ENTOMOLOGICAL NEWS. [Juty* ' I2 



thirds length is a stout dorsal tooth on the inner (mesial) margin. In 

 profile view (Fig. 5) each appendage at its base is almost half as high 

 as the hind margin of 10 but contracts its height by one half on the 

 ventral side of the proximal fifth; at one-half length is a strong tuber- 

 cular ventral tooth directed ventrad, distad to this tooth the ventral 

 edge is concave; the fourth sixth of the appendage's length on its 

 dorsal edge is occupied by a stout tooth directed dorsad and caudad ; 

 from this tooth the thickness of the appendage gradually decreases 

 to the apex which is obtuse and bent very slightly downward (ventrad). 

 Viewed from below, each appendage has a ventral longitudinal carina 

 in its proximal sixth and again in its distal f half. 



Inferior appendage shining blackish brown, its hairs fewer and 

 shorter than those of the superiors. Viewed in profile (Figs. 5, 8), it 

 does not quite attain the level of the inferior tooth of the superiors ; it 

 is curved strongly dorsad, then cephalad and finally, at its apex, ventrad, 

 decreasing gradually in thickness throughout its length. Viewed from 

 below (Fig. 7), its width decreases from the base; it is divided into two 

 branches from almost the base, the branches closely oppressed 

 throughout and forming between them a deep ventral groove. 



Femora dark brown, those of third legs redder, inner (lower) sur- 

 face of first femora and a distal spot on inner surface of second pale 

 green. Tibiae and tarsi black. 



9 . Differs from the male as follows : Vertex with a deep median 

 longitudinal groove on the posterior wall of which is situated the 

 median ocellus ; as a result, when the head is viewed from in front 

 (Fig. 4), the median ocellus is above the level of the two lateral ocelli, 

 and in dorsal view (Fig. 3) the median ocellus is cqmpletely posterior 

 to the level of the other two. In the male, as in most Gomphinae, and 

 indeed in Odonata generally, the median ocellus is below and at least 

 not posterior to the level of the other two ocelli in these two views 

 respectively (Figs. 2, i). As a further result of the presence of this 

 groove, the transverse ridge on the vertex behind the ocelli is produced 

 in the middle dorsad and caudad as a marked convexity which con- 

 ceals all of the occiput except its hind margin, when the head is 

 viewed from in front. Dorsal surface of the occiput very much 

 reduced antero-posteriorly, its hind margin strongly convex and fringed 

 with dark hairs; posterior surface swollen in the middle, which is 

 not the case in the male, and with a distinct socket on each side ad- 

 joining the compound eye. Front shallowly and widely grooved an- 

 tero-posteriorly in the middle of its superior surface; this feature 

 less marked in the male. 



Mid-dorsal mesothoracic carina pale green ; brown markings of the 

 thorax paler, redder; green antehumeral stripe at mid-height half as 

 wide as the brown mid-dorsal stripe. 



