134 ZOROTYPUS SWEZEYI (zORAPTERA) 



body seems slightly more sparse than in hubbardi, the front in some speci- 

 mens showing one or two irregular blackish subcutaneous spots, perhaps 

 vestiges of degenerate eyes which are no longer present, though the spaces 

 the eyes would occupy if developed are generally of a slightly different ap- 

 pearance, when carefully examined, from the rest of the surface of the head, 

 due apparently to a slightly less degree of transparency at those points. 

 Mouth parts not noticeably differing from those of hubbardi as described in 

 the original diagnosis of that species. Antennae consisting of nine segments 

 and essentially as those of hubbardi. 



Pronotum about as in hubbardi but more narrowed posteriorly, due prob- 

 ably to shrinkage in drying. Meso- and metathorax usually decidedly shorter 

 than the pronotum but shrinkage in drying varies proportionate measure- 

 ments very decidedly, and fresh material or individuals preserved in spirits 

 would very likely show these segments to be about as in the illustration 

 of hubbardi mentioned above. 



Abdomen apparently broader and more broadly rounded posteriorly than 

 in hubbardi and, in all specimens examined, the tip has the terminal one or 

 two segments turned inwards, but here again shrinkage may be the cause. 

 The cerci are like those of hubbardi but are more or less concealed by the 

 turning in of the apical segments of the abdomen as noted above; the terminal 

 bristle is considerably longer than the cercus itself. Along the sides of the 

 thorax and abdomen are some thicker and more bristly hairs than are most 

 of those with which the entire insect is more or less sparsely covered. 



Legs in general similar to those of hubbardi but differing decidedly in the 

 ventral armature of the posterior femora; tibiae bearing short hairs, generally 

 shorter than the tibial depth, some of the ventral ones, especially on the pos- 

 terior tibiae, somewhat thickened and spur-like, but very small; anterior 

 and intermediate femora not noticeably armed beneath except with some 

 slightly thickened hairs; posterior femora armed beneath with eight or nine 

 moderately stout chitinized spines, the apical one situated very near the 

 apex of the femora and the others at more or less subequal intervals, the 

 basal one or two generally somewhat longer and stouter than the others, and 

 sometimes separated from each other and from the others by spaces a little 

 greater than that between the more apical spines; the basal of these spines 

 is situated some distance from the base of the femora, usually a distance 

 about equal to the length of that spine; there seems to be much variation in 

 this ventral armature of the posterior femora, as in some specimens the 

 spines are more uniform in l(>ngth than in others, or more equally spaced. 



Measurements. — The total length is clearly somewhat greater than in 

 hubbardi, but the only specimens seen are dried and evidently much shrunken. 

 Certain measurements of the type specimen are as follows: length, antennae, 

 1.75 mm.; pronotum, .4 mm.; jwsterior tibia, .9 mm.; posterior femora, .85 

 mm.; width, pronotum anteriorly, .6 mm., posteriorly, .3 mm. 



The great inequality of the pronotal width as shown by the above meas- 

 urements is very surely due mostly to shrinkage and would not be so striking 



