SUBFAMILY IV. — GEOCORIN^E. 375 



from Quebec and New England west to Dakota, Utah and Van- 

 couver, and southwest to Florida and California. Hussey 

 records it as very common in the sand dunes of Berrien Co., 

 Mich., "where numbers of individuals were seen running about 

 on the ground among the sparse grasses; one adult thus run- 

 ning was followed closely in all its erratic course by a nymph 

 of about the third instar." 



In addition to typical bullatus as above described there occur 

 in our territory two varieties which may be separated from 

 the typical form as follows: 



KEY TO VARIETIES, OF GEOCORIS BULLATUS. 



a. Joints 1 — 3 of antennae reddish-brown or in part fuscous above; pro- 

 notum rather sparsely irregularly punctate, its hind margin al- 

 most smooth. 

 b. Corium with fuscous markings only on internal angle or along hind 

 margin; length, 3.2 — 4.2 mm. 315. bullatus. 



bb. Corium wholly or in great part fuscous to piceous; length, 4.5 mm. 



315a. var. borealis. 

 act. Joints 1 — 3 of antenna? a uniform bluish-green above; pronotum 

 more thickly, evenly and finely punctate to its very base. 



315b. var. floridanus. 



315a (499a). Geocoris bullatus borealis (Dallas), 1852, 585. 



Of his Ophthalmicus griseus, now recognized as a synonym of Geo- 

 coris bullatus Dallas (loc. cit.) says in part: "Subtus niger; thorace quad- 

 rato, transverso, postice vix latiori. Long, lin. l 1 ^ — 1%." On the same 

 page, of his O. borealis he says: "Subtus niger, pectore abdominisque 

 marginibus albido-maculatis; thorace postice latiori. Long, lin. 2." These 

 are the only differences of any note between the descriptions of the two. 



Colorado (U.S.N.Mus.; Cornell Univ. Coll.). Distant (1882, 

 199) recognized borealis as a distinct species, stating that: "All 

 the Central American species which we have received are con- 

 stant in character and of the form described by Mr. Dallas, of 

 which I have examined the type." McAtee (1914, 131) makes 

 borealis a variety of bullatus and records a specimen from Ungava 

 Bay, Labrador. It is recorded elsewhere only from "North 

 America" by Dallas and Guatemala (12,400 feet) by Distant. 



315b ( — ). Geocoris bullatus floridanus var. nov. 



Smaller than the average bullatus, more narrowed and wedge-shaped 

 behind; general color less grayish, more dull yellow; joints 1 — 3 of an- 

 tenna? reddish-brown beneath, bluish-green above, 4 wholly pale brownish- 

 yellow; pronotum with outer half of each callus and two oblong spots 

 on hind margin, black; scutellum piceous-brown with a vague yellowish 

 spot each side; femora with numerous small brownish dots. Pronotum 

 with entire surface, including humeral angles, finely and evenly punctate. 

 Characters otherwise as in bullatus. Length, 3 mm. 



