Jan., 1920] New North American TingidcE 51 



Several specimens, taken on Heteromeles arbutijolia at 

 Stanford, California. I have heretofore determined this insect 

 as Corythucha incurvata Uhler. Prof. E. P. Van Duzee kindly- 

 sent me a typical specimen of C. incurvata Uhler, which has 

 been carefully compared with Uhler's type deposited in the 

 California Academy of Science. Gibson- erroneously states 

 that the types are in the National Museum. According to 

 Uhler^ the types were deposited in California Academy of 

 Science. The species can be distinguished from itictirvata 

 by the much less elevated hood. C. bullata Van D., according 

 to paratype before me, has a slightly higher hood than incurvata. 

 All three species feed upon the California Christmas-berry tree. 

 Type in my collection. Paratypes in California Academy of 

 Science and my collection. 



Corythucha sphaeralceae species new. 



Hood moderately raised, somewhat flattened posteriorly, abruptly 

 constricted just back of the middle, armed with numerous rather long 

 spines on the nervures, its length twice its height. Median carina 

 slightly shorter than length of hood, attached to the hood near its 

 base, with mostly one row of areolae, a little less than one-half the 

 height of the hood, highest a little in front of the middle and with the 

 distal portion sinuate. Lateral carinae with five or six distinct areolae, 

 highest near the middle, terminating not far from the base of hood. 

 Rostrum reaching the meso-metasternal suture. Antennae beset with 

 a few long hairs. Elytra with the outer margins slightly concave or 

 nearly straight, tumid elevations moderately large. Costal area 

 triseriate. Outer margins of elytra and paranota, nervures of elytra, 

 paranota, carinae and hood armed with numerous rather long spines. 

 Length, 3.28 mm.; width, 1.86 mm. 



Body black. Legs and antennae brownish, the tips of each darker. 

 General color above brownish or pale testaceous, some of the nervures 

 partly embrowned. Areolae hyaline. Tips of spines black. 



The general color somewhat resembles that of C. erio- 

 dictyoncB O. & D., but readily separated from it by the hood and 

 the much longer lateral carinae. In some specimens the color 

 markings are more or less wanting. Numerous specimens, 

 taken on Sphaeralcea sp., Deep Springs Valley, Inyo Co., 

 California, July, 1918, collected by Prof. Ferris. Type is in my 

 collection. Paratypes in the California Academy of Science, 

 Leland Stanford University and my collection. 



2 Transactions of the American Entomological Society, Vol. XLIV, p. 93. 



3 Calif. Academy Science, Vol. IV, Sec. II, p. 223, 



