The Males of Hcmarinc and other Sphinges. 685 



the wanting process of the harpe, but perhaps more 

 correctly as "having a short expansion below this quite at 



its base. 



The mlceagus itself when extended is directed some- 

 what to the right side ; so that we have in a plane, pass- 

 ing from below upwards, from the right side to the left 

 ami obliquely, so that it would in front be to the left, firstly, 

 the long harpe of the right side, then the longest portion 

 of the sheath, then the opening of the fedceagus, and then 

 the shaft of the xdoiagiis, with the terminal spine directed 

 straight backwards, the oblique position of the xdceagus 

 just ''equalling the bend at the orifice made by the 



spine. • 1 • 1 



Honaris croatica has the iBdcectgus almost identical with 

 that described under homhjliformis. The lower (harpe) 

 portion of the valve carries, as in homlnjliformis, only on 

 the right side a long process with round curved shaft and 

 bulbous extremity, represented on the left side by .only a 

 few bristles ; the large flat portion of valve has on the left 

 -side a deep sinuation or notch, opposite the place Avhere 

 the lower piece is, on this side, wanting. 



H. diffi.nis. — Of two prepared specimens of this, the 

 tegumen in both is twisted to the left. I have not noticed 

 tills definitely elsewhere. I am not prepared, however, to 

 feel sure that the appearance is not artificial, due to the 

 greater mobility of one clasp, twisting the basal ring, when 

 both are forced equally apart. The opening of the sheath 

 is definitely on the left, i. e. its prolonged apex is to the 

 right. The cvdceagus is very like that of the other 

 Hemarids, slender, with opening to right and a point 

 beyond directed to the left; this point is very little, if 

 anything, beyond the prolonged opening of the ssdoictgus. 

 The basal bulla of the clasp is more specialized, having a 

 very definite process near its distal extremity, projecting 

 inwards, rounded and very finely spiculated. On the right 

 side is the usual prolongation, rather longer than usual 

 and much more slender ; on the left side it is represented 

 by an extremely short rounded process. Both these pro- 

 cesses are united basally to the fiat portionof the valve, 

 as does not occur in the other species examined, and the 

 valves themselves are broad without emargination, and 

 not very definitely asymmetrical in any way, except m 

 the union with the harpe processes. 



In Faci/ormis the asymmetry would almost escape 



