22 THE IMMATURE STATE OF THE ODONATA. 



first ones smaller, civet, the following large compressed, as long as the 

 cents, tin' sharp tip benl backwards; on 10th loss elevated, the tip ex- 

 tending beyond the segment Anal appendages forming together a hairy 

 pyramid , the dorsal median broad at l>ase. as long as the inferiors; laterals 

 sharp, a little shorter; the tip of all blackish. Legs similar to M. trans- 

 versa, hind lemurs reaching 9th segment ; first joint of tarsi very short. 



The nymphse were sent together, and from the same locality as the 

 imago of M. Moorei. 



9. MACROMIA AMPHIGENA. (Supposition.) 

 Selys, Synops. Cordul., p. 101. 



One young dry nympha from Kanagava, Japan, from Mr. Gulick, sent in 

 the -ime lot with the imago. Length, 20 mm. ; breadth, 9 mm. 



The nympha is not in good condition, and had been covered with a black 

 varnish, which cannot be entirely washed off. Head transverse, breadth 

 twice length; forehead very concave, eyes conical, prominent, with a 

 transverse waved suture; vertex small, slightly convex; pyramidal horn 

 narrower at base, a little longer than broad, side margins convex, tip 

 sharp; antennae as long as head, 1st joint very thick, nearly as broad as 

 long. 2d shorter, conical, not half as thick as 1st, seta thinner, joints of equal 

 length ; occiput larger than forehead, behind broadly notched ; sides con- 

 vex below ; on each hind angle an erect tubercle ; behind the vertex an 

 excavation with some fine linear impressions ; the centre of the occiput 

 is the most elevated part, from which lead excavations forward, back- 

 ward, and on both sides; on each side of the centre a low, rounded tu- 

 bercle; mask as in M. transversa. Prothorax similar; wing cases short. 

 covering 4th segment. Abdomen similar to M. transversa ; but lateral spines 

 on segments 8 and 9 very short, those of 9 not exceeding 10th segment; 

 dorsal hooks on 2 to 9, but less pointed, nearly straight; behind appen- 

 dages similar, a little longer, forming a pyramid, less broad than long; 

 ventral side of abdomen and legs as in M. transversa. 



The nympha is similar to those of M. transversa; the most prominent 

 differences arc the form of the head, especially of the occiput, and the short 

 lateral spines of the abdomen. 



