no. 2089. NOTES ON NEOTROPICAL DRAGON FLIES— WILLIAMSON. 



605 



Comparison of characters of species in the genus Metaleptobasis — Continued. 



bovilla, male. 



brysonima, 

 male. 



mauritia, male. 



manicaria, male. 



sp., female. 



Nasus. 



Black; on ante- 

 rior edge on 

 either side is a 

 shining black 

 ocellus -like 

 spot. 



Similar to bo- 

 villa. 



Dark gray, almost 

 black, with 

 shining black 

 spots as in bovil- 

 la. 



Dark and dull 

 apple green, 

 almost black 

 in some cases, 

 with shining 

 spots as in bo- 

 villa. 



Black. 



Frons in 

 front. 



Obscure pale 

 clay yellow. 



Dark, almost 

 black, with 

 a blue green 

 cast. 



Obscure dull blue 

 green. 



Obscure dull 

 blue green, 

 very dark in 

 some cases. 



Dark, almost 

 black, with a 

 blue green 

 cast. 



Frons 

 above. 



Black. 



Black. 



Black, or nearly 

 so. 



Dark brown, : 

 most black. 



Black. 



Vertex. 



Black, the merest 

 trace of the 

 orange line be- 

 tween the lat- 

 eral ocellus and 

 the antenna de- 

 scribed by Cal- 

 vert (Biol. Cent. 

 Amer., p. 386). 



Black. 



Black, obscurely 

 patterned with 

 slightly paler.* 



Black or nearly 

 so and ob- 

 scurely pat- 

 terned with 

 slightly paler. 1 



Black, with a 

 dull orange, 

 short, wide 

 stripe near 

 each eye, each 

 stripe parallel 

 with the rear of 

 the head in dor- 

 sal view. 



Gena. 



Pale dull blue 

 green, a round 

 dark spot oppo- 

 site anterior 

 face of frons. 



Blue green, 

 with a nar- 

 row dark 

 bar across 

 the gena op- 

 posite the 

 anterior face 

 of frons. 



Blue green, a 

 round black 

 spot, not quite 

 reaching the eye, 

 opposite ante- 

 rior face of frons. 



Same as w,au- 

 ritia, but dark 

 spot smaller. 



Pale blue green, 

 unspotted. 



Rear of 

 head. 



Pale flesh. 



Pale flesh. 



Pale flesh. 



Pale flesh. 



Pale flesh. 



Antenna . . 



Black, second 

 joint pale ex- 

 cept extreme 

 apex. 



Same as bovil- 

 la. 



Same as bovilla. 



Same as bovilla. 



Same, but apical 

 half or third of 

 second seg- 

 ment black. 



Prothorax . 



Flesh colored, 

 darker and red- 

 der above. 



Same as bovil- 

 la. 



Same as bovilla, 

 posterior lobe 

 sometimes black 



Same as bovilla. 



Same as bovilla. 



Thorax Middorsal stripe Same as bo- Middorsal stripe Middorsal stripe Color of bovilla 



metallic green, villa. black with buta metallic green, butnomiddor- 



about 0.5 mm. trace, if any, of about 0.25mm. sal stripe; on 



wide; mesepis- metallic green, wide or less, outer half of 



ternum brown about 0.5 mm. otherwise like mesepisternum 



ocher, passing wide; mesepister- mauritia. and on suture 



ventrally and num pale brown, between mes- 



posteriorly into passing ventral- epimeron and 



pale flesh color ly and posterior- metepisternum 



on metepime- ly into pale flesh is stippling in 



ron. color on metepi- dark reddish 



brown, form- 

 ing 2 diffuse 

 bands. 



1 Possibly the darkest areas on the vertex are, on either side a band running from the lateral ocellus to the 

 eye, its outer end posterior to the antenna; and a shorter band about half as long, behind the first band, 

 from which it is separated by about its own width, this shorter band reaching the eye; the shorter band is 

 subparallel to the longer band anterior to it and is slightly curved, the convex side anterior, while in 1 he 

 longer band the convex side is posterior. These areas or bands are not always discernible. In addit ion :i 

 less defined dark band may sometimes bo detected which extends from the inner end of tho shorter band, 

 above described, to the eye, this band being parallel to the outline of the roar of the head in dorsal view. 



