296 



the surface hairs very minute and erect, and the basal joint of the tarsi 

 much longer than the second. In two species described herewith the 

 wings are unspotted. 



The larvai arc aquatic in habit, and as far as known all of the spe- 

 cies are bloodsuckers in the adult stage. 



Key to Species in State Laboratory Collection 



1. Wings clear, entirely unspotted 2 



— Wings distinctly spotted 3 



2. Mesonotum with numerous small Ijrown dots arranged in irregular 



longitudinal series 1. mulfipunctatus. 



Mesonotum with a few large brown marks (PI. XXIII, Fig. 3) . . . . 

 2. liicroglyj)hicns. 



3. Mesonotum with numerous small brown dots arranged in irregular 



longitudinal series ; wing as in Figure 2, Plate XXII 



3. varipennis. 



— Mesonotum with lai'gc brown marks on a grayish brown ground, 



or whitish pruin(\scont marks on a l)rown ground 4 



4. Mesonotum marked with white as in Figure 1, Plate XXIII 5 



— Mesonotum cither indistinctly marked or with dark brown marks. .6 



5. Anterior l)ranch of media with a white spot close to base (PI. XXII, 



Fig. 4) 4. guttipennis. 



— Anterior branch of media without white spot near base. . 



5. stellifer. 



6. Spots on wings indistinct (PI. XXII, Fig. 3) ; mesonotum without 



well-defined m;irks; hypopygium as in Figure 18, Plate XX 



G. sanguisiigiis. 



— Spots on wings clearly defined ; mesonotum Avith well-defined ])rown 



marks 7 



7. Wings with the clear spots rather small, the spot beyond the one at 



a])ex of third vein situated at the apex of antevicr bi-anch of me- 

 dia, and like the outer one in the second and third posterior cells 



touching the margin of the wing (PI. XXII, Fig. G) 



7. lin'nui1o])ofns. 



— Wings with the clear s])ots large, the spot beyond the one at apex of 



third vein situated distinctly before apex of first posterior cell, the 

 outer spot in second and third i^osterior cells separated from mar- 

 gin of wing (PI. XXII, Fig. 7) 8. crepuscv.laris. 



I. CULICOIDES MULTIPUXCTATUS, n. sp. 



Pcnialc. — Opacpie gray. Head brownish; antennrc and palpi pale 

 brown, the former yellowish towards base. Thorax densely covered 

 with gray pruinescence, the disc of mesonotum with numerous small 

 brown dots arranged in three longitudinal series, the median one con- 

 sisting of three rows of regularly rounded small dots which arc dis- 



