1889.] 347 



From the ensemble of characters Jiispanus appears to differ from libel- 

 luloides in its broader and shorter wings, on which the dark markings 

 are more pronounced, and the irrorations on the anterior more nume- 

 rous. On the posterior the isolated rounded sub-basal spot is, on the 

 whole, much larger (in libelluloides it is sometimes reduced to a mere 

 point ; it is usually largest in the small form known as cescJinoides) . 

 Furthermore, the abdomen in Jiispanus appears to me shorter than in 

 libelluloides, especially in the $ ; and in Jiispanus it is broadly and 

 transversely banded with black, whereas in libelluloides it has black 

 longitudinal lines, nevertheless, the two styles of markings may be 

 considered modifications of one. This black transverse banding I hold 

 as of great importance in separating the two,, and it is constant and 

 conspicuous, except in examples that have become discoloured by de- 

 composition. But Kolbe's paper raises a difficulty. He had seen two 

 pairs from Marocco, which he refers to libelluloides and Jiispanus re- 

 spectively, on account of the inferior appendage of the $ , and in the 

 pair referred to libelluloides the wings are said to be appreciably 

 broader and shorter than in those referred to Jiispanus ; moreover, the 

 markings of the abdomen are as in Jiispanus. Here I must leave the 

 question. I do not possess libelluloides from Africa, and have seen no 

 £ with short and broad wings and banded abdomen that I can refer 

 to libelluloides. The species certainly occurs in north-eastern Africa 

 {cf. Savigny, Descript. de l'Egypte ; the figure probably indicates the 

 slight variety known as cescJinoides) . 



Formicaleo annulatus, Klug ?, Eamb. ?. — Benzus Bay, 25th July and 

 28th August ; 2 examples. The determination is doubtful, but possi- 

 ble, especially as regards Hambur's species from Andalusia, the type of 

 which no longer exists. 



Macronemurus appendiculatus, Latr. — Tetuan, 20th June ; 1 $ . 



\_Macronemurus, sp. n. — Tangier, BlacJcmore ; 1 $ . Allied to appendi- 

 culatus, but certainly distinct on account of the neuration being 

 entirely pale, and the abdomen mucJi sJwrter when compared with 

 males of appendiculatus of the same expanse. I hesitate to describe it 

 without having more materials.] 



Myrmeleon distinguendus, Eamb. ?. — Esmir, 25th July ; 1 example. 

 I consider the determination very probably correct, but the only 

 other example before me is one from Portugal (presumably ; cf. Journ. 

 Linn. Soc, Zoology, xvi, p. 172), which is scarcely typical. 



N.B. — It is most unfortunate that the obscure Mediterranean 

 Ant-Lions usually arrive as only isolated individuals, and often in 

 indifferent condition. 



