NO. 8 ANATOMICAL LIFE OF THE MOSQUITO SNODGRASS 



59 



food from ants. In these the proboscis is curved forward at its lower 

 end (fig. 22 E) ; the distal part is thickened and armed with long hairs. 

 The elongate labella terminate with a pair of small transparent lobes. 

 The species of Malaya are minute mosquitoes, much smaller than 

 ordinary ants. As described by Jacobson (1911) they sit on branches 



Fig. 22. — Various types of antennae, palpi, proboscides, and labia of adult 



mosquitoes. 



A, Cidex sp., head of male. B, Same, part of female antenna. C, Same, part of 

 male antenna. D, Toxorhynchitcs rutilus, head and proboscis of female. E, 

 Malaya jacobsoni, head and proboscis of female. F, Culex, distal end of male 

 labium, showing salivary duct. G, Phlebotomus verrucarum (Ceratopogonidae), 

 head and proboscis, posterior. 



Cd, cardo ; For, occipital foramen ; Lbl, labellum ; Pint, postmentum ; SIDct, 

 salivary duct; St, stipes; The, theca (prementum). 



inhabited by ants, and when an ant runs between the legs of one of 

 them the mosquito thrusts the end of its proboscis between the open 

 mandibles of the ant, which accommodatingly gives up its dinner to 

 the mosquito. The proboscis of the adult Malaya lacks mandibles and 

 maxillae. According to de Meijere (1911) these members are present 



