442 



SUBFAMILY X. CURCULIOXIX.T-:. 



682 (- 



-). CEUTORHYNCHUS ^EKATUS Dietz, 1896, 431. 



Elongate-oval. Black with bronzed lustre, thinly clothed above with 

 fine pubescence, condensed in a scutellar white spot and on sternal side 

 pieces; otherwise similar to cyanipennis. Length 2.5 mm. 



Described from a single male from Ohio, now in the Hike col- 

 lection. Very probably a color variety of ci/aiiipeunis or an ab- 

 normal margiuatus. 



683 (8838). CEUTORHYXCHUS RAP.*: Gyll., Schon., 1837, 547. 



Oblong-oval, robust. Black, above uniformly clothed with hair-like 

 scales which are yellowish in newly matured, grayish in old or hiber- 

 nated specimens; beneath thickly clothed with larger whitish oval scales. 

 Beak slender, cylindrical, slightly longer than head and thorax, finely punc- 

 tured, striate on basal half; antennas inserted near its middle, first and sec- 

 ond joints of funicle each about as long as third and fourth united. Thorax 

 near base one-third wider than long, thence strongly narrowed to and deeply 

 constricted near apex; disc densely and coarsely punctate, its dorsal chan- 

 nel entire, more deeply impressed near base and apex. Elytra one-fourth 

 wider at base than thorax, sides nearly straight and parallel to beyond mid- 

 dle, thence converging to the rounded apex; striae fine, punctured; inter- 

 vals wider, flat, rugose, the declivity with small acute granules. Length 

 2.73.2 mm. (Fig. 102.) 



Frequent in northern and central Indiana, much less so in the 



southern counties; May 

 G. Taken bv 



6 Oct. 



sweeping hedge mus- 

 tard and pepper-grass. 

 Locally abundant near 

 New York City on cab- 

 bage, rape and other 

 cruciferous plants. 

 Ranges from Canada 

 and New England to 

 California, mainly in 

 the Upper Austral life 

 zone. This species Avas 

 redescribed by Dietz under the name C. affluent us but Chitten- 

 den (1900, 41), in a very full account of the life habits of the 

 beetle, has shown that the insect so described is none other than 

 the well known European form, C. rapa\ 



It was introduced into New England about 1855 and is known 

 as the "cabbage curculio," the larva? feeding within the stems and 

 on the edges of the leaves of cabbage, turnip, horse-radish, cauli- 



Fig. 102. a, Beetle, X 



b, side view of same; 



c, larva; d, head of larva; c, pupa in cocoon. 

 (After Chittenden.) 



