42 William Morton Wheeler 



just in front of its articulation with the first gastric segment. Gaster 

 and legs of the usual shape. 



Mandibles coarsely striato-punctate. Head opaque, finely reticulate 

 punctate; the cheeks indistinctly longitudinally rugose in front. Pro- 

 notum with coarse, arcuate rugse, concentric with its hind margin; 

 mesonotum, mesopleurse, base and sides of epinotum more finely 

 longitudinally rugose; the rugse on the epinotal declivity being trans- 

 verse and continuous with the longitudinal rugse on the sides. Petiole 

 coarsely longitudinally rugose. Postpetiole and gaster smooth and 

 shining. 



Hairs sparse, erect; most conspicuous on the mandibles, clypeus, 

 upper surface of the body and lower and apical surfaces of the gaster; 

 sparser and less conspicuous on the legs. 



Color black; covered in great part with a silvery air-film. 



Described from a single specimen (X 8) in the Klebs Coll. 



This species may be readily distinguished from all the other 

 amber species by its beautiful sculpture and from all except S. ocellata 

 Mayr by possessing ocelli. 



Sinia ocellata Mayr. 



S'ma ocellata Mayr, Beitr. Nalurk. Preuss. I, 1868, p. 101, Taf. V, Figs. 104, 105, $; 

 Dalla Torre, Catalog. Hymen. VII, 1893, p. 54; Handlirsch, Foss. 

 Insekt. 1908, p. 872. 



This is the largest of the species of Sima described by Mayr, 

 the worker measuring 7,2 — 9,4 mm. Like the preceding it possesses 

 ocelli. The first funicular joint of the antennse is shorter than the 

 second and third joints together. 



I have seen only two specimens, Mayr's type (No. 204/3856) in 

 the Geolog. Inst. Koenigsberg Coll. and one, without a number, but 

 labelled ^^Myrmica von Bronsart" in the Berlin Museum. The latter 

 specimen measures only 6 mm and is in the midst of a brown cloud. 

 The three ocelli, however, are very distinct. 



Shna simplex Mayr. (Fig. 11.) 



Sima simplex Mayr, Beitr. Naturk. Preuss. I, 1868, p. 102, $; Dalla Torre, Catalog. 

 Hymen. VII, 1893, p. 55; Handlirsch, Foss. Insekt. 1908, p. 872. 



Two workers in the Klebs Coll. (K. 944 and K. 929) are 6 mm 

 in length and agree very closely with Mayr's description of this species, 

 which is characterized by the absence of ocelli, in having the man- 

 dibles broader at the masticatory border than at the base, and in having 

 the first funicular joint of the antennse shorter than the two succeeding 



