130 rJ"««. 



This insect presents us with a curious enigma. I shoiild have passed it 

 without any doubt as aeneipennis, but the aedeagus (fig. 46) is markedly 

 different, and does not agree with that of any other Helophorus. The legs are 

 perhaps a little longer and stouter than in the similar forms of aeneipennis. I 

 have only been able to find one specimen, but it is desirable to give it a name. 

 The suspicion that will be entertained is that it may be a phallic sport or 

 mutation of aeneipennis. Nothing of the sort has so far as I know been yet 

 recorded, and if the creature be such a sport, it opens a wide field for specula- 

 tion. The colour on the under surface is very dark, and the elytral flanks are 

 scarcely at all visible, in which it agrees with the corresponding variety of 

 aeneipennis. 



BrockeuLurst, March 20tli, 1915. In the pond on Balmer Lawn 

 that yields somewhere about 10 or 12 species of the //e/o^j/ioritii. On 

 the day in question very few Helophori could be found, thou<^h Berosus 

 was very abundant. 



30. — Helophorus ganglbaueri sp. n. 



H. crenatus Ganglb. Kaf. Mitteleur. iv, 1904, p. 171 ; Edwards, 

 Ent. Mo. Mag., 1908. p. 223 {nee Eey, 1884). 



This species is one that has not yet been found in England. My 

 reasons for concluding that it is not the original crenatus of Eey are 

 given (p. 271 last year) under the heading of H. crenatus. I base 

 the species ganglbaueri on four examples from Upper Italy sent to 

 Mr. Champion by G-anglbauer as H. crenatus, and quite agreeing with 

 his description ; whether they are the same as Key's crevattts of 1885 

 does not matter, but it is at best doubtful. 



These specimens are all females, of elongate, parallel, rather flat form, 

 6 mm. long by 3 broad, and are remarkable by the dense, even granulation of 

 the head and thorax, the palpi are long, the last joint of the labial pair larger 

 tha,n usual. The channel on the vertex is narrow but is perceptibly broader in 

 front. The thorax is a good deal narrowed behind, its greatest width in front 

 of the middle, the grooves are rather shallow, and somewhat narrow, the sub- 

 median and the sub-external very indistinct in front. The elongate elytra are 

 of a dirty yellow colour, with darker marks, some of which are vague. The 

 " unctures of the elytra are rather large, the series very regular, the interstices 

 broad, but little convex. The antennal club is infuscate, and also the tip of 

 th3 maxillary palpus. Legs pale yellow. On the underside the flanks of the 

 elytra are not at all visible. 



Monte Legnone (Ganglbauer in coll. Champion) . 



(To he continued.) 



