RHYNCIIlTlDJi: — ISOTHEIN^E — TuXultUY.NClllM. 27 



o-reatly onlarged. Thorax nearly twice as high as hiiig. Elytra heavily 

 carinato. Legs moderately slender with normally thickened femora. 



'i'wo small species occur in the western 'JV-rtiaries, both at Florissant. 

 The smaller should be regarded as the type. 



Table of the speeieti of To.iorliynrhun. 



Eye not iiincli, if any, wider than the beak ; the hitter olordinaiy stoutness, .mmmcuhis. 

 Eye tlirec times as wide as the l)ealv; tlie latter exeeedingly delicate ociilatiiH. 



To.VORHYNCHUS MINUSCULUS. 

 PI. IV, Fig. 1. 



Head smooth but for the transverse striation or carding, which is verv 

 regular and delicate; gye circular or transversely oval, surrounded with 

 granulations, which are also seen upf)n the rostrum. This is very gently 

 arcuate, having a general direction nearly in contiiniation of the general 

 direction of the upper outline of the head, and is of about the length of 

 the prothorax. Prothorax latlicr coarsel}' and lather densely granulose, as 

 is also the whole under surface of the body, though more sparsely, and 

 with ])erhaps hirger granulations. Elytra witli about ten verv prominent 

 granulate carina^, the interspaces also irregularly granulose, all the granu- 

 lations of the same size as those on the prothorax. Femora, and even 

 tibia", minutely and faintly transversely corrugate, on the tibias showing a 

 tendency to break up into granulations. 



Length, excluding rostrum, •_'""": height, 11""": length of rostrum, 

 OG""'. 



Florissant, Colorado. Seven specimens, Nos. 7344, 8952, 9224, 10024, 

 10902, 144!I0, 1525G. 



TOXORHYNCHIIS OCULATUS. 

 I'l. IV, Fig. 11. 



. A single specimen, unfortunately with the very delicate rostrum 

 broken. Head very small for this group, apjiarently smooth, the exposed 

 side almost entirely occupied by the large sul)circular eve. the hinder 

 margin <>t' which reaches the prothorax and the facets of which are uuusu- 



