Pheidole susannae, Forel, r. obscurior, Forel

Forel, A., 1893, Formicides de l'Antille St. Vincent. Récoltées par Mons. H. H. Smith., Transactions of the Entomological Society of London 1893, pp. 333-418 : 410-411

6. Pheidole susannae, Forel, r. obscurior, Forel ,

[[ worker ]] [[ soldier ]] [[ queen ]] [[ male ]]. (No. 31 a a 31 d et " plantations de cocos ").

[[ queen ]] (inedite). L. 6, 2 mill. Tete plus reticulee que chez le [[ soldier ]], un peu echancree derriere; les rides de la tete se prolongent sur l'occiput. Mesonotum et cotes du metanotum rides en long; ces derniers en outre finement reticules-ponctues ainsi que les n oe uds du pedicule qui ont des rides transversales. Base de l'abdomen striee et mate (finement reticulee-ponctuee). Beste de l'abdomen presque lisse et luisant, avec des points piligeres. Epines du metanotum mediocres; entre elles quelques rides transversales; face basale et face declive du reste lisses et luisantes. Thorax et abdomen, plutot eleves, non deprimes; thorax-plus large que la tete; abdomen grand. D'un brun noiratre; mandibules, articulations et funicules roussatres; tarses jaunatres. Ailes subhyalines; nervures et tache marginale d'un brun jaunatre. Du reste comme le [[ soldier ]].

[[ male ]] (inedit). L. 3, 6 a 3, 7 mill. Mandibules triangulaires, bidentees. Un peu moins etroit que les precedents. Metanotum avec deux faibles bourrelets longitudinaux; face basale un peu plus longue que la face declive. Lisse et luisant. N'a pas la longue pubescence du [[ soldier ]] et de la [[ queen ]]. Pilosite dressee comme chez l'ouvriere.

D'un jaune brunatre sale. ' Tete d'un brun noiratre; dos du thorax presque entierement brunatre. Pattes, antennes et mandibules pales. Ailes comme chez la [[ queen ]].

(31). A rare species, forming large colonies. Formicarium generally in rotten wood. When disturbed these ants are rather pugnacious. The workers minor are active; the workers major move about heavily. The latter are not numerous.

(31 a). Wallilobo Valley (leeward), 500 ft.; forest near a stream. Formicarium in very rotten wood; the passages extended through six or eight inches of the log, with several chambers, each about 1 x 1 / 2 in. The colony probably contained over 1000 individuals. Immature males were numerous. Only a few females could be found. Nov. 8 th.

(31 b). Hermitage Estate, Cumberland Valley, 1000 ft. Dec. 1 st. Open hill-side near forest. Formicarium in a rotten stick on the ground. It extended irregularly through about 15 in. of the stick, with several chambers, each about 3 / 4 in. long, and half as wide and high. The colony may have contained 500 individuals, the workers major being about one-tenth as numerous as the workers minor. There were many immature males in this nest,. but I could find no female.

(31 c). Same locality and situation as the last, in another log. The nest did not differ from No. 31 b, except that the chambers were rather larger; the community probably contained over 1000 individuals. About twenty winged females were seen, but no males.

(31 d). Upper Richmond Valley, 1500 ft.; forest by a stream; under rubbish near the water. No nest could be found.