488 Charles Brongniart — Fossil Insects of the Primary Jtocks. 



head, whilst the mesothorax and the metathorax are much broader 

 and longer. The legs are short and thick, and seem to be furnished 

 with spines. As to those special organs which Goldenberg has de- 

 scribed near to the mouth of the insect, I have not been able to find 

 them on my specimens, which are notwithstanding very well 

 preserved. On the other hand, the abdomen bears at its extremity 

 two recurved appendices. 



2. The genus Scudderia (mihi) is proposed for an insect whose 

 neuration is different from that of Eugereon, and which is of larger 

 size, the wing measuring nine centimetres in length. 



3. I have given the name of Megaptilus Blanchardi to the large 

 wing that I previously supposed must have belonged to Titanopliasma 

 Fayoli. Its neuration recalls that of Eugereon and of Scudderia. It 

 must have measured 18 to 20 centimetres in length and five centi- 

 metres in breadth. Therefore it must have been borne by an insect 

 of considerable size. 



4. Haplophlebium Barnesii and H. longipennis of Scudder will take 

 their place here. 



5. Then will come Goldenhergia of Scudder and Dictyoneura of 

 Goldenberg. 



I place in the genus Goldenhergia the following species : — 



Ternies Heeri, Goldenberg. 

 ,, affinis, „ 



,, contusa, Scudder. 



,, longitudinalis, ,, 

 Termitidium amissum, Goldenberg. 

 Dictyoneura Becheni, ,, 



Dictyoneura Humboldtimm, Goldenberg. 



,, anthracophila, ,, 



,, elegans, ,, 



,, elongaia, ,, 



,, Smitzii, ,, 



,, obsoleta, ,, 



,, sinuosa, Scudder. 



The genus Dictyoneura, Goldenberg, will comprehend the D. Golden- 

 lergi (mihi), D. Ubelluloides, Gold., D. jucunda (Scudder). 



The body is short and thick, the head large, the thorax has the 

 three segments nearly equal and much raised, nevertheless the pro- 

 thoi'ax is narrower. The abdomen measures 45 millimetres in length, 

 and is terminated by two long multi-articulate filaments, and by two 

 recurved hooks ; moreover, some foliaceous appendages are observed, 

 borne by the antepenultimate ring. The legs are short, strong, 

 angular, and spined. The wings are not very wide (25 mm.), and 

 have a very distinctive neuration. The reticulation recalls that of 

 the preceding genera ; the wings were traversed by coloured bands. 



The second family, that of the Hadrobrachypoda (mihi), comprises 

 two genera, the Miamia (Scudder) (M. Bronsoni) and the Zeptoneura 

 (mihi), L. Oustaleti, L. delicatula, L. robiista, L. elongata (mihi). 



All these insects have a very distinctive fades. They somewhat 

 resemble the living Termes, but, nevertheless, they cannot be ranged 

 in the same group. It would not appear to me an exaggeration to 

 say that they are ancestral types of Termes. 



The head is pretty broad, armed with strong mandibles, the 

 antennas are short, the legs are short and squat, the wings are 

 elongated, a little sickle-shaped, and traversed by fine nervures. 

 Some wings are still tinted by a rather clear brown pigment. 



The third family of these Palseodictyoptera includes some insects 



