148 THE entomologist's record. 



species of Citrus ; besides many others. The following day at 3 p.m. 

 we were in our deck chairs pondering over some of the experiences, 

 which, if not thrilling, were at least intensely enjoyable. The visit 

 lasted from August 12th- 30th (1898). 



Contribution to the Life=history of Tinea vinculella var. leopoldella. 



By A. BACOT. 

 The CASE is about one-quarter of an inch in length, almost flat 

 ventrally, curved on dorsal aspect, becoming rounded and broader at 

 the ends, and widening out centrally ; the greatest width about one- 

 eighth of an inch and the greatest thickness (dorsal to ventral aspect) 

 about one-sixteenth. The case opens at either end beneath ; the 

 doors, which are formed by a continuation of the ventral portion of 

 the case, are closed against the under surface of the broadened and 

 rounded ends. The case is composed of fine whitish silk covered with 

 small grains of sand, lichen, &c., which are cemented or otherwise 

 attached to the silk. The case, as previously mentioned, is double- 

 ended, and either door can, I believe, be opened at will, but, so far as 

 observation goes, I have not seen this done in actual practice. Owing 

 to the flatness of the ventral surface a large amount of dorsal over- 

 lap occurs at the ends ; the case can be drawn very close to its 

 resting-surface, and the doors even if open are securely hidden. 



The LARVA is just upon three-sixteenths of an inch Avhen fully 

 stretched (? not quite full grown), but, unless attempting to crawl (on 

 glass), it lies in a curved cramped position with the dorsal area arched 

 and the thoracic segments drawn up. The ventral area of the ab- 

 dominal segments is flat, the dorsal area curved. The larva, as a 

 whole, is grub-shaped, very like the larva of a Psychid. The pro- 

 thorax is long and narrow, the second and third thoracic segments and 

 first and second abdominal segments widen gradually ; behind the 

 second abdominal segment the larva swells out suddenly, tapering 

 gradually towards the anus and ending rather abruptly in a rounded anus. 

 The swollen third to ninth abdominals are of a bright orange colour, 

 the thoracic and first two abdominal segments pale whitish or drab, 

 but with no trace of orange-yellow. The head is rather long and flat, 

 the clypeus extends upwards or backwards to near the crown of the 

 head, above its apex the division of the lobes is distinct. The antennae 

 are rather long and prominent. The colour of the head is dark brown, 

 slightly paler near the crown, the surface glazed ; it bears a few fine 

 hairs. The head appears to be partly retractile, but now that the 

 larva is out of its case it docs not retract it. The prothorax is glassy 

 and horny, rounded in front and tapering behind before it joins the 

 mesothorax, giving the larva an unusual and peculiar appearance. The 

 prothorax is pale in front and brownish behind ; in its centre (dorsal 

 area) there is a dark brown, almost black, heart-shaped blotch, with 

 its apex to the front. About the middle of the prothorax, on the sub- 

 dorsal (lateral) area is situated a pair of -long hairs (one much longer 

 than the other) ; this long hair has a large cone-shaped tubercular 

 base (dark coloured). The long hair arising from this tubercle is 

 movable at will, and is used apparently as some kind of sense-organ 

 (possibly analogous with a cat's whiskers) ; it is used to touch the 

 surface in front of the larva, on which it will shortly crawl. The true 

 legs are fairly strong and serviceable. The first pair short, the second 



