52 THE ENTOMOLOGIST. 
fourth the length of the cauda, cylindrical but irregular, and. corru- 
gated at the edges. Legs pallid, moderately long and thick; tibize 
with many short, pale hairs; tarsi smoky. The whole body is 
elongated and rather narrow. 
Length, 2°2 mm. 
Locality.—Porlock Weir, Somerset, May 14th, 1915. 
Taken by Mr. W. C. Crawley in a nest of Lasius niger. 
Described from a perfect apterous viviparous female, which I 
have placed in a new genus which comes near Hyalopterus. 
The most marked characters are the sensoria on the third an- 
tennal segment, the long, large cauda, and the short, somewhat 
corrugated cornicles. 
Tycheoides eragrostidis, Passerini.—Five apterous females 
and six nymphs taken in a Lasius alienus nest at Seaton, Devon, 
June 28rd, 1912. ‘The proboscis, however, only reaches just 
past the second pair of legs ; in others I have seen it reaching past 
the third pair; whilst in the young it is longer than the body. 
Tycheoides setulosa, Passerini.—Three apterous viviparous 
females taken by Crawley at Porlock with Lasius flavus, May 1st, 
1915. 
Trama troglodytes, Heyden.—One apterous female taken at 
Porlock (April 28th, 1915) by Mr. Crawley with Lastus niger. 
To some extent this answers to Del Guercio’s T'rama horvathi, 
which I do not think is a valid species. 
Trama radicis, Kaltenbach.—Seven apterous females, Porlock, 
with Lasius flavus and niger, April 18th, 1915, May 14th, 1915. 
Other aphides received in tubes from Porlock and elsewhere 
from ants’ nests : 
Tycheoides setari@, Pass.—In nests of Tetramorium cespitum, 
Lasius niger and flavus, Porlock, 1915, at Woking (May 24th, 
1913) and Weybridge (April 14th, 1914) with Lastus umbratus. 
Forda formicaria, Heyden.—In nests of Lasius niger, dark 
green, and L. flavus, apterous females and nymphs, Porlock, 
1915, at Weybridge, in ants’ nests, April 14th, 1914. 
Trama radicis, Kaltenbach.—In nests of Lasius niger, Por- 
lock Weir, April 28th, 1915; apterous ? ¢ and nymphea, and 
with L. flavus, April 18th, 1915. 
Tetraneura ulmi, Linn.—With Lasius flavus, Porlock, May 1st, 
1915. With Myrmica scabrinodis, Oddington, Oxford, August, 
1900, and with Myrmica ruginodis, Porlock, April, 1911. 
Aphis plantaginis, Schrank.—With Lasius flavus, Porlock 
Weir, April 28th, 1915. Apterous ° ¢. 
Lachnus (sp. ?).—Immature forms bred from eggs found in 
nest of Lasius flavus, Porlock, April 21st, 1915. 
Geoica carnosa, Buck.—With Tetramorium cespitum, Hurl- 
stone Point, May 8, 1915; with Lasius flavus, Porlock Weir, 
May 14th, 1915, and Porlock, May 1st, 1915. Apterous ? ?. 
Forda viridana, Buck.—With Lasius flavus, Porlock Weir, 
May 1st, 1915. Apterous 2 ¢. 
