IDIOVALGUS. 



231 



2 . More stoutly built, with the tarsi shorter, the scutellum 

 occupying a depression, and the pronotum distinctly lobed behind. 

 Only one species of the genus is known. 



212, Idio valgus planicollis. 



Oreoderus planicollis, Gestro,* Atin. 3Ii(S. Genova, (2) x, 1891,. 

 p. 862. 



Bright reddish yellow, with tlie head and prothorax sometimes 

 darker. 



It is a rather small but stoutly built insect. The head is 

 granulated and the dijpeus rounded in front. The j^^'onotum is 

 also granulated and has a very slight median groove, not bordered 

 by carinas, and an impression on each side. It is gently convex, 

 a little longer than it is broad, rounded at the sides and base, and 

 about equally narrowed in front and behind. The elytra are 

 distinctly striate-punctate, with the sides closely rugose. The- 

 propygidium is simple, with a straight margin. 



Fig. 53. 

 Idiovalyus planicollis, male. 



Fig. 54. 



Idiovalgus 2}J((iiicollis 



female. 



S. The body is partially clothed above and below with pale 

 yello^^• scales, Mhich are dense round the scutellum and upon the 

 pygidium and propygidium. The pygidium is vertical. 



$ . The body is very shining above and beneath and only thinly 

 and partially clothed with short, silky golden hairs. The scutellar 

 region is strongly depressed and overhung by a ■well-marked broad 

 and rounded lobe at the hind margin of the pronotum. The 

 pygidium is protuberant and has a broad ventral face. The hind 

 legs are very short. 



Length 5 mm. ; breadth 3 mm. 



Burma : Teinzo {L. Fea). 



Type in the Genoa Museum ; cotypes in the British Museum. 



This curious little insect was found digging in the sandy bed of 



dried-up torrent. 



