i88 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BuU. 



the crest. The body color is gray with brown fascia ; the front 

 of the crest is gradually sloping; the posterior process is short 

 and heavy, not reaching the tips of the tegmina which are hyaline 

 with a prominent brown area at the apices. 



Hosts : White oak, swamp white oak. 



Litchfield, 19 July, 1913 (L. B. W.). 



T. maculata Van Duzee. (PI. iv, 17.) 



1908. Telamona maculata Van Duzee. Stud. N. A. Memb., 72. 18, pi. 2, 

 figs. 8 and 41. 



Not common. Recognized at once by the extremely produced 

 suprahumeral angles which are twice as long as in any of the other 

 local species of Telamona. The crest is almost perpendicular in 

 front, obliquely truncate or rounded above, and nearly straight 

 behind. The metopidium is strongly marked with brown at the 

 base of the crest on each side. 



The life history is not known, but it seems to spend its entire 

 life on swamp oak. 



Hosts: Swamp white oak (Q. hicolor), white oak (Q. alha). 



New Haven, i Sept., 1912; 30 July, 1913 (W. E. B.). 

 T. unicolor Fitch. (PI. iv, 19 and 20.) 



185 1. Telamona unicolor Fitch. Cat. Ins. N. Y., 50. 



185 1. Telamona fasciata Fitch. Cat. Ins. N. Y., 50. 



1858. Hemiptycha diffusa Walker. List Horn. Brit. Mus. Suppl., 143. 



Common on hickory and often found on butternut and walnut 

 The females are large and of a brilliant grass-green uniform 

 color; the males are smaller, of a bright yellow color with deep 

 brown fascia. This difference led Fitch to describe the two sexes 

 as separate species and the specific name is decided only by the 

 fact that the description of unicolor precedes that of fasciata on 

 the page. The insects are very active, strong fliers, and are at 

 once recognized by their large size (10 mm.) and high, square 

 crest. The tegmina are tipped with brown. 



The life history has been worked out on the hickory on which 

 the eggs are laid during September. Hatching takes place about 

 the middle of May and the insects reach maturity the last of June. 

 The nymphal instars average, respectively, ten, six, five, ten and 

 fourteen days. Mating has been observed throughout August and 

 September. The males seem to be much less numerous than the 

 females. 



Hosts : Hickory, butternut, walnut, basswood. 



New Canaan, 10 Sept., 1914 (B. H. W.) ; Wallingford, 22, 24 June, 

 3, 15, 24 July, 1912 (D. J. C.) ; Rainbow, 5 July, 1918 (M. P. Z.) ; Litch- 

 field, July to Sept. (L. B. W.) ; Cornwall, 16 June, 1921 (K. F. C). 



T. extrema Ball. 



1903. Telamona extrema Ball. Proc. Biol. Soc. Wash., xvi, 179. PI. 

 I, figs. 1-16. 



Rare in eastern United States. The species resembles T. uni- 

 color but is smaller and both sexes are uniformly dull greenish 



