600 PR0CEEDIN08 OF THE NATIONAL MUSEUM. vol.46. 



Vertex broad, relatively short, weakly carinate; frontal carina 

 forked well below apex of head, subobsolete on apex; clypeus weakly 

 carinate; antennae not quite as long as frons, I nearly half as long as 

 II. Thorax broad; lateral carinse of pronotum disappearing before 

 reaching hind margin. Legs long; hind tibiae distintly longer than 

 femora; calcar about half as long as basal tarsus. 



Redescribed from one female from Long Island, New York 

 (Zabreske) . 



DICRANOTROPIS ATER Van Duzee. 

 Pissonotus ater Van Duzee '97:237; '05:198.— Osborn '97:235; '00:65. 



One female in the collection is labeled us this species, but it does 

 not correspond with Van Duzee's description very closely. 



Locality. — New York (Van Duzee), Washington, District of 

 Columbia, Ohio (Hine), Iowa (Osborn). 



After the preparation of this manuscript had been completed a 

 paper by C. S. Spooner appeared,^ describing several new species in 

 this genus, as well as one species of Libumia and one of AcJwrotile. 

 There are no illustrations with the descriptions and, since there is 

 such a variation in coloration of these insects and color characters 

 are the ones given most fully by Mr. Spooner, I have not wished to 

 attempt to include these in the synopsis of the species. These will 

 be treated in a subsequent paper on the same gi'oup. 



DICRANOTROPIS GUTTATUS Spooner. 

 Pissonotus guttatus Spooner 'ii?:233. 

 This is apparently a dark form of D. delicatus. The range of color 

 in this species is quite large, as shown by the examination of a large 

 series. A description of a species in this gi'oup based only on one 

 female is not very satisfactory. 



Locality. — Ithaca, New York, August, 1896. 



DICRANOTROPIS FOVEATUS Spooner. 

 Pissonotus foveatus Spooner '12:2M. 

 This appears to be somewhat similar to aphidioides or frontalis. 

 Locality. — Corpus Christi, Texas, May, 1907. 



DICRANOTROPIS VARIEGATUS Spooner. 

 Pissonotus variegatus Spooner 'J2:235. 

 This, also, is described from a single female. Female characters 

 alone are very inadequate for the determination of species. 

 Locality. — Corpus Christi, Texas, June, 1907. 



DICRANOTROPIS DIVARICATUS Spoonsr. 

 Pissonotus divaricatus Spooner 'i«';23G. 

 D. hasalis, which Mr. Spooner says this resembles, was merged with 

 delicatus. Perhaps this is distinct, however. 

 ZocaZ%.— Middletown, New York, July, 1910. 



I Can. Ent., vol. 44, Aug., 1912, pp. 233-242. 



