( 570 ) 



and tlie other behind, the one side bein^^ less flexed downward thiin the other. 

 The absence of tlie anterior short spines from the underside of the first antennal 

 segment may be attributed to an error of omission, and the undue length of the 

 black line which represents the suture of the elytra is doubtless owing to being 

 drawn diagramniatically. 



There are also numerous discrepancies between the specimens of ////■«/• and 

 the figures of ///olossits in the number of bristles ; but here again the figure is 

 decidedly diagrammatical, especially as regards the antennae, thorax, elytra and 

 legs. However, some of the differences may be sexnal, Westwood's figure repre- 

 senting a c? and ours a ?. The roundness of the head, especially the ajiparent 

 absence of slightly projecting basal angles (cf. our fig. I on PI. XII.) and great 

 width of the abdomen, may be explained liy the artificial flattening of the specimen, 

 and the organ of copulation being directed towards the right side instead of towards 

 the left by assuming that the upperside (Westwood's fig. A) was drawn by viewing 

 the transparent specimen from beneath. Westwood erroneously considered this 

 organ an ovipositor and for that reason regarded the individual as a ?, treating 

 the second, immature, specimen as being perhaps the S- The figure of this second 

 specimen differs from the individual we figure at PI. XII. figs. 3 and 4 in the 

 obviously broader head and pruuotum, which may be explained as in the case 

 of the adults. The differences in the hairs can hardly be considered of any weight. 

 Judging from the antennae, e.ff., as drawn by Westwood, it is evident to us that 

 the figures were not meant to be faithful reproductions of all the minute detail. 



Under the skin of our immature specimen the new skiu can be seen, the gular 

 comb and the bristles being quite plain. The new skin bears again rows of bristles 

 at the hind margins of the head and pronotnm, not combs of spines. 



All the evidence jwints to this immature Poh/ctenes being a young example 

 of molossiis, the differences from the adult being such as one would expect to obtain 

 between the imago and an earlier instar. The specimen would have had to undergo 

 at least two more moults before turning into an imago. It is ranch damaged at 

 the legs and many of the bristles are broken. 



For the sake of brevity we abstain from describing those parts which are 

 represented by onr figures. 



Adult female (PI. XII. fig. 1. 2).— The first and second abdominal tergites 

 bear an irregular row of short bristles, the row being doubled or trebled towards 

 the sides ; along the apical margin there is also a row of longer bristles, which 

 about equal in length a segment and are directed obliquely inward. These Ion" 

 bristles are absent from the other tergites, on which the short bristles, however, 

 are more numerous than on the first and second, forming centrally two or three 

 irregular rows. Tergites iii to vi, moreover, have an apical row of bristles separated 

 from tlie others and medianly widely interrupted. The bristles on the under surface 

 of the abdomen are exceedingly abundant, densely covering the whole surface. 



The prosternum resembles that of the iraraatnre specimen (PI. XII. fig. 4), but 

 the hairs are rather more numerous. The meso- and metasterna, whose outline 

 is represented by text-fig. 2 (p. 5G1), are nearly evenly studded with bristles. 



The mid femur bears on the under side four or five and the hind femur 

 three or four long bristles which are about as long as the femur is broad (in a 

 dorso-ventral direction) a short distance from tlie apex. The hind tibia has about 

 ten pseiulojoints. The raid and Iiind tarsi consist of three segments, but the 

 second is halved by a pseudo-joint. The claws are very dissimilar, the large one 



