-, , . Günther Enderlein, 



on the coffee-trees introduced long- ago from Ceylon. Perhaps they are also introduced in 

 Ceylon. Atropos oleagina occurred in Ceylon, and was stated to have been imported with oil- 

 cake from England; but there is no evidence that the species is British. Other species of 

 . ttropos and Psocus occur in many parts of the world. The curious instance that R. eclipticm 

 has aborted wings, like most of the Kerguelen insects, would in this case not be a certain 

 proof for the habitat. But it is certainly not impossible. 



Notes. 



Note i. As the presence or the absence of the ocelli is a very important character, 

 I have spent a considerable time in examining those Organs. I confess that there are still 

 some doubts about this matter. In the middle of the head, and in the same direction with the 

 upper ends of the eyes, is a transverse air-bubble, or better, a hole filled with air, assuming 

 the shape of the cerebrum, narrower toward the middle from behind, rounded at the end. But 

 the two sides differ in shape. The left side is cylindrical, rounded at the outer end, with a cup 

 like a watch-glass, imitating well the Cornea of an ocellum ; the right side has a similar shape, 

 but the outer end is in some way extravasated, beginning from the place where on the left side 

 the cornea-like cup begins. The place filled with the extravasation is represented on the left 

 side by a hollow space, to be seen well marked in the interior of the head. A third anterior 

 ocellus is entirely wanting, although the parts are all (juite visible, and I see two little pro- 

 minences which would represent the beginning of the two nervous commissures encircling the 

 Oesophagus. Though the whole interior of the body is transparent, and the digestive organs 

 are quite visible, I cannot distinguish anything belonging to the nervous System, not even the 

 ganglia; probably they are too transparent. After all, I consider the above transparent, trans- 

 versal organ to be the cerebrum, and the ocelli as wanting, the more so since the Psocidae 

 known have either three ocelli or none, but never two. And even here, if the two posterior 

 ocelli only were represented , the}' are much more separated from each other than in any 

 species hitherto known 1 ). 



Note 2. The antennae were broken; on one side only eight joints remained, on the 

 other, twelve; but lying near by was the apical part of fourteen joints. The joints are covered 

 with numerous fine pores; but commonly one much larger pore on each side, below the middle, 

 is very conspicuous in the middle joints of the antennae, principallv in the sixteenth and pre- 

 ceding joints. Such a large pore contains the insertion of a sensitive hair." 



Troctidae. 

 Troctes Burm. 



divinatorius Müll, var. Kidderi Hagen, 1883. 



Atropos divinatoria var. Kidderi Hagen, Stettiner Entomol. Ztg., 1883, 44. Jahrg., S. 292 — 294. 



1. c. S. 292: 



„Unter den von Dr. Kidder auf Kerguelen-Insel 1882 im Februar gesammelten Insekten 

 befand sich ein Stück (Tr. divinatorius) zusammen mit Calycopteryx Moseleyi in demselben Glase. 



1) So large a number of joints in the antennae is onty to be found in species without ocelli. 



38 



