12 ENTOMOLOGICAL NEWS. [Jan., '04 



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thorax, bearing four stout, bristle-like, unbranched hairs, three 

 of equal length and one half the length of these; () a pair 

 on the meso- thoracic part of the thorax, bearing two stout, 

 bristle-like, unbranched hairs, unequal in length ; (r) a pair on 

 the meta-thoracic part of the thorax, similar to, but shorter 

 than those of b. These parts differ somewhat from correspond- 

 ing parts in other species examined. 



The pupa agrees in a general way with the pupa of A. macu- 

 lipcnnis described by Dr. Nuttall, and with my own observa- 

 tions upon A punctipennis . There is to be observed, however, 

 a difference in the character of certain hairs on the posterior 

 lateral margins of the abdominal segments. In the species 

 under observation, these are stout and simple on each segment 

 from the second to the eighth, becoming branched on the 

 eighth, agreeing in this particular with A. maculipennis, but 

 not with A. punctipennis. 



There is also a characteristic difference in the marginal teeth 

 on the posterior fins. In the new species these are short and 

 sharp, and appear in three longitudinal rows, the teeth decreas- 

 ing in size postero-anteriorly. 



It is in the adults, male and female, that the most character- 

 istic difference between species is found, noticeably in the 

 markings of the palpi, the setae on the genital lobes of males, 

 scales, and the markings of wings on both males and females. 



The following is a description of the adult of the new spe- 

 cies : 



Anopheles Franciscanus n sp. 



Male. Head dark brown, with short, dark, erect scales 

 toward the nape, emarginate and slightly forked, vertex and 

 anterior part of occiput with short, light brown scales not 

 forked, a tuft of light brown hairs projecting forward between 

 the eyes, a row of similar hairs projecting forward, encircling 

 the eyes posteriorly ; eyes deep purplish brown ; antennae 

 about two-thirds length of palpi, yellowish-brown hairs, basal 

 joint dark brown ; palpi equalling proboscis in length with 

 emarginate scales from base to tip on under and outer surfaces, 

 those upon outer surface dark, upon under surface light, long 

 light hairs covering distal third, becoming short and stout at - 



