MYOPOPONE. 33 



Genus MYOPOPONE. 



Amblyopone, Smith (nee Erichs.), Jour. Linn. Soc. \ (1860), p. 105, 



pi. I, tig. 6, $ . 

 Myopopone, Roger, Berl. ent. Zeit. v (1861), p. 49, . 



Type, M. castanea (var. maculata), Smith, from Ceylou. 



Range. Indo-Malayan region. 



. Head broad, very thick and massive, convex below and 

 above ; mandibles porrect, linear, as broad at apex as at base, the 

 apex with three teeth, the inner margin with a single row of stout 

 teeth ; clypeus narrow, transverse, overhung by the broad laminate 

 portion of the antennal carinae, which cover the base of the 

 antennae. Antennas 12-jointed, short, thick, flattened and in- 

 crassate towards the apex of the flagellum ; eyes minute, lateral, 

 placed rather high up on the sides of the head, the distance 

 between the eyes and the base of the mandibles being greater 

 than between the eyes and the top of the head. Thorax tiattish 

 above, laterally compressed, the sides, at least of the metanotum, 

 more or less vertical, the pro-meso- and meso-metauotal sutures 

 deeply marked and approximate ; the mesonotum narrow but 

 distinct ; the metanotum obliquely truncate at apex, the basal 

 portion passing into the apical portion by an acute curve, the 

 apical face flat, submargined at the sides ; legs moderately long 

 and stout, the femora compressed, the tibiae cylindrical, posterior 

 pair with two calcaria. Pedicel one-jointed, large, on a level with 

 the abdomen, anteriorly truncate and slightly concave, posteriorly 

 joined to the abdomen by the whole of its posterior face ; abdomen 

 cylindrical, tapering gradually to the apex, the constriction between 

 the basal two segments well marked; sting long, exserted. 



$ . Similar to the $ , the thorax and abdomen more massive. 

 In the former the pronotuin is short with the lateral angles 

 rounded, the mesonotum broad and flat, longer than the pronotum, 

 scutellum not gibbous, postscutellum narrow, transverse ; median 

 segment short, truncate posteriorly, the sides passing by an acute 

 bend into the apical face ; legs, pedicel, and abdomen as in the . 

 Wings hyaline, slightlv fulvo-fuscous. 



Habits and nests of the two recorded species of this genus 

 unknown. The species of the genera Myopopone, Mystrium, 

 Amblyopone, and Stiymatomma in form seem allied to the 

 Thynnidce and Scoliidce of the Fossorial Hymenoptera. 



Key to the Species. 



a. Entirely castaneous red M. castanea, p. 33. 



b. Black, with the tibiae and tarsi and a portion of 



the apex of the abdomen ferruginous M . moelleri, p. 34. 



38. Myopopone castanea, Smith (Amblyopone), Jour. Linn. Soc. v 

 (1860), p. 105, pi. i, fig. 6, ; For el, Jour. Bomb. N. H. Soc. xiii 

 (1900), p. 54, $ $ . 



Myopopone maculata et rufula, Roger, Berl. ent. Zeit. v (1861;, 

 pp. 50, 51 & 62, g & $ & rf 



