298 



COLEOPTERA 



CHAP. 



at all clear that the minute knot he considered the third joint is 



more than the articulation 

 of the elongate terminal 

 joint. The family consists 

 only of two or three species 

 of Aglycyderes, one of which 

 occurs in the Canary 

 Islands, and one or two in 

 New Zealand and New 

 Caledonia. The former is 

 believed to live in the stems 

 of Euphorbia canariensis ; 



FIG. 151. Aglycyderes setifer. Canary Islands, a New Zealand species has 

 A, Imago ; B, tarsus according to Westwood : -i x> j j.- 



C, according to nature; D, maxilla; E, been foimd m Connection 



labium. with the tree-fern Cyathea 



dealbata. 



Fam. 85. Proterhinidae. Tarsi three-jointed, the second joint 

 lobed ; head of the male scarcely prolonged, but that of the female 

 forming a definite rostrum.; maxillae and ligula entirely covered 

 by the mentum. As in the preced- 

 ing family the sutures on the 

 under side of the head and pro- 

 sternum cannot be detected. The 

 minute palpi are entirely enclosed 

 in the buccal cavity. There is a 

 very minute true third joint of 

 the tarsus, at the base of the ter- 

 minal joint, concealed between the 

 lobes of the second joint. The 

 family consists of the genus Pro- 

 terhinus ; it is confined to 

 Hawaiian Islands, where these In- 

 sects live on dead wood in the 

 native forests. The genus is numerous in species and individuals. 



Strepsiptera (or Rhipiptera, Stylopidae). Male small or 

 minute; prothorax extremely small; mesothorax moderate, the elytra 

 reduced to small, free slips ; metathorax and wings very large ; 

 nervuration of the latter radiating, without cross nervules. Female 

 a mere sac, with one extremity smaller and forming a sort of neck 

 or head. These curious Insects are parasitic in the interior of 



the FIG. 152. Proterhinvs Jecontel. Ha- 

 waiian Islands. A, Male ; B, female ; 

 C, front foot, more magnified. 



