244 



XOVITATES ZOOLOGICAE XXI. 19U. 



Genotype: rosenhergi Roths. (189T, as Tijphloceras): 



Besides the type, we have another species, which we describe below. Both these 

 species differ from TypMoceras poppei in some additional details not mentioned in 

 the generic diagnosis. For instance, the bristles on the thorax and abdomen are 

 much less numerous; the hindcoxa bears only a few bristles on the inside j 

 there are no small bristles in front of the row on the abdominal sternites ; the 

 thorax, abdomen and tibiae are not reticulated; the tibiae have more dorsal bristles 

 than in T. poppei ; the fourth hindtarsal segment is much shorter ; etc. 



4. Neotyphloceras crassispina spec. nov. (text-figs. 6, 7, 8). 

 cJ ? . All the specimens of Seotyphloceras which we have from Ecuador belong 

 to N. rosenhergi Roths. (1897), while the example.s from Peru, Bolivia and Chile 

 contained in our collection belong to a different species, which we propose to call 



Fig. 6. — Neotyphloceras crassispina. 



crassispina on account of the very strong sisines present in the S at the apex of 

 the exopodite of the clasper and at the apex of the ninth sternite. The differences 

 between rosenhergi and crassispina are so important that we cannot have any 

 doubt about the specific distinctness of the two insects, although the species appear 

 to represent each other geographically. 



The frons is strongly rounded (text-fig. 0, ? ); it does not bear a tubercle, uor is 

 it strongly incrassate from the oral corner upwards as in N. rosenhergi. The anterior 

 row of bristles of the frons contains six bristles. The bristles on the occiput are 

 arranged in four rows, as in rosetihergi, but are not so numerous as in that species. 

 The genal spines as well as the genal process are more pointed than in rosenhergi. 



The abdominal tergites have no apical spines in crassispina, while in rosenhergi 

 the second and third tergites bear one, rarely two, dorsal spines on each side. 



The hiudfemur has a row of five to seven bristles on the inner snrface. The 

 hindtibia bears five or six bristles on the inner surface, thirteen to sixteen lateral 



