24 



of the dorsum ; second segment, on each side, bearing a subdorsal cluster of three 

 tubercles, a suprastigmatal cluster of five, below which is a pair of tubercles, and 

 there is also a single tubercle situated between the subdorsal and suprastigmatal 

 clusters; third segment on each side bearing a subdorsal and a suprastigmatal 

 cluster of three tubercles, while between these two clusters, and also below the low- 

 est one, is a pair of tubercles; fourth segment, on each side, bearing a subdorsal 

 and a suprastigmatal cluster of three tubercles, and below the latter is a pair of 

 tubercles, the anterior of which is smaller than the posterior one; segments five to 

 eleven are the same as the fourth; all of the tubercles above described are black; 

 twelfth segment, on each side, bearing a pair of subdorsal and a widely separated 

 pair of stigmata! bristles; head polished black. 



I was unable to carry these larvae any further, owing to the invasion 

 of the mites above referred to. Two of the beetles were destroyed by 

 internal parasites, as already stated on a previous page of this report; 

 the remaining beetles died without depositing eggs, and as no more 

 specimens of this insect were received from Australia subsequently, I 

 was unable to obtain any more eggs of this species and thus complete 

 its life history. 



The beetles were received at the same time as the Leis conformis above 

 described, and were treated in the same manner as the latter. They 

 were not as lively as these and did not deposit eggs so readily in con- 

 finement. Both the adults as well as the larvae fed greedily upon the 

 Aphides which I introduced into their breeding cages. 



Thalpochares cocciphaga. — Egg. — Turnip-shaped, being twice as broad as high, 

 attached at one end, the upper end rather deeply concave and furnished with a small 

 rounded tubercle in the center; surface covered with irregular raised lines which 

 encircle the egg, besides others which extend vertically, these lines forming shallow 

 cells of various shapes and sizes; diameter, nearly | inui . Deposited singly. 



Larva. — First stage. — Body whitish;, head grayish-black; cervical shield dark 

 gray; provided with six thoracic, four abdominal, and two anal legs, the abdominal 

 legs located on the eighth and ninth segments; these as well as the anal prolegs are 

 extremely short, but are encircled with minute hooks at their tips. 



Full-grown larva. — Body very robust, dull white, usually with a tinge of yellow or 

 pink; piliferous spots indistinct, pale brown ; spiracles yellowish ; head and cervical 

 shield blackish-brown; no anal plate; legs as in the first stage; length, 8 mm . 



Chrysalis. — Of the usual form, light yellowish-brown; destitute of transverse rows 

 of teeth-like processes ; posterior end rounded and bearing a transverse, slightly 

 curved row of six rather short, recurved spines. 



Shortly after issuing from the egg the larva spins around its body an 

 oval case of light gray silk, which it drags around after it when crawl- 

 ing about in search of food. This consists of the younger specimens of 

 Lecanium olece, and perhaps also the young of other kinds of Coccids. 

 As the larva increases in size it enlarges its case by the addition of new 

 material, and it frequently attaches to the outside of its case fragments 

 of the scales, besides various other small objects, these being so small 

 in size as to be scarcely noticeable except upon a close inspection. The 

 case is closed at one end, while at the opposite end is a somewhat 

 square opening, out of which the larva protrudes its head and the fore 

 part of the body when feeding or when moving about upon the tree. 

 Each of the four sides of this opening is furnished with a rounded silken 



