98 HYMENOPTEEA. 



Monedula, Latreille, Gen. Crust, et Ins. iv. p. 99 ; Handlirsch, Sitz. der k. Akad. der Wissensch. 

 Wien, 1887, p. 281. 

 A well-known genus, confined to the Nearctic and Neotropical regions. It has the 

 maxillary palpi six- and the labial palpi four-jointed ; the anterior ocellus reniform or 

 roundish ; and the maxillae short, not reaching near to the posterior legs. 



Vi. 



Monedula heros. (Tab. VI. fig. 21.) 



Bembex heros, Fabr. Syst. Piez. p. 222 \ 



Monedula heros, Handl. Sitz. der k. Akad. der Wissensch. Wien, xcix. p. 108 2 . 



Nigra, argenteo-pilosa, labro (medio nigra) maculisque 10 abdominis albidis ; alis hyalinis, fere fusco-tinetis. 

 Long. 23-25 millim. 



Hab. Mexico, Ventanas in Durango 2000 feet (Forrer), San Bias in Jalisco, Navarrete 

 in Tepic (Schumann) ; Guatemala, Champerico (Champion) ; Nicaragua, Chontales 

 (Janson) ; Panama (Boucard). — South Amekica x , Brazil 2 , Monte Video 2 . 



Antennse pruinose, rufous on the underside towards the apex ; the third joint nearly 

 one half longer than the fourth. Clypeus and cheeks covered with a close velvety 

 pubescence ; the front and vertex densely clothed with rather long cinereous pubescence, 

 the occiput densely covered with shorter hair. Clypeus laterally at the apex yellowish 

 and bearing a few scattered punctures ; labrum more strongly and numerously punc- 

 tured in the middle ; mandibles piceous behind the teeth, obscurely punctured. Thorax 

 thickly clothed with fuscous pubescence, which is especially long on the metathorax ; 

 closely and finely punctured ; the mesonotum opaque, the rest semi-shining ; apex of 

 the metanotum with a somewhat V-shaped projecting part in the centre, this part finely 

 rugose, almost opaque, and having a narrow furrow down its middle. Abdomen 

 shining, minutely punctured, and with a bluish tinge in the centre ; the basal mark is 

 oblique, broad, truncated at the top, rounded and narrowed at the bottom ; the next 

 two marks become narrowed on the lower side, and the apical pair are of nearly equal 

 width throughout; apical segment covered in the middle with large, elongated, 

 clearly separated punctures ; the sides coarsely rugose ; the apex rounded ; beneath and 

 laterally it is densely covered with short hair : the second, third, and fourth segments 

 have a yellow mark on the edges. Legs densely covered with silvery pile, especially 

 on the tibiae and tarsi, which appear white owing to the pubescence ; the tibial spines 

 and the spines on the four hinder tarsi clear white, the anterior tarsal spine blackish ; 

 metatarsal brush rufous ; claws brownish at the base. 



2. Monedula surinamensis. (Tab. VI. fig. 23, $ .) 



Apis surinamensis, De Geer, Mem. Ins. iii. p. 569, t. 28. fig. 1. 



Monedula surinamensis, Dahlb. Hymen. Eur. i. p. 187 ; Smith, Cat. Hymen. Ins. iv. p. 332 1 ; Handl. 



Sitz. der k. Akad. der Wissensch. Wien, xcix. p. 115, t. 1. f. 13 2 . 

 Bembex continua, Fabr. Syst. Piez. p. 225. 

 Stictia continua, Illiger, in Rossi's Fauna Etrusca, 2nd edit. ii. p. 131. 



