122 MAINE AGRICULTURAL EXPERIMENT STATION. I9I5. 



DcltocepJialus affinis Gillette and Baker. 



Deltoccphalus melsheimen Van Dtizee, Am. Ent. Soc. Trans. XXI, 292. 

 Deltoccphalns affi>iis Gillette and Baker, Hemip. Colo. p. 84. 



Light gra}', faintly marked, the head obtusely angled and broad, the 

 elytra sometimes faintlj' marked Avith fuscous. Larger and with much 

 blunter head than melsheimcri. Length 4 mm. 



While this is a common and at times an extremely abundant species 

 in states farther west it has been taken very sparingly in Maine and 

 evidently does not occupy an important economic place. Our specimens 

 were secured at Orono June i8th and 19th and I took it at Portland Aug. 

 13th. Highmoor Farm Aug. 15, 1913. Also at Elliott and Kittery June 

 26, 1914. 



Deltocephalus nigrifrons Forbes. 



DeUocephalus nigrifrons Forbes. I4tli Rept. 111. State Entomologist, p. 



67, (1884). 

 Deltocephalus nigrifrons Osborn and Ball. Pr. la. Acad. Sc, IV, p. 218, 



(1897). 



Light gray or yellowish above, the face almost entirely black by coales- 

 cence of frontal black arcs and sutural lines. A row of black dots 

 bordering the front of the vertex and turning down in front of the eyes. 

 Elytral veins often bordered with fuscous but the color varies greatly 

 in intensity. Length 5 mm. 



This species which often swarms^ in immense numbers in oats, wheat 

 and annual grasses over a large part of the country must be exceptionally 

 rare in Maine as only a single specimen has come to light each season, 

 these being collected at Orono Sept. 12, T913, and July 6, 1914. They 

 are of the typical dark form and marking with the facial lines dark 

 and the elytral markings well defined. 



Deltocephalus configiiratus Uhler. 



Deltocephalus configiiratus Uhler. U. S. Geol. and Geog. Sur. Bull. 1871. 



4 : 511- 

 Deltocephalus configuratus Van Duzee. Buf. Soc. Nat. His. Bui. 4 : 198. 

 Deltocephalus configuratus Osborn and Ball. Pr. la. Acad. Sci. Vol. 



IV, p. 209 (1897). 



Light ashy gray, the head with two darker transverse bands and the 

 last ventral segment with a black polished central spur. Length S 4 mm. 

 $ 4.5-5 mm. 



Quite abundant in timothy meadows and grassland at Orono as adults, 

 Aug. 5 to 29th, X. Harpswell Aug. 12, common in meadow and pasture, 

 Portland Aug. 13, common in meadow near salt marsh, Portland (River- 

 ton Pk.) Aug. 14. common in meadow, Highmoor Farm Aug. 15, com- 

 mon in meadow and pasture, Mt. Katahdin Aug. 21, 1913, on tableland 

 4500 ft. 



