Q [January, 



sides nearly straight and parallel, posterior angles marked ; finely alutaceous and 

 moderately closely sprinkled with minute asperities ; with a broad depression 

 at base. Elytra about the length of, and slightly broader than, thorax ; 

 alutaceous and thickly covered with little asperities, far more sti'ongly 

 sculptured than thorax. Abdomen slightly narrowed from middle to apex ; 

 punctuation fine and very sparse at base, getting less towards sixth segment, 

 which (except sometimes at apex) is practically smooth ; last segment 

 asperately punctm-ed. Male with apex of seventh dorsal segment strongly 

 emarginate, generally in the segment of a circle but sometimes nearly 

 angularly, the emargination being more or less obsoletely crenulate. Female 

 with apex of seventh dorsal segment slightly and simply emarginate ; fourth 

 joint of antenna; a little longer proportionately than that of the male ; otlier- 

 wise there appears to be no visible difference between the sexes. Length, 4 mm. 



Tliis insect has occasionally occurred to nie in flood-ruljliish at 

 Buckfastleisj;li and Christow, and to Mr. S. Gr. Kendel at Tiverton ; in 

 rill moss at S. Brent and Loddiswell ; and, more freely, in a swamp at 

 Dawlish — this particular spot is, unfortunately, now useless. On 

 showing it to Mr. Newbery he suggested that the species was 

 H. aquatil'is, Thorns., and, later on, Dr. Cameron kindly submitted 

 specimens to Dr. Bernhauer who has confirmed the name. From 

 if. aquatica, which perhaps it most resembles, the present species can 

 be roughly distinguished by the longer antennae, broader front parts, 

 and shorter elytra, as well as by the ^ characters. It has also con- 

 siderable relationship to H. graminicola, in the same group {Liocjhda) 

 with which it is placed by Thomson. 



8, Queen's Terrace, 



St. David's, Exeter : 

 November 22nd, T912. 



APTEROUS FEMALES OF CERTAIN LEPIDOPTERA. 

 BY T. A. CHAPMAN, M.D., F.Z.S. 



I have taken considerable interest in Mr. Hudson's notes on this 

 subject, in the last two numbers of the Ent. Mo. Mag., having 

 attempted an explanation of the known facts in a short paper which 

 Mr. Hudson does not appear to have seen, which I conuuunicated to 

 the Entomologists' Kecord some ten years ago (Vol. xv, p. 43). 



As others may be ignorant of my views, a brief comparison of 

 them with the conclusions arrived at by Mr. Hudson may be of use. 



On the fundamental point we are in absolute agreement, that is, 

 that the dominating circumstance is that the moth may be enabled 

 to lay her eggs in the proper place. 



