ABT. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS PARKER 13 



carinate on median line at base but not markedly depressed on either 

 side the midline at base; mandibles dentate; proboscis long, not 

 wholly concealed when folded behind the labrum; maxillary palpus 

 composed of five segments, labial of three ; propodeum narrower than 

 the thorax, its posterior-lateral angles narrowed and reduced ; middle 

 coxa of male provided with a relatively long, curved tooth; middle 

 femur of male below at apical end provided with stout, flat tooth; 

 second and sixth sternites of male plain ; eighth sternite of male ends 

 in short, stout, curved spine; seventh tergite of male unusually broad, 

 bearing short, stout, lateral spines, the medial portion deeply and 

 roundly emarginate; spatha of male genitalia as in Figure 77; vena- 

 tion of wings similar to that found in the genus Stictia. 



THERAPON CHILENSIS (Eschscholz) 

 Figures 19, 20, 76-79 



Stictia chitensis Eschscholz, Xaturw. Abh. Dorpat., vol. 1, 1823 (Entomojn'aph. 



1822), p. 150. 

 Monedula d'OrMgnii Bubmeister, Bol. Acad. Nac. Cordova, vol. 1, 1874, p. 116. 

 MorieduUi clvilen»is Handltbsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. <'I., 



vol. 99, 1890, p. 132.— Dalla Torbe, Cat. Hym., vol. 8, 1897, p. 497. 



I have examined five males and three females of this species, of 

 which Handlirsch in his monograph has given an excellent detailed 

 description. The middle tibia of the male has the anterior apical 

 border drawn out into a short spinelike process such as sometimes is 

 found on species of Beiribix. Three specimens from Chile, one female 

 and two males, of which one is unusually small, have the dorsum of 

 the thorax and propodeum, except for very small spots above the base 

 of the wings, wholly black and the maculations on the sides of the 

 thorax and propodeum greatly reduced or lacking. The remaining 

 specimens, two males and two females from Argentina and one male 

 from Chile, all have conspicuous lateral spots on the scutellum and 

 well developed maculations on the sides of the thorax and propodeum.. 

 The pubescence on the thorax* and propodeum is long, dense, and 

 white but on the abdomen it is almost lacking. The seventh tergite 

 of the male in this species is relatively broader than in any other 

 species known at present. The lateral spines of this tergite are short 

 and stout and the apex of the median part is strongly and roundly 

 emarginate. 



SPECIMKNS ES.\MINF.D 



Aegentina: Bahia Blanca. 



Chile: Santiago (1923, Father C. Jo.«:eph) ; (E. C. Reed). 



The species has been reported also from Peru, Patagonia, and La 

 Plata. 



