330 A^'NALS NEW YORK ACADEMY OF SCIENCES 



26. C. herculeanus L. var. whymperi Forel 



Formica herculanea Lord, Natur. in Vancouver I. and Brit. Col., II, p. 341, 

 1866. 



? Formica semipunctata W. Kirby, Fauna Bor. Amer., IV, p. 262, No. o62. 

 5, 1837. 



? Ca)nponotus semipunctatus Mayr. Verb. Zool. bot. Ges. Wien. XIII, p. 401, 

 1863. 



C. herculeanus Forel, Bull. Soc. Vaud. Sci. Nat, (2) XVI, p. S7, 1879, 1881; 

 Provancher, Natur. Canad., XII, 81, p. 354, No. 1, ^ $ 5, 1881; Faune Ent. 

 Canad. Hymen., p. 597, No. 1, ^ 9 ^ , 1883 ; Addit. Faune Canad. Hymen., p. 

 231, No. 1, 1887;Dalla Torre, Catalog. Hymen., VII, p. 233, 1893; Emery. 

 Zool. Jabrb. Abtb. f. Syst., VII, p. 674, 1893. 



G. herculeanus var. whymperi Forel, Trans. Ent. Soc. London, p. 699, $ 9 . 

 1902; Bull. Soc. Ent. Belg., XLVIII, p. 152, 1904; Emery, Deutscb. Ent. 

 Zeitschr., p. 184. ^, 1908; Wheeler. Geol. Survey Micb., p. .328, ^, 1908. 



WorAer major. Lengtb, 10-13 mm.; bead, 3.5 x 3.5 mm.; scape, 2.7 mm.; 

 hind tibia, 3.3 mm. 



Head as broad as long, broader bebind tban in front, with broadly excised 

 posterior border, rather convex sides and swollen cheeks. Eyes moderately 

 large, flat. Mandibles 5-toothed ; convex at the base, flattened or slightly con- 

 cave on their distal halves. Clypeus evenly convex, not carinate, its anterior 

 border scarcely produced, squarely truncated or feebly excised in the middle, 

 with a deeper excision on each side near the cheeks. Frontal area large, sub- 

 triangular ; frontal groove distinct. Frontal carinse lyrate, rather far apart. 

 Antennal scapes rather short, not extending beyond the posterior corners of 

 the head, terete, neither dilated nor flattened at the base, iucrassated distally. 

 Thorax robust, rather high, feebly and evenly arcuate above, narrower tban 

 the head, laterally compressed bebind ; epinotum obtusely angular, with sub- 

 equal base and declivity, the former feebly convex, the latter feebly concave in 

 profile. Petiole high, compressed anteroposteriorly, with convex anterior and 

 nearly flat posterior surface, its border rounded, entire and rather sharp. 

 Gaster of the usual shape, legs moderately long and stout ; middle and bind 

 femora neither compressed nor sulcate, elliptical in cross section. 



Opaque ; very densely and rather coarsely shagreened ; mandibles, eyes, 

 anterior portion, sides, lower surface and posterior corners of head more shin- 

 ing. Mandibles coarsely striato-punctate. Whole head covered with sparse, 

 shallow punctures, which are larger, but not elongated, on the cheeks. U]iper 

 surface of thorax and gaster with scattered piligerous foveoUie, the latter also 

 with numerous small, often transverse punctures bearing the pubescence. 



Hairs brownish yellow, coarse, short and erect, not very abundant ; absent 

 on the cheeks and sides of head. Antennal scapes and legs covered with short 

 slanting or appressed hairs. Pubescence very short, dilute, scarcely visible on 

 the thorax, most distinct on the gaster but not concealing the sculptui'e. 



Black ; mandibles, anterior border of head, antennje, legs, petiole, posterior 

 portion of thorax and the base of the first gastric segment, deep red. Posterior 

 borders of gastric segments dark brown. In some specimens, the posterior por- 

 tions of the thorax, the mandibles, anterior portion of the head, the antennal 



