BEETLES OF THE GENUS MYOCHROUS — BLAKE 39 



tion under the dense scaliness not very coarse and well spaced but 

 dense. Elytra with a short intrahumeral sulcus and basal callosity on 

 each side of scutellum, and a slight depression on the outer side of 

 elytra below the humerus ; striate punctation regular, without trans- 

 verse ridgings; pubescence dense, nearly concealing the bronzy sur- 

 face beneath, and presenting a mottled brown and white appearance. 

 Body beneath shining bronze with a fine pale pubescence, punctures 

 on first abdominal segment moderately dense and fine; an indistinct 

 blunt tooth on posterior femora, anterior tibiae with the usual tooth 

 on inner side. Length 4.4 to 5.2 mm. ; width 2 to 2.3 mm. 



Type and faratypes. — Type male and three paratypes, U.S.N.M. No. 

 59014, collected by E. A. Schwarz and A. H. Jennings ; one paratype 

 in Museum of Comparative Zoology. 



Type locality. — Ancon, Canal Zone, Panama. 



Other localities. — CaNxIll Zone: Gatun and Paraiso (A. H. Jen- 

 nings) ; Panama: No specific locality (E. A. Schwarz) ; Tabernilla 

 (A. Busck) ; found in banana debris in shipments from Honduras, 

 Nicaragua, Guatemala, and Mexico. One specimen collected by H. 

 Dybas at Puerto Berrio, Colombia, cannot be distinguished from the 

 specimens from Central America. 



Remarks. — Its small size and mottled appearance, a result of the 

 intermingling of pale and dark brown scales, readily distinguish this 

 little beetle from the larger ones having more uniform clothing. The 

 aedeagus is peculiar in being pale yellowish with a dark streak down 

 the furrow at the tip. 



MYOCHROUS PAULUS, new species 

 Plate 4, Figure 4 



From 4 to 5.5 mm. in length, oblong, shining bronze beneath the 

 closely appressed mottled brown and white scales; prothorax 3- 

 toothed, densely and finely punctate, the punctures frequently becom- 

 ing coarser and a little ridged in the middle of the base. 



Head covered with brown and white scales down to the base of the 

 antennae, beneath these a median depressed line and a distinctly 

 punctate, rugose surface, with the usual occipital ridge on each side. 

 Antennae reddish brown, of the usual proportions. Prothorax large, 

 nearly as wide as elytra, broader than long, with three lateral teeth 

 and the usual apical and basal tooth; disk evenly convex, depressed 

 along base, surface finely and moderately densely punctate, the punc- 

 tures becoming coarser at base and somewhat ridged in some speci- 

 mens near the middle of the base. Elytra not so densely covered by 

 the brown and white scales as to conceal the bronzy luster and striate 

 punctures below; in basal half, especially in the transverse depres- 

 sion below the basal callosity, the surface ridged. Body beneath shin- 

 ing beneath the light pale pubescence, punctures on first abdominal 



