LOUSE FAMILY TROCHILIPHAGIDAE — CARRIKER 313 



bluntly angulated; prothorax extending under head; body 1.72; head 

 0.47X0.50 coartatia 



b'. Frons broad (0.37); submarginal transverse carina of front largely pitchy 

 black, as well as posterior portion of preantennal carinae; temples uni- 

 formly rounded; sides of prothorax extending far under head in form of 



lateral black points; body 1.78; head 0.50X0.55 malvasae 



a'. Frons transverse. 



b. A concave, submarginal line across frons, with area between it and margin 

 hyaline; sides of temples uniformly convex; sides of pterothorax almost 

 straight; prominent median and lateral sternites in pterothorax (see 

 fig. 3/); body 1.74; head 0.49X0.53 simplex 



b' . Frontal area uniformly colored; sides of temples with angulation at eye; 

 sides of pterothorax strongly convex, with no visible sternal plates; 

 length 1.70; head 0.48X0.55 latitemporis 



section c 

 a. Body length 1.97. 



b. Frons wide (0.40) and deeply concave; head 0.52X0.63; temples strongly 

 convex, with prominent eye; occipital margin sinuate, angulated medi- 

 ally; prothorax large and extending under occiput, and with prominent 

 pitchy black lateral, submarginal carinae; prominent median prosternal 



plate and lateral metasternal sclerites grandior 



//. Frons narrow (0.33), with uniformly rounded sides and slightly concave 

 anterior margin; head 0.49X0.55; prothorax small (0.29X0.43); 

 pterothorax small, with straight sides; lateral carinae broken and mostly 



submarginal rhodopis 



a'. Body length 2.27. Frons faintly concave; eye prominent; sides of temples 

 with irregular margin; numerous short, spinelike setae on head, prothorax, 

 and legs; head 0.60X0.65 columbianus 



FEMALES 



Body length less than 2.00 (1.80 to 1.95) Section A 



Body length more than 2.05 (2.08 to 2.25) Section B 



Body length more than 2.35 (2.37 to 2.57) Section C 



SECTION A 



a. Frons slightly concave and wide (0.34), with sides only slightly convex; 

 sucking apparatus very slender, with both basal prongs and main stylet, 

 also very long (0.24); length 1.82; head 0.49X0.56 coarlatia 



a'. Frons transverse and narrow (0.15), with sides strongly divergent to ends of 

 submarginal, transverse carina, where it is 0.29 wide; stylet of sucking 

 apparatus extremely slender, with basal portion thickened, and total 

 length only 0.20 angustifrons and prominens 



SECTION B 



a. Frons noticeably concave. 



b. Sides of frons bluntly angulated. 



c. Occipital margin angulated medially : sucking apparatus with apical half 

 very slender and basal portion much thickened; presternum long, ex- 

 tending under head; a large, entire, prosternal plate in posterior por- 

 tion of segment; piercing points of mandibles short. Length 2.25; 

 head 0.57X0.68; frons 0.43 grandior 



