328 



CALIFORNIA ACADEMY OF SCIENCES. 



regularly asperate. Legs and anten- 

 nve moderate, briglit yellow. Lengtla. 

 .75-. 87 rum. 



United States. 



Differs from other species in its 

 depressed testaceous elytra and sculp- 

 ture. 



Elytra just visibly longer than wide, 

 distinctly longer than the head and 

 prothorax together, one-half longer 

 than the pronotum, rather convex, 

 more strongly and closely asperate 

 than the prothorax; transverse rows 

 only distinct near the suture. 

 Length, .65-.8 mm. 

 Pennsylvania. ' 



It will be readily seen that in color, especially of the legs 

 and anteunfe, in the convexity and length of the elytra, and 

 particularly in the form of the posterior angles of the pro- 

 notum. /««^i?i?{S differs so greatly from discolor as to preclude 

 any doubt of their distinctness. 



T. parallela Mots.— Thorax rather 

 large, sub-quadrate, widest at the 

 base; sides slightly rounded; hinder 

 angles much produced and very 

 acute. Legs and autenntB long, bright 

 yellow. Length, .75-. 87 mm. 



Dist. of Columbia. 



Di£fers from others in its oval elong- 

 ate form, rufofuscous elytra, and 

 bright yellow antennie. 



T. lonsfipennis Cas.— Prothorax 

 widest slightly in advance of the 

 base, where it is about twice as wide 

 as long; posterior angles not at all 

 produced. Legs and basal joints of 

 autenme dark piceo-rufous, remain- 

 der of the antennae ijiceous-black. 

 Color above piceous-black through- 

 out. Length, 0.9 mm. 



Pennsylvania. 



The structure of the posterior angles of the prothorax and 

 the color of the legs and antenna aloue would separate lon- 

 gipennis from •parallela at the merest glance under suitable 

 magnifying power. 



EUSCAPHURUS n. gen. (Eucinetini). 



Head strongly deflexed; mentum transverse, trapezoidal, apex broadly 

 arcuate, continued anteriorly by a broadly lunate additional piece, leaving 

 the tip of the ligula exposed. Labial palpi three-jointed; first strongly 

 dilated, bulbous; second small, longer than wide, af3tixed obliquely to the 

 first; thii'd long, slender and in the form of a translucent spine; maxillte large, 

 lobes very small and slender, hook verj^ minute and rudimentary; palpi four- 

 jointed; first rather slender, sub-cylindrical; second slightlj' wider than long, 

 nearly trapezoidal; third longer than the first, ovoidal, acuminate at tip; 

 fourth in the form of a very small transparent spine. Antennie eleven-jointed, 

 geniculate, strongly clavate; club consisting of five or six joints which are 

 gradually wider, strongly flattened; eyes having an acute edge at the sides 

 beneath, where also they are feebly excavated for the passage of the antennse, 

 very coarsely granulated. Epistoma distinct, labrum small, strongly arcuate 



