226 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



Female. — Very similar to male, but differs from it in being slightly 

 more robust, first abdominal segment more convex, and the tibiae 

 unarmed at apex. 



Length, 5.5-6.25 mm. ; width, 1.75-2 mm. 



Type localities. — Of coeruleus, Italy (" Provinces of Florence and 

 Pisa, Etruria "). Of cyaneus, Europe. Of amabilis, Germany (Sax- 

 ony). Of cyanescens, Germany. Of sulcaticeps, France (Basses 

 Alpes). The present location of the types of all the species listed 

 above are unknown to the writer. 



DISTRIBUTION 



In Europe: Austria, Bulgaria, France, Germany, Italy, Portugal, 

 and Spain. 



In the United States : 



Massachusetts: Sherborn, May 28, 1921 (C. A. Frost). 

 Wisconsin: Sturgeon Bay, July 26, 1920 (Charles L. Fluke). 



Variations. — None worthy of mention was observed in the few 

 specimens examined. 



Host. — Nothing is known of the larval habits of this species in 

 America. In Europe Schaufuss (1916) records the larvae as living 

 in Lonicera nigra, oak, birch, beech, and alder. Mokrzecki (1921) 

 records the larva as living under the bark of roses (Rosa sp.) in 

 Bulgaria, and are more or less injurious to these plants. 



This species was probably introduced into this country from 

 Europe, where it is recorded as not being rare. Its occurrence in 

 this country was first recorded by C. A. Frost (1922), from material 

 collected by Charles L. Fluke, at Sturgeon Bay, Wis., who reported 

 it very abundant flying around the wild raspberry bushes, and later 

 a specimen was collected by C. A. Frost, while sweeping weeds and 

 grasses in a pasture near Sherborn, Mass. These specimens have 

 been compared with specimens received from Europe as coerul&us, 

 and no differences could be found. This species will probably be 

 confused in collections with the bluish forms of politus, but can be 

 separated from that species by having the outer joints of antennae 

 as long as wide. 



74. AGRILUS CRATAEGI Frost 



Figure 55 



Agrilus crataegi Frost, Canad. Ent, vol. 44, 1912, pp. 247-248. — Kwiat, 

 Ent. News, vol. 26, 1915, p. 237.— Feost, Canad. Ent., vol. 52, 1920, p. 

 251.— Frost and Weiss, Canad. Ent., vol. 52, 1920, p. 222— Kntjix, 

 Canad. Ent., vol. 54, 1922, p. 85; Ohio State Univ. Studies, vol. 2, 

 no. 2, 1925, p. 48. — Chamberlin, Cat. Buprestidae, 1926, p. 57. 



