SCIENTIFIC NOTES. 1B.3 



]\lYRiiEC0PHiLA FORMicARUM, Scuddei', is taken with Camponntm lacvi- 

 (jatiis, in California. Myrmecophila oregonensis, Brun., is found in 

 British Cokimbia, &c., with Formica neonifibarbis. Myrmecophila 

 NEBRAscENSis, Bruii., has been recorded with Formica rufa in Nebrasca 

 (it is, however, probably not F. rufa, as that species is apparently- 

 unknown in North America, but one of its allies), and under stones 

 with F. iwsectoides, in New Mexico. Myrmecophila nehawkae, Scudder, 

 is a very small species occurring with CromaMoi/axtcr lincolata, in Nebrasca. 

 Myrmecophila Columbiana, Sauss. — Mr. Burr possesses a specimen of 

 this species from Columbia, but I do not know the name of its host. 

 Myrmecophana fallax, Brun., is probably myrmecophilous, but its 

 host is unknown. This insect which is figured in the Cambrithje Nat. 

 Hist. Insects, pt. i., p. 323, bears an extraordinary resemblance to an 

 ant, when viewed from the side. There do not appear to be any 

 British records of Orthoptera taken with ants. 



JilOTES ON LIFE-HISTORIES, LARY^, &c. 



Eggs of Lepidoptera. — Larentia nohiliaria. — Oval, of ordinary 

 Geometrid shape ; length: breadth : height, as about 8:5:4; colour 

 pale straw-yellow, depressed on upper surface ; sculpturing very faint, 

 consisting of fine irregular polygonal pittings without any very definite 

 walls to the polygonal spaces to form a reticulation (Described 

 August 2nd, 1899, from eggs laid by a 5 captured at Simplon the 

 preceding day). 



Sctina aurita. — The most regular appear to be rather more than a 

 hemisphere in shape, with the base almost perfectly flat (others are 

 somewhat irregular owing perhaps to being pushed against others at 

 time of laying) ; they are of delicate texture, pale brown in colour, 

 mottled with darker brown (= embryo) ; the surface apparently quite 

 smooth and shiny, Avith only the faintest indication of vertical 

 ribbing at the rounded edge of the base ; the whole egg is very trans- 

 parent, and shows clearly the granular contents (Described August 

 4th, 1899, from eggs laid by female on setting-board, July 31st, and 

 captured at Simplon). — J. W. Tutt. 



Newly hatched larva of Agrotis agathina. — Young larva (hatched 

 September 19th, 1898) whitish-fuscous ; loops, but legs on the 3rd 

 and 4th, though smaller than those on 5th and 6th, abdominals, and 

 not used Avhen running quickly, are functional, and are used when 

 moving slowly ; when at rest the larva may use them or may sit up 

 Sphinx fashion. The crochets on prolegs on the 3rd, 4th, 6th, 6th, 

 and 10th abdominal segments are respectively 6, 8, 9-10, 10, 9-10 ; the 

 crochets are smaller on prolegs of 3rd and 4th segments. — T. A. Chapman. 



SCIENTIFIC NOTES. 



Thyreosthenius biovatus in nests of Formica rufa, and Tetrilus 

 arietinus in nests of F. rufa and Lasius fuliCtInosus. — Since my 

 former note {antea, p. 138) was written, I have again received T. hiovatm 

 (both sexes adult) from Mr. Donisthorpe, by whom they were found in 

 nests of the same species of ant [Formica rufa) at Oxshott. Also from 

 the same locality an adult and an immature male of a most remarkable 

 spider of the family A(jelenidae, Tetrilus arictimts, Thor. One of these 



