Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 7. (Budapest 1909)

Friese, H.: Die Bienenfauna von Neu-Guinea

280 dt h. friese the vertex, the face, and the clypeus have a distinct keel down the middle; the face is punctured, except in the centre; the clypeus is closely, irregularly, longitudinally striated; its sides and apex are bordered by distinct keels. The base of the mandibles in the centre is rugose, and bordered above and below Avith keels: the apex of the mandibles is oblique. Mesonotum and scutellum closely punctured; the scutellum is slightly depressed in the middle; the post-scutellum is armed with two spines, which are stout, straight on the inner side, rounded above on the outer. The basal area of the median segment is longitudinally striated the striae are more widely separated in the centre than at the sides. The legs are thickly covered with griseous pubescence ; the calcaria are dark rufous; the scopa has white, mixed with longer, black hairs. Abdomen shining; the basal four segments banded with green, mixed with yellow on their apices ; the basal band is narrower than the others; the segments are closely punctured except at the apex; the basal is covered with white, the apical segments with longer, black hair; the ventral segments are thickly covered with white hair. Median segment at apex closely punctured, except for a triangular smooth space at the top. The c(" is similarly coloured; the scutellum has the sides obliquely narrowed, and ends laterally in a short tooth; the scutellar spines are longer and narrower than in the J ; the hinder femora are greatly swollen ; on the basal part above are two curves, the basal being the shorter and straighter ; the tibiae are thickened, and broadly rounded on the outer side, the apex on the inner side is oblique ; the greater part of the tibiae behind, their apex, and the base of the tarsi are fulvous ; the tarsal spines are rufous.» Gazellen-Halbinsel auf Neu-Pommern. Xylocopa Perkinsi CAMER. 1901. — Xylocopa perkinsi Ç CAMERON, Proc. Zool. Soc. London, I. p. 243. «In Willey's «Zoological Results» (p. 388), Dr. Sharp has written the following remarks : — «Mr. B. C. L. Perkins has (Ent. Monthly Mag., Febr. 1899, p. 38) called attention to the very extraordinary symbiosis of the ? bees of the genus Koptorthosoma (Xylocopa) and certain Acarids; the bee being provided with a special chamber in the abdomen, which is tenanted by the Acari. The cf d" do not possess this structure. Mr. Perkins mentions the remarkable fact that in this species from New Britain the female is destitute of the special chamber, though it exists in the closely allied K. aestuans.