CLASSIFICATION OF THE SUBFAMILY CRYPHALINA, 37 
Note: Trypophloeus binodulus Ratz. is more nearly allied to the preceding species, 
forming a subdivision characterized by the elytra having fine short scales and rows of 
much coarser interspacial ones. It differs from T. populi, which has the elytra with 
densely placed, fine scales but without rows of interspacial ones. 
Trypophloeus populi, new species. 
Length, female type, 2.05 mm.; brown, oblong; anterior margin of pronotum scarcely 
produced. with four marginal teeth, two median ones much longer and closely placed, 
rugosities confused or in subconcentric rows; front broad, subopaque, with faint median 
elevation; elytral declivity slightly impressed, without granules. Williams, Ariz., in 
Populus tremuloides; E. A. Schwarz, collector. Type, Cat. No. 7397, U. S. National 
Museum. 
The male has not been recognized. 
Trypophloeus punctipennis, new species. 
Length, female type, 1.95 mm.; body brown, oblong; anterior margin of the pronotum 
with eight small teeth, decreasing in size from two median ones, rugosities small and 
coniused; elytra shining, with striz distinct on dorsal area, becoming closer and dis- 
tinctly impressed on lateral area, but obscure on declivity, which is convex, shining, 
punctures in rows. Alta, Utah, June 30; E. A. Schwarz, collector. Type, Cat. No. 
7399, U. S. National Museum. 
Note: This species is allied to T. alni Lind. and T. granulatus Eichh. of Europe, 
which form the second division of the genus, characterized by having the pronotum 
slightly narrower than the elytra and the elytral strize distinct and punctured on the 
dorsal area. 
Genus MARGADILLIUS, new genus. 
Antennal funicle 3-jointed, joint 3 narrow; club compressed, broad, 
sides and apex broadly rounded, anterior face with three procurved 
sutures, posterior face with two broadly procurved sutures, without 
septa; pronotum slightly broader than long, apical margin broadly 
rounded and faintly serrate; eyes short, elliptical, acutely emarginate. 
Type of genus, Margadillius margadilaonis, new species. 
I. Elytra with fine and coarse scales; pronotum with fine scales. 
Pagbilao, P. I., ina tree popularly called tucuen .................... minutus. 
Calipane 2S te ae Beans silick 2 = 2s Ss ke erythrinae, page 38. 
Il. Elytra with fine scales and long hairs; pronotum with hairs. 
Pronotal rugosities fine, closely placed, not in concentric rows on dorsal area. 
Pasbilse: A. ie CUED 5 oo confusus, page 38. 
Pronotal rugosities coarse, sparse, and in concentric rows on dorsal area. 
Pagbilao, P. I., ina tree popularly called margadilao. margadilaonis, page 38. 
Margadillius minutus, new species. 
Length, female type, 0.9mm.; light brown; body short, elliptical; anterior margin 
of pronotum with six teeth, becoming smaller from the two apical ones, rugosities 
small, sparse, confused, extending into the posterior dorsal area and toward the side; 
front. opaque, with posterior shining space; elytra densely clothed with exceedingly 
fine scales and sparsely placed coarse ones in approximate rows, elytral strie and 
interspaces obscure, declivity oblique, subconvex, shining. Pagbilao, P. I., in 
