AMERICAN COLEOPTERA. IGl 



Eleodes pilosa, Horn. 



lu fi-:;. 13 is shown a specimen of Eleodes pilom, the right antenna 

 of which is deformed; the ninth joint bearing on its end two 

 branches of two joints each. Fig. 13 a, represents the antenna en- 

 larged. The first seven joints are normal. The eighth and ninth 

 equal each other in length being slightly shorter than the seventh. 

 The eighth is as wide as long. The ninth at base is as wide as 

 Ions; at the middle almost twice as wide. From the anterior part 

 of the end arises a branch of two joints which are flattened, almost 

 connate and a little more than half as wide as the ninth joint 

 and as long as wide. The last joint is sinuate at tip. From the 

 posterior part of the end of the ninth joint arises a branch also 

 of two joints which equal in length those of the other branch but 

 are more cylindrical and more nearly resembling normal terminal 

 joints. 



From Nevada. In Dr. Horn's Cabinet. 



Ilelops sulcipeniiis, Lee. 



Fi"-. 14 represents an anomaly in the right maxillary palpus of 

 a specimen of Helops snkipennis. Fig. 14 a, shows the normal palpus. 

 The anomaly consists in the second joint bearing two terminal joints, 

 one from the outer end of the anterior border and one from the tip. 

 The first joint of this palpus is normal. The second nearly so ex- 

 cepting a dilation and flattening of the anterior border into which 

 the terminal joint is inserted. The latter joint, which in the figure 

 is represented as seen from below and is foreshortened as its plane 

 is nearly perpendicular to the plane of the palpus proper. When 

 viewed from the side it is precisely similar to the terminal joint in 

 fio-. 12 a. The other joint which arises from the tip of the second 

 is really made up of two joints soldered together at the bases of 

 their broad surfivces. It is consequently twice the thickness of the 

 other terminal joint and at its free edge deeply grooved indicating 

 the union of two joints, and presenting that silky appearance common 

 to the free edge of the normal joint. It is shown in the figure as 

 seen partially from below, partially from the side. The parts shaded 

 are intended to represent the edges of the two joints in one, the 

 dotted part the deep groove. 



In Dr. Horn's Cabinet. 



TRANS. AMER. ENT. SOC. VHI. (21) JUXE, 1880. 



