352 MEMOIRS ON THE COLEOPTERA 



flattened; antennae nearly similar; prothorax less transverse though of 

 similar form and ornamentation, the sides evenly arcuate and converging 

 from the basal constriction to the apex; elytra similar but at base a little 

 wider than the prothorax and not equal thereto as in crinicornis; legs 

 more slender. Length (cf, 9) 11.6-12.5 mm.; width 3.4-3.6 mm. A 

 single pair without designation of locality but probably from Texas. 



Closely allied to crinicornis, with a pair assumed to be of that 

 species, taken at Brownsville, Texas, it has been compared. It is 

 notably narrower in form than crinicornis. 



Cyllene filicornis n. sp. Very small in size, slender, the ornamentation 

 throughout as in reducta, the legs and antennae similarly rufous; inter- 

 antennal protuberance more feeble, more laterally expanded at the frontal 

 margin; antennae (c?) similarly about as long as the body but extremely 

 slender and filiform, the joints similarly proportioned in length; prothorax 

 differing conspicuously in form from either reducta or crinicornis, being 

 parallel and straight at the sides to the middle, then gradually and more 

 strongly rounding to the apex, much less transverse, being only about a 

 third wider than long; elytra as in reducta but still more distinctly wider 

 than the prothorax; legs slender, very much shorter. Length (cf) 8.4 

 mm.; width 2.5 mm. Texas. 



Distinguishable readily from the preceding by its very small size, 

 still more slender form, very much more slender and filiform 

 antennae, outline of the prothorax and other characters. 



* Cyllene andesiana n. sp. Similar throughout to crinicornis in form 

 and ornamentation but a little stouter, somewhat larger and with more 

 transverse prothorax, the spots of dense pale pubescence better defined, 

 denser and of deeper yellow color; antenna? (9 ) similar, except that the 

 third joint is a little longer than the fourth and not shorter than the fourth 

 as in crinicornis: elytra with the black ground more finely and densely 

 velvety. Length (9) 15.0 mm.; width 4.8 mm. Ecuador (Babahoyo, 

 at the foot of the Andes). 



Distinguishable from crinicornis by the characters given above; 

 the two sutural pairs of spots before and behind posterior fourth are 

 more widely separated longitudinally than in crinicornis. 



Of erythropus Chev., I have before me a pair, in excellent condi- 

 tion, from Guerrero; it is ornamented very nearly as in crinicornis, 

 except that there are only three fine transverse pronotal belts of 

 pale yellow and the pygidium is pallidly lineate along the middle; 

 it is also notably larger in size. 



The two following species come nearer to Megacyllene antenna ta 

 than any others and are native to the same regions; in them the 

 antennal joints are almost truly spinose, the outer angles being 

 finely and acutely prolonged for a short distance, but in all the other 



