43 



It is, however, much more wrinkled and sculptured than any other 

 portion of the body. These eye-pieces move up and down in living 

 pupae during respiration and allow one to see the mesothoracic 

 spiracle underneath. The mesothorax possesses some well-defined 

 alar ridges and its caudal margin extends in a broad curve nearly to 

 the caudal margin of the metathorax. The large conical tubercles are 

 found caudad of the spiracles on abdominal segments 2-6. The body 

 of Lagoa crispata Packard, the only species studied, is strongly arched 

 on the dorsum of the abdomen and is short and thick-set. Its length is 

 about 18 mm. and the greatest breadth 10 mm. 



The following species was examined : 

 Lagoa crispata Packard. 



Family Eucleidae 



The Eucleidae retain the same movable segments as the family 

 Megalopygidae, which they strongly resemble. The pupae of Eucle- 

 idae, however, are usually only half the size of the latter, averaging 

 about 9 mm. in length. They also retain the same head sutures, but, 

 as in Prolimacodes, they often show a distinct furrow marking the 

 position of the lateral part of the fronto-clypeal suture. The eye- 

 pieces are identical with those described for Megalopygidae. The 

 size and arrangement of parts may be seen in Figures 19, 20, and 23. 

 In two of the genera studied, Sibine and Euclea, the maxillae, in ad- 

 dition to the usual cephalo-lateral extension found throughout the 

 family (Fig. 23), have peculiar modifications in the form of long 

 lateral prolongations extending to the antennae. Usually only the dis- 

 tal end of this prolongation is seen between the eye-piece and the an- 

 tennae, as in Figure 19, the dotted line showing the connecting part. 

 These two genera also have a distinct groove in each half of the max- 

 illae, into the caudal part of which the femur of the prothoracic leg is 

 fitted. The cephalic margin of the pronotum has a distinct median 

 notch, which makes it appear bilobed, and each lobe is prolonged 

 cephalad over the caudal margin of the head (Fig. 22). The meso- 

 notum is prolonged into a rounded or pointed lobe which reaches on 

 to the first abdominal segment. Only three genera were available for 

 study. These may be separated by the following table : 



a. Maxillae never with a lateral projection reaching to the antennae; 

 mesothorax with a strongly carinate median line ; caudal lobe of 



the mesonotmn broadly rounded Prolimacodes Schans. 



aa. Maxillae with lateral projections reaching to the antennae ; meso- 

 thorax never with a strongly carinate median line. 



b. Mesonotmn with the caudal lobe pointed Euclea Hiibner. 



bb. Mesonotum with the caudal lobe broadly rounded, almost trun- 

 cate Sihine Herricli-Schaeffer, 



