No. 34.] HEMIPTERA OF CONNECTICUT: COREIDAE. 749 



2. Head with a tubercle behind the base of each antenna ; color dark 

 brown, lateral margins and median line of head and thorax paler, 

 antennae concolorous, connexivum spotted; length 14-17 mm. ..tristis 

 Head without tubercles; color light brown, with black markings, 

 apical antennal segment paler, connexivum spotted; length about 

 l 4 mm repetita 



A. armigera (Say). 



Jour. Acad. Nat. Sci. Phila., iv, 319, 1825. 



Occurs in Massachusetts and to the south and west. 



New Haven, 26 June, 1919 (K. F. C). 

 A. tristis (DeGeer). (PL xviii, 35 ; eggs, PL xix, 3.) Squash 

 bug. 



Memoires, iii, 340, 1773. 



The common and destructive species. 



New Haven, 13 July, 1900, 26 March, 16 Oct., 1915, North Haven, 11 

 Sept., 1915 (W. E. B.), 17, 20, 21, 22 July, 1903, 29 Sept., 1902, 31 July, 

 1908, 16 Oct., 1908 (B. H. W.), 7 May, 1913, 25 July, 1914 (M. P. Z.) ; 14 

 Apr., 1919 (W. E. B.) ; Westville, 29 May, 1902, 19 Sept., 1904, 26 March, 

 1905 (W. E. B.) ; Manchester, 12 Sept., 1910, Berlin, 16 Sept., 191 5 

 (W. E. B.) ; Wallingford, 16 June, 191 1 (J. K. L.) ; Hamden, 24 June, 

 1913 (E. M. Stoddard). 

 A. repetita Heidemann. (PL xviii, 34.) 



Proc. Ent. Soc. Wash., vii, 11, 1905. 



Wallingford, 1911 (D. J. C.) ; New Haven, 12 June, 1915 (W. E. B.). 



Family ALYDIDAE. 

 By Howard Madison Parshley, Sc.D. 



This and the following family are groups of moderate extent, 

 which have often been treated as subfamilies of the Coreidae. I 

 believe that Reuter was correct in giving them independent rank, 

 which is based on distinctness in habitus as well as in detailed 

 characters. Aside from the characters mentioned in the key, the 

 Alydidae have the posterior coxal cavities not very deeply excised 

 from the metasternum ; fourth and fifth dorsal abdominal seg- 

 ments concavely arcuate at base ; and the copulatory apparatus of 

 the male exposed. 



Key to Tribes. 



Head not constricted behind eyes, as wide as apex of prothorax ; 



juga bifid at apex Micrelytrini 



Head distinctly constricted behind eyes; juga entire at apex . .Alydini 



Tribe MICRELYTRINI. 



Protenor Haglund. 



P. belfragei Haglund. (PL xviii, 37.) 

 Stett. Ent Zeit, xxix, 162, 1868. 

 Color light brown; length about 15 mm. 



