdit/iora.r, .sp. n., 



Thorax dull black -'9. 



29. The 3rd longitudinal vein ends nearly at 



the tip of the wing, and lies almost 



parallel with the costa 30. 



The 3rd longitudinal vein normal 31. 



30. Smaller species (l|-2 mm.) : coxae brown- [p. 145. 



ish vellow or pale yellow longitudmahs, sp. n., 



Larger species (3| mm.) : coxae distinctly [p. 146. 



reddish yellow ." rujico.m, sp. u., 



[p. 146. 



31. Pleurfe wholly bright pale yellow flavipleura. sp. n.. 



Pleurae bluish grey or blackish 32. 



[p. 147. 



32. The Ist longitudinal vein short evanescem, sp. n., 



The Ist longitudinal vein nearly reaches 



fork of 4th vein paraUela, sp. n., 



[p. 147. 



