273. 

 PHILANTHUS ANDROGYNUS. 



Order Hymenoptera. Fam. Crabronidae Lat.^ Leach. 



Type of the Genus, Crabro Androgynus Rossi. 



Philanthus Fah., Panz., Lat. — Simblephilus Jur. — Crabro Uossi. 

 AntenncE remote, inserted in front of the face, short, robust, vel- 

 vety, attenuated towards the base, 13-jointed in the males j 12- 

 jointed in the females ; basal joint scarcely longer than the 3rd, 

 2nd subglobose, 3rd obconic-truncate, the remainder subqua- 

 drate, terminal joint semiovate (1). 



Labrum transverse, sides somewhat reflexed, anterior margin 

 sinuated, producing a tongue or membrane beneath, lobed in the 

 centre, with a small tubercle surrounded with a few long hairs (2) . 

 Mandibles large, long, bent, acute, crossing when at rest, nar- 

 rowed suddenly below the middle and slightly pilose (3), 

 MaxillcB thick, attached by a long incurved stalk, and terminated 

 by an oval pubescent lobe, with a smaller one below. Palpi 

 short and slender 6-jointed, basal joint minute, 2nd the longest, 

 clavate, the remainder of nearly equal length, the terminal one 

 very slender and subfusiform (4). 



Mentum long, fusifonn, incurved at the base. Lip large, broad, 

 cordiform, membranous and pubescent. Palpi shorter than the 

 lip, composed of 4 nearly equal subclavate joints, the terminal 

 one obovate (5). 

 Head very broad and orbicular, Clypeus quadridentaie, the 2 central 

 teeth the largest. Eyes notched on the inside. Ocelli 3 in triangle. 

 Thorax oval. Abdomen ovate conic. Superior Wings with 1 mar- 

 ginal and 4 submarginal cells. Legs strong. Tibiae, anterior with 

 a long spine at the apex producing a dilated andmembranous margin, 

 the A posterior spined. Tarsi 5 -jointed, basal joint very long, 4th 

 the shortest, the former emarginate at the base in the anterior pair 

 and with the 2nd, 3rd and 4th producing long lanceolate appendages 

 on the outside. Claws simple. Pulvilli distinct {8, fore leg of a fe- 

 male from which sex all the dissections were made). 



Androgynus iJossi. — pictusPanz.,F(36. — apivorusLa^ — diadema Jwr. 

 Female. Head and thorax black, shining, pubescent and thickly 

 punctured, the face below the antennae pale amber, and a line 

 behind the eyes ochreous. Trophi ferruginous, the mandibles 

 tipped with black ; a transverse line on the collar, another at the 

 base of the postscutellum, and a spot on each scapula pale yel- 

 low : the postscutellum very minutely and thickly punctured. 

 Abdomen and legs yellow, the former with a few scattered punc- 

 tures, the base black, every segment, excepting the apical one 

 with a black band at the base forming a triangle in the centre, 

 but very small on the penultimate joint. Coxae and base of thighs 

 black, tarsi slightly ochreous. 



In the Author's Cabinet. 



