^ET.17 NORTH AMEEICAlvr WEEVILS PIERCE 19 



TABLE OF SPECIES OF ALLANDROS ^ 



Claws strongly divergent, antennae and legs black ; male beak flat with smooth 

 median line, female beak usually without line populi, new species. 



€laws more approximate, toothed; antennae and legs tinged with rufous; 

 male beak with median line crested; female beak with slightly raised 

 median line bifasciatus LeConte. 



ALLANDRUS POPULI, new species 



Length of male, 3.5 mm. ; of female, 2.75-4 mm. 



Black throughout, with fine white pubescence sparse on head and 

 prothorax, arranged in fasciae on the elytra and regularly but not 

 closely placed on under sides. Elytral fasciae consisting of an ir- 

 regular transverse band at basal third, which extends forward on 

 the median line to the prothoracic ridge. Behind the middle the 

 white spots are rather irregular but occupy the greater part of the 

 apical third. The pygidium is also clad with white pubescence. 

 The darker areas are provided with inconspicuous fine black pubes- 

 cence. Claws (fig. 47) slender, strongly divergent, slightly enlarged 

 or appendiculate near the base. 



The beak (fig. 45) of the male has a fine median line which is not 

 in the least crested as in Mfasciatus. In the female there is not a 

 trace of this line. The male antennae reach to the posterior third of 

 the elytra. The female antennae barely pass the elytral humeri. 



2 After this treatment was written a species was described as Allandrus hrevicornis 

 Frost 1920 (Can. Ent., vol. 52, p. 252), the introduction of which into Pierce's key neces- 

 sitates changes in the copy submitted ; and because of the author's absence the under- 

 signed undertook reexamination of the material to guide the editorial changes. Through 

 the kindness of Mr. C. A. Frost, cotypes of trevicornis were examined in connection with 

 the Allandri which were before Pierce, as well as other specimens now available — some 82 

 specimens in all. Three species are now recognizable in this material and the following 

 table and notes may help in their identification : 



1. Male with median carina of rostrum strongly developed into a prominent lamella and 



with front tibiae very strongly curved in middle half, the apical fourth broader and 

 straight. Tarsal claws rather stout, small and with well developed tooth. Canada, 



Virginia, Iowa bifasciatus LcConte. 



Male with rostrum not, or very feebly, carinate and with front tibiae simple. Tarsal 

 claws more slender and with, or without, a tooth near middle 2. 



2. Claws with acute tooth near middle. Maine to California brevicornis Frost. 



Claws without trace of tooth near middle but with inner edge feebly enlarged and 



sometimes subangulate close to base. Arizona, Idaho, Michigan populi Pierce. 



A. Mfasciatus LeConte. Four specimens in the Green collection are labeled " Bred on 

 Linden by A. B. Champlain, Harrisburg, Pa., 1921," and one is from northern Illinois. 

 Other localities represented are Iowa City, Iowa, Sept. 3, 1917 (Buchanan) ; Prince 

 Edward County, Ontario, April 15, 1915 (Brimley) ; Canada; and Wisconsin. Of the nine 

 males examined, two have the secondary sexual characters less developed. 



A. irevicornis Frost was described from a series of about 14 cotypes, several of which 

 were distributed. Three localities (Edmonton, Alberta ; Framingham, Mass. ; and Mon- 

 mouth, Me.) were recorded without designation of holotype or a type locality; and as the 

 first-mentioned locality is represented before me by two kinds of tarsal claws (representing 

 distinct species), the undersigned here designates as lectotype the male of a pair of cotypes 

 mounted on one pin and loaned from the Frost collection, the pin label reading " C. A. 

 Frost, Framingham, VII-18-15, Mass." Two of the seven cotypes now assembled bear 

 locality labels other than those originally mentioned. One of these, from Natick, Mass., 

 " VlI-27-'12," is in the Casey collection, and the other, from Sherborn, Mass., was among 

 the five cotypes loaned by Mr. Frost, who had previously deposited a Framingham cotype 

 in the National collection. He now writes that the type locality, about a half mile in 



