PRELIMINARY LIST OF THE LEPIDOPTERA OF MALTA. 319 



with the species in the larval state, when it was feeding on ivy at 

 Boschetto. Mr. Matbew also [in litt.) notes its occurrence at the 

 same locality. 



976. Pachyfiastria trifolii, Esp. — Larvae are abundant in the spring, 

 spinning up about the first week in April. The moth occurs in the late 

 summer and autumn. Mathew notes a specimen (taken on October 26th) 

 as probably referable to var. iberica, Gn. 



1152. Agrotis [Tripluena) pronuha, Linn. — Not common. Occurs in 

 April and May. 



1345. A. imta, Hb. — Common at light in October, 1903. 



1399. A. ijpsilon, Eott. {suffHsa, Hb.). — One specimen on Corradino 

 Hill, February 24th, 1902. Mr. Mathew also took one. 



1400. A. seqetiim, Schiff. — Probably common throughout the sum- 

 mer. June 5th and October 22nd, 1902. 



1401. A. tru.v, Hb. — One specimen; June 13th, 1902. It seems 

 referable to var. tcrranea Frr. 



1402. A. smicia, Hb. — One specimen ; March, 1897 (Mathew). 

 1405. A. crassa, Hb. — One specimen; to light; October 10th, 1903. 

 1477. Mamestra trifolii, Eott. — One specimen ; Argotti Gardens ; 



October 3rd, 1903. 



1599. Bryoplida muralis, Forst. — Larvfe common on lichen- covered 

 walls, the moths appearing in July and August. CittiaVeccliia (Mathew) ; 

 Argetto Gardens. 



1600. B. perla. — Previously recorded from Malta in error, the 

 specimens being referable to the preceding species. 



1610. Diloba caruleocephala, Linn. — The larvfe are abundant on 

 fruit-trees in spring, and pupate about the first week in April. The 

 moth does not appear to have been noticed at large. My bred speci- 

 mens emerged in December, and only then when the pupae were 

 damped, so it seems probable that in its natural state the imago does 

 not emerge before the autumn rains. This extended pupal period, if 

 my theory be correct, precludes ovipositiou from taking place until the 

 end of the year, when the fruit-trees are again coming into leaf, thus 

 insuring a provision of pabulum for the young larvje on emergence. 



1664. Hadena solieri, Bdv. — Common in November. Comes to 

 light freely. 



1787. Folia canescens, Dup. {xanthomista, Hb., var.; nigvocincta, 

 Tr. (Mathew) ). — The larvae occur in December and January on various 

 flowers, especially those of a sweet-smelling narcissus. The moth 

 appears in October (Mathew). 



2181. Calocaiiipa exoleta, Linn. — The larvfe are common in spring, 

 especially on Oxalis, and pupate in March. The moth appears in July. 



2327. Heliothis aniiigera, Hb. — Generally common from March 

 onwards ; but this species seems to be one whose abundance is very 

 intermittent. In some years it is common, even abundant ; in other 

 years scarcely one is to be seen. 



2380, Acontia luctuosa, Esp. — Common from April to June, and 

 again in October. 



2428. Thalpochares ostrina, Hb. — Common in March and June. As 

 a general rule, March specimens seem referable to var. (Bstivalis, Gn., 

 and June examples to var. caithami, H.S. ; but intermediate forms occur. 



(To be continued.) 



